开机自动挂载
/etc/fstab
vim /etc/fstab
/dev/sdb2 /u2 ext4 defaults 0 0
mount -a
bash
[root@web ~]# vim /etc/fstab
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 ext4 defaults 0 0
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# mount -a
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2/etc/rc.local
192.168.235.20
bash
[root@web ~]# cat /etc/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
touch /var/lock/subsys/local
mount -o ro /dev/sr0 /mnt
自动挂载
yum install autofs
vim /etc/auto.master
/u01 /etc/auto.test t -120
vim /etc/auto.test
test -fstype=ext4,ro /dev/sdb3
service autofs restart
bash
[root@web ~]# mkdir /u05
[root@web ~]# vim /etc/auto.master
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[root@web ~]# vim /etc/auto.master
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
[root@web ~]# cat /auto.test
cat: /auto.test: 没有那个文件或目录
[root@web ~]# blkid /dev/sdn5
[root@web ~]# blkid /dev/sdb5
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[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
[root@web ~]# blkid /dev/sdb3
[root@web ~]# blkid /dev/sdb2
/dev/sdb2: UUID="faacf3c9-5c84-4fae-a3d2-f323d9cbc0ef" TYPE="ext4"
[root@web ~]# mkfs.ext4 /dev/sdb3
mke2fs 1.42.9 (28-Dec-2013)
文件系统标签=
OS type: Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
65536 inodes, 262144 blocks
13107 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: 完成
正在写入inode表: 完成
Creating journal (8192 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
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[root@web ~]# blkid /dev/sdb3
/dev/sdb3: UUID="3f7c2f3d-7eb9-4a46-b4f4-7a1ecde49b14" TYPE="ext4"
[root@web ~]# e2label /dev/sdb3 d3
[root@web ~]# blkid /dev/sdb3
/dev/sdb3: LABEL="d3" UUID="3f7c2f3d-7eb9-4a46-b4f4-7a1ecde49b14" TYPE="ext4"
[root@web ~]# cat /etc/auto.test
cat: /etc/auto.test: 没有那个文件或目录
[root@web ~]# vim /etc/auto.test
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[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# service autofs start
Redirecting to /bin/systemctl start autofs.service
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# ls /u05
[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
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[root@web ~]# ls /u05
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
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[root@web ~]# service autofs restart
Redirecting to /bin/systemctl restart autofs.service
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# cd /u05
[root@web u05]# ls
[root@web u05]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
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[root@web u05]# ls /u05/test
lost+found
[root@web u05]# ls /u05
testnode1 /share/nfs 挂载到server下的notes
node1:
rpm -list | grep rpcbind
rpm -list | grep nfs
mkdir /share/nfs
vim /etc/exports
/share/nfs serverip/24(rw)
service rpcbind restart
service nfs restart
bash
caozx26@192.168.235.200's password:
┌────────────────────────────────────────────────────────────────────┐
│ • MobaXterm 20.0 • │
│ (SSH client, X-server and networking tools) │
│ │
│ ➤ SSH session to caozx26@192.168.235.200 │
│ • SSH compression : ✘ │
│ • SSH-browser : ✔ │
│ • X11-forwarding : ✔ (remote display is forwarded through SSH) │
│ • DISPLAY : ✔ (automatically set on remote server) │
│ │
│ ➤ For more info, ctrl+click on help or visit our website │
└────────────────────────────────────────────────────────────────────┘
Last login: Sun Jul 13 21:33:40 2025 from 192.168.235.1
[caozx26@client ~]$ hostname
client.backup.cn
[caozx26@client ~]$ rpm -qa|grep ^nfs
nfs-utils-1.3.0-0.68.el7.x86_64
nfs4-acl-tools-0.3.3-21.el7.x86_64
[caozx26@client ~]$ rpm -ql rpcbind
/etc/sysconfig/rpcbind
/usr/lib/systemd/system/rpcbind.service
/usr/lib/systemd/system/rpcbind.socket
/usr/lib/tmpfiles.d/rpcbind.conf
/usr/sbin/rpcbind
/usr/sbin/rpcinfo
/usr/share/doc/rpcbind-0.2.0
/usr/share/doc/rpcbind-0.2.0/AUTHORS
/usr/share/doc/rpcbind-0.2.0/ChangeLog
/usr/share/doc/rpcbind-0.2.0/README
/usr/share/man/man8/rpcbind.8.gz
/usr/share/man/man8/rpcinfo.8.gz
/var/lib/rpcbind
[caozx26@client ~]$ ls /share
ls: 无法访问/share: 没有那个文件或目录
[caozx26@client ~]$ cd /sjare
-bash: cd: /sjare: 没有那个文件或目录
[caozx26@client ~]$ cd /share
-bash: cd: /share: 没有那个文件或目录
[caozx26@client ~]$ mkdif /share
bash: mkdif: 未找到命令...
