装虚拟机时空间划小了，于是又加了 5G 的空间，折腾了半天，挂上去了。整理下弄个笔记，备用。
- 添加磁盘，查看磁盘状况
[root@db1 /]# fdisk -l
Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
|-----------|------|-------|-----|---|---|--------|----|------------|
| Device | Boot | Start | End || Blocks || Id | System |
| /dev/sda1 | * | 151 | 1305 || 9277537+ || 83 | Linux |
| /dev/sda2 | | 1 | 150 || 1204843+ || 82 | Linux swap |
| Partition table entries are not in disk order Disk /dev/sdb: 5368 MB, 5368709120 bytes ||||||| | |
| 255 heads, 63 sectors/track, ||| 652 | cylinders || | | |
| Units = cylinders of 16065 * ||| 512 | = 8225280 || bytes | | |
| Device Boot Start ||| | End || Blocks | Id | System |
从查询结果看出，多了一个/dev/sdb的盘
- 用 fdisk 对 /dev/sdb 进展分区
[root@db1 /]# fdisk /dev/sdb Command (m for help): n Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-652, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-652, default 652): Using default value 652
Command (m for help): w
The partition table has been altered!
Calling ioctl to re-read partition table. Syncing disks.
再次查看分区状况，多出来一个/dev/sdb1 的区，这个 1 是我们在前面指定的，假设我们指定 2，就变成 sdb2 了。
[root@db1 /]# fdisk -l
Disk /dev/sda: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
|-----------|-------|-------------|-------------|----------|----|------------|
| Device | Boot | Start | End | Blocks | Id | System |
| /dev/sda1 | * | 151 | 1305 | 9277537+ | 83 | Linux |
| /dev/sda2 | | 1 | 150 | 1204843+ | 82 | Linux swap |
| Partition | table | entries are | not in disk | order | | |
Disk /dev/sdb: 5368 MB, 5368709120 