[caozx26@client ~]$ mkdir /share
mkdir: 无法创建目录"/share": 权限不够
[caozx26@client ~]$ sudo su
[sudo] caozx26 的密码：
对不起，请重试。
[sudo] caozx26 的密码：
[root@client caozx26]# ls /share
ls: 无法访问/share: 没有那个文件或目录
[root@client caozx26]# mkdir /share
[root@client caozx26]# cat /etc/exports
[root@client caozx26]# vim /etc/exports
[root@client caozx26]# cat /etc/exports
/share 192.168.235.0/24(rw,sync)
[root@client caozx26]# systemctl start nfs
[root@client caozx26]# systemctl start rpcbind
[root@client caozx26]# ss -naltp | grep 111
LISTEN 0 128 *:111 *:* users:(("rpcbind",pid=696,fd=8))
LISTEN 0 128 [::]:111 [::]:* users:(("rpcbind",pid=696,fd=11))
[root@client caozx26]# mkdir /share/nfs -p
[root@client caozx26]# touch /share/nfs/file{1..5}
[root@client caozx26]# cat /etc/exports
/share 192.168.235.0/24(rw,sync)
[root@client caozx26]# vim /etc/exports
[root@client caozx26]# cat /etc/exports
/share/nfs 192.168.235.0/24(rw,sync)
[root@client caozx26]# service rpcbind restart
Redirecting to /bin/systemctl restart rpcbind.service
[root@client caozx26]# service nfs restart
Redirecting to /bin/systemctl restart nfs.service
[root@client caozx26]# ls /share/nfs
file1 file2 file3 file4 file5
[root@client caozx26]#
Network error: Software caused connection abserver:
showmount -e nodeip
vim /etc/auto.master
/- /etc/auto.notes -t 120
vim /etc/auto.notes
/notes -nfs,ro node1ip:/share/nfs
service autofs restart
ls /notes
df -h
bash
[root@web u05]# showmount -e 192.168.235.200
Export list for 192.168.235.200:
/share/nfs 192.168.235.0/24
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[root@web u05]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/u06 /etc/auto.notes --timeout 60
[root@web u05]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web u05]# vim /etc/auto.master
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[root@web u05]# ls /u06
[root@web u05]# cd /u06
[root@web u06]# ls
[root@web u06]# cat /etc/auto.notes
/notes -nfs,ro 192.168.235.200:/share/nfs
[root@web u06]# vim /etc/auto.master
[root@web u06]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/- /etc/auto.notes --timeout 60
[root@web u06]#
Network error: Software caused connection abort
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Session stopped
- Press <return> to exit tab
- Press R to restart session
- Press S to save terminal output to file
root@192.168.235.20's password:
▒▒▒ʱ▒▒ܾ▒
root@192.168.235.20's password:
┌────────────────────────────────────────────────────────────────────┐
│ • MobaXterm 20.0 • │
│ (SSH client, X-server and networking tools) │
│ │
│ ➤ SSH session to root@192.168.235.20 │
│ • SSH compression : ✘ │
│ • SSH-browser : ✔ │
│ • X11-forwarding : ✔ (remote display is forwarded through SSH) │
│ • DISPLAY : ✔ (automatically set on remote server) │
│ │
│ ➤ For more info, ctrl+click on help or visit our website │
└────────────────────────────────────────────────────────────────────┘
Last failed login: Mon Jul 14 21:14:35 CST 2025 from 192.168.235.1 on ssh:notty
There was 1 failed login attempt since the last successful login.
Last login: Mon Jul 14 19:21:29 2025 from 192.168.235.1
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/- /etc/auto.notes --timeout 60
[root@web ~]# cat /etc/auto.notes
/notes -nfs,ro 192.168.235.200:/share/nfs
[root@web ~]# ls /notes
ls: 无法访问/notes: 没有那个文件或目录
[root@web ~]# service autofs restart
Redirecting to /bin/systemctl restart autofs.service
[root@web ~]# ls /notes
file1 file2 file3 file4 file5
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
192.168.235.200:/share/nfs 17G 4.5G 13G 27% /notes物理卷
bash
[root@web test]# pvcreate /dev/sdb6 /dev/sdb7
Physical volume "/dev/sdb6" successfully created.
Physical volume "/dev/sdb7" successfully created.
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[root@web test]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <19.00g 0
/dev/sdb6 lvm2 --- 1.00g 1.00g
/dev/sdb7 lvm2 --- 1.00g 1.00g
[root@web test]# pvdisplay /sdv/sdb6
Failed to find device for physical volume "/sdv/sdb6".
[root@web test]# pvdispy /dev/sdb6
bash: pvdispy: 未找到命令...
[root@web test]# pvdisplay /dev/sdb6
"/dev/sdb6" is a new physical volume of "1.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sdb6
VG Name
PV Size 1.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID 9CmJ8F-CIvN-vVhK-dI9L-UwlB-Pt0A-q19e3S
[root@web test]# vgcreate vg01 /dev/sdb6 /dev/sdb7
Volume group "vg01" successfully created
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[root@web test]# vgs vg01
VG #PV #LV #SN Attr VSize VFree
vg01 2 0 0 wz--n- 1.99g 1.99g
[root@web test]#记录
bash
Network error: Connection timed out
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Session stopped
- Press <return> to exit tab
- Press R to restart session
- Press S to save terminal output to file
root@192.168.235.20's password:
▒▒▒ʱ▒▒ܾ▒
root@192.168.235.20's password:
┌────────────────────────────────────────────────────────────────────┐
│ • MobaXterm 20.0 • │
│ (SSH client, X-server and networking tools) │
│ │
│ ➤ SSH session to root@192.168.235.20 │
│ • SSH compression : ✘ │
│ • SSH-browser : ✔ │
│ • X11-forwarding : ✔ (remote display is forwarded through SSH) │
│ • DISPLAY : ✔ (automatically set on remote server) │
│ │
│ ➤ For more info, ctrl+click on help or visit our website │
└────────────────────────────────────────────────────────────────────┘
Last failed login: Mon Jul 14 19:21:22 CST 2025 from 192.168.235.1 on ssh:notty
There was 1 failed login attempt since the last successful login.
Last login: Sun Jul 13 22:39:30 2025 from 192.168.235.1
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 8.7M 478M 2% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
/dev/sdb2 976M 2.6M 907M 1% /u2
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 8.6M 478M 2% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
/dev/sdb2 976M 2.6M 907M 1% /u2
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
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[root@web ~]# mount -o remount,ro /u03
Password for user01@//192.168.235.20/smb_share: ***
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 8.6M 478M 2% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
/dev/sdb2 976M 2.6M 907M 1% /u2
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# mount -o remount,ro /dev.sdb1
mount: 在 /etc/fstab 中找不到 /dev.sdb1
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[root@web ~]# mount -o remount,ro /dev/sdb1
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
/dev/sdb2 976M 2.6M 907M 1% /u2
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# blkid /dev/sdb1
/dev/sdb1: UUID="3508e39c-1cd2-4bbb-8e45-608883ed4513" TYPE="ext4"
[root@web ~]# e2label /dev/sdb1 d1
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[root@web ~]# blkid /dev/sdb1
/dev/sdb1: LABEL="d1" UUID="3508e39c-1cd2-4bbb-8e45-608883ed4513" TYPE="ext4"
[root@web ~]# umount /u2
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
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[root@web ~]# vim /dev/fstab
[root@web ~]# vim /etc/fstab
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[root@web ~]#
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 xfs defaults 0 0
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 xfs defaults 0 0
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[root@web ~]# cat /u2
cat: /u2: 是一个目录
[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
[root@web ~]# mount -a
mount: 文件系统类型错误、选项错误、/dev/sdb2 上有坏超级块、
缺少代码页或助手程序，或其他错误
有些情况下在 syslog 中可以找到一些有用信息- 请尝试
dmesg | tail 这样的命令看看。
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 xfs defaults 0 0
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[root@web ~]# blkid /dev/sdb2
/dev/sdb2: UUID="faacf3c9-5c84-4fae-a3d2-f323d9cbc0ef" TYPE="ext4"
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[root@web ~]# vim /etc/fstab
[root@web ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 ext4 defaults 0 0
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
[root@web ~]# mount -a
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# cat /etc/rc.local
#!/bin/bash
# THIS FILE IS ADDED FOR COMPATIBILITY PURPOSES
#
# It is highly advisable to create own systemd services or udev rules
# to run scripts during boot instead of using this file.
#
# In contrast to previous versions due to parallel execution during boot
# this script will NOT be run after all other services.
#
# Please note that you must run 'chmod +x /etc/rc.d/rc.local' to ensure
# that this script will be executed during boot.
touch /var/lock/subsys/local
mount -o ro /dev/sr0 /mnt
[root@web ~]# yum install autofs
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
local | 3.6 kB 00:00:00
软件包 1:autofs-5.0.7-113.el7.x86_64 已安装并且是最新版本
无须任何处理
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[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# mkdir /u05
[root@web ~]# vim /etc/auto.master
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[root@web ~]# vim /etc/auto.master
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
[root@web ~]# cat /auto.test
cat: /auto.test: 没有那个文件或目录
[root@web ~]# blkid /dev/sdn5
[root@web ~]# blkid /dev/sdb5
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[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
[root@web ~]# blkid /dev/sdb3
[root@web ~]# blkid /dev/sdb2
/dev/sdb2: UUID="faacf3c9-5c84-4fae-a3d2-f323d9cbc0ef" TYPE="ext4"
[root@web ~]# mkfs.ext4 /dev/sdb3
mke2fs 1.42.9 (28-Dec-2013)
文件系统标签=
OS type: Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
65536 inodes, 262144 blocks
13107 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=268435456
8 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376
Allocating group tables: 完成
正在写入inode表: 完成
Creating journal (8192 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
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[root@web ~]# blkid /dev/sdb3
/dev/sdb3: UUID="3f7c2f3d-7eb9-4a46-b4f4-7a1ecde49b14" TYPE="ext4"
[root@web ~]# e2label /dev/sdb3 d3
[root@web ~]# blkid /dev/sdb3
/dev/sdb3: LABEL="d3" UUID="3f7c2f3d-7eb9-4a46-b4f4-7a1ecde49b14" TYPE="ext4"
[root@web ~]# cat /etc/auto.test
cat: /etc/auto.test: 没有那个文件或目录
[root@web ~]# vim /etc/auto.test
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[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# service autofs start
Redirecting to /bin/systemctl start autofs.service
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[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# ls /u05
[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
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[root@web ~]# ls /u05
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
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[root@web ~]# service autofs restart
Redirecting to /bin/systemctl restart autofs.service
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web ~]# cd /u05
[root@web u05]# ls
[root@web u05]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
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[root@web u05]# ls /u05/test
lost+found
[root@web u05]# ls /u05
test
[root@web u05]# shownmount -e 192.168.235.100
bash: shownmount: 未找到命令...
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[root@web u05]# showmount -e 192.168.235.200
Export list for 192.168.235.200:
/share/nfs 192.168.235.0/24
[root@web u05]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
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[root@web u05]# ls /u05
test
[root@web u05]# vim /etc/auto.master
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[root@web u05]# mkdir /u06
[root@web u05]# ls /u06
[root@web u05]# vim /etc/auto.master
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[root@web u05]# cat /etc/auto.notes
cat: /etc/auto.notes: 没有那个文件或目录
[root@web u05]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/u06 /etc/auto.notes --timeout 60
[root@web u05]# cat /etc/auto.notes
cat: /etc/auto.notes: 没有那个文件或目录
[root@web u05]# vim /etc/auto.notes
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[root@web u05]# cat /etc/auto.notes
/notes -nfs,ro 192.168.235.200:/share/nfs
[root@web u05]# service autofs restart
Redirecting to /bin/systemctl restart autofs.service
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[root@web u05]# ls /notes
ls: 无法访问/notes: 没有那个文件或目录
[root@web u05]# ls /notes
ls: 无法访问/notes: 没有那个文件或目录
[root@web u05]# showmount -e 192.168.235.200
Export list for 192.168.235.200:
/share/nfs 192.168.235.0/24
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[root@web u05]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/u06 /etc/auto.notes --timeout 60
[root@web u05]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
[root@web u05]# vim /etc/auto.master
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[root@web u05]# ls /u06
[root@web u05]# cd /u06
[root@web u06]# ls
[root@web u06]# cat /etc/auto.notes
/notes -nfs,ro 192.168.235.200:/share/nfs
[root@web u06]# vim /etc/auto.master
[root@web u06]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/- /etc/auto.notes --timeout 60
[root@web u06]#
Network error: Software caused connection abort
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Session stopped
- Press <return> to exit tab
- Press R to restart session
- Press S to save terminal output to file
root@192.168.235.20's password:
▒▒▒ʱ▒▒ܾ▒
root@192.168.235.20's password:
┌────────────────────────────────────────────────────────────────────┐
│ • MobaXterm 20.0 • │
│ (SSH client, X-server and networking tools) │
│ │
│ ➤ SSH session to root@192.168.235.20 │
│ • SSH compression : ✘ │
│ • SSH-browser : ✔ │
│ • X11-forwarding : ✔ (remote display is forwarded through SSH) │
│ • DISPLAY : ✔ (automatically set on remote server) │
│ │
│ ➤ For more info, ctrl+click on help or visit our website │
└────────────────────────────────────────────────────────────────────┘
Last failed login: Mon Jul 14 21:14:35 CST 2025 from 192.168.235.1 on ssh:notty
There was 1 failed login attempt since the last successful login.
Last login: Mon Jul 14 19:21:29 2025 from 192.168.235.1
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/- /etc/auto.notes --timeout 60
[root@web ~]# cat /etc/auto.notes
/notes -nfs,ro 192.168.235.200:/share/nfs
[root@web ~]# ls /notes
ls: 无法访问/notes: 没有那个文件或目录
[root@web ~]# service autofs restart
Redirecting to /bin/systemctl restart autofs.service
[root@web ~]# ls /notes
file1 file2 file3 file4 file5
[root@web ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
192.168.235.200:/share/nfs 17G 4.5G 13G 27% /notes
[root@web ~]# ls /u03
新建 文本文档.txt
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[root@web ~]# ls /notes
file1 file2 file3 file4 file5
[root@web ~]# cat /etc/auto.master
#
# Sample auto.master file
# This is a 'master' automounter map and it has the following format:
# mount-point [map-type[,format]:]map [options]
# For details of the format look at auto.master(5).
#
/misc /etc/auto.misc
#
# NOTE: mounts done from a hosts map will be mounted with the
# "nosuid" and "nodev" options unless the "suid" and "dev"
# options are explicitly given.
#
/net -hosts
#
# Include /etc/auto.master.d/*.autofs
# The included files must conform to the format of this file.
#
+dir:/etc/auto.master.d
#
# Include central master map if it can be found using
# nsswitch sources.
#
# Note that if there are entries for /net or /misc (as
# above) in the included master map any keys that are the
# same will not be seen as the first read key seen takes
# precedence.
#
+auto.master
/u05 /etc/auto.test -t 120
/- /etc/auto.notes --timeout 60
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[root@web ~]# cat /etc/auto.test
test -fstype=ext4,ro :/dev/sdb3
[root@web ~]# cd /u05
[root@web u05]# ls
[root@web u05]# cd /u05/test
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[root@web test]# ls
lost+found
[root@web test]# ls /u05/test
lost+found
[root@web test]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 470M 0 470M 0% /dev
tmpfs 487M 0 487M 0% /dev/shm
tmpfs 487M 15M 472M 4% /run
tmpfs 487M 0 487M 0% /sys/fs/cgroup
/dev/mapper/centos-root 17G 9.2G 7.8G 55% /
/dev/sda1 1014M 172M 843M 17% /boot
/dev/sr0 4.4G 4.4G 0 100% /mnt
tmpfs 98M 28K 98M 1% /run/user/1000
/dev/sdb1 976M 2.6M 907M 1% /u01
tmpfs 98M 0 98M 0% /run/user/0
//192.168.235.20/smb_share 17G 9.2G 7.8G 55% /u03
/dev/sdb2 976M 2.6M 907M 1% /u2
192.168.235.200:/share/nfs 17G 4.5G 13G 27% /notes
/dev/sdb3 976M 2.6M 907M 1% /u05/test
[root@web test]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Sat Apr 19 17:11:28 2025
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
UUID=0671af2f-69a1-4a84-bb51-ceb937bc1a92 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdb2 /u2 ext4 defaults 0 0
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[root@web test]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 20G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 19G 0 part
├─centos-root 253:0 0 17G 0 lvm /
└─centos-swap 253:1 0 2G 0 lvm [SWAP]
sdb 8:16 0 10G 0 disk
├─sdb1 8:17 0 1G 0 part /u01
├─sdb2 8:18 0 1G 0 part /u2
├─sdb3 8:19 0 1G 0 part /u05/test
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
├─sdb6 8:22 0 1G 0 part
├─sdb7 8:23 0 1G 0 part
├─sdb8 8:24 0 1G 0 part
└─sdb9 8:25 0 900M 0 part
sr0 11:0 1 4.4G 0 rom /mnt
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[root@web test]# pvcreate /dev/sdb6 /dev/sdb7
Physical volume "/dev/sdb6" successfully created.
Physical volume "/dev/sdb7" successfully created.
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[root@web test]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda2 centos lvm2 a-- <19.00g 0
/dev/sdb6 lvm2 --- 1.00g 1.00g
/dev/sdb7 lvm2 --- 1.00g 1.00g
[root@web test]# pvdisplay /sdv/sdb6
Failed to find device for physical volume "/sdv/sdb6".
[root@web test]# pvdispy /dev/sdb6
bash: pvdispy: 未找到命令...
[root@web test]# pvdisplay /dev/sdb6
"/dev/sdb6" is a new physical volume of "1.00 GiB"
--- NEW Physical volume ---
PV Name /dev/sdb6
VG Name
PV Size 1.00 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID 9CmJ8F-CIvN-vVhK-dI9L-UwlB-Pt0A-q19e3S
[root@web test]# vgcreate vg01 /dev/sdb6 /dev/sdb7
Volume group "vg01" successfully created
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[root@web test]# vgs vg01
VG #PV #LV #SN Attr VSize VFree
vg01 2 0 0 wz--n- 1.99g 1.99g
[root@web test]#192.168.235.200
bash
caozx26@192.168.235.200's password:
Remote side unexpectedly closed network connection
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Session stopped
- Press <return> to exit tab
- Press R to restart session
- Press S to save terminal output to file
caozx26@192.168.235.200's password:
┌────────────────────────────────────────────────────────────────────┐
│ • MobaXterm 20.0 • │
│ (SSH client, X-server and networking tools) │
│ │
│ ➤ SSH session to caozx26@192.168.235.200 │
│ • SSH compression : ✘ │
│ • SSH-browser : ✔ │
│ • X11-forwarding : ✔ (remote display is forwarded through SSH) │
│ • DISPLAY : ✔ (automatically set on remote server) │
│ │
│ ➤ For more info, ctrl+click on help or visit our website │
└────────────────────────────────────────────────────────────────────┘
Last login: Sun Jul 13 21:33:40 2025 from 192.168.235.1
[caozx26@client ~]$ hostname
client.backup.cn
[caozx26@client ~]$ rpm -qa|grep ^nfs
nfs-utils-1.3.0-0.68.el7.x86_64
nfs4-acl-tools-0.3.3-21.el7.x86_64
[caozx26@client ~]$ rpm -ql rpcbind
/etc/sysconfig/rpcbind
/usr/lib/systemd/system/rpcbind.service
/usr/lib/systemd/system/rpcbind.socket
/usr/lib/tmpfiles.d/rpcbind.conf
/usr/sbin/rpcbind
/usr/sbin/rpcinfo
/usr/share/doc/rpcbind-0.2.0
/usr/share/doc/rpcbind-0.2.0/AUTHORS
/usr/share/doc/rpcbind-0.2.0/ChangeLog
/usr/share/doc/rpcbind-0.2.0/README
/usr/share/man/man8/rpcbind.8.gz
/usr/share/man/man8/rpcinfo.8.gz
/var/lib/rpcbind
[caozx26@client ~]$ ls /share
ls: 无法访问/share: 没有那个文件或目录
[caozx26@client ~]$ cd /sjare
-bash: cd: /sjare: 没有那个文件或目录
[caozx26@client ~]$ cd /share
-bash: cd: /share: 没有那个文件或目录
[caozx26@client ~]$ mkdif /share
bash: mkdif: 未找到命令...
[caozx26@client ~]$ mkdir /share
mkdir: 无法创建目录"/share": 权限不够
[caozx26@client ~]$ sudo su
[sudo] caozx26 的密码：
对不起，请重试。
[sudo] caozx26 的密码：
[root@client caozx26]# ls /share
ls: 无法访问/share: 没有那个文件或目录
[root@client caozx26]# mkdir /share
[root@client caozx26]# cat /etc/exports
[root@client caozx26]# vim /etc/exports
[root@client caozx26]# cat /etc/exports
/share 192.168.235.0/24(rw,sync)
[root@client caozx26]# systemctl start nfs
[root@client caozx26]# systemctl start rpcbind
[root@client caozx26]# ss -naltp | grep 111
LISTEN 0 128 *:111 *:* users:(("rpcbind",pid=696,fd=8))
LISTEN 0 128 [::]:111 [::]:* users:(("rpcbind",pid=696,fd=11))
[root@client caozx26]# mkdir /share/nfs -p
[root@client caozx26]# touch /share/nfs/file{1..5}
[root@client caozx26]# cat /etc/exports
/share 192.168.235.0/24(rw,sync)
[root@client caozx26]# vim /etc/exports
[root@client caozx26]# cat /etc/exports
/share/nfs 192.168.235.0/24(rw,sync)
[root@client caozx26]# service rpcbind restart
Redirecting to /bin/systemctl restart rpcbind.service
[root@client caozx26]# service nfs restart
Redirecting to /bin/systemctl restart nfs.service
[root@client caozx26]# ls /share/nfs
file1 file2 file3 file4 file5
[root@client caozx26]#
Network error: Software caused connection abort
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
Session stopped
- Press <return> to exit tab
- Press R to restart session
- Press S to save terminal output to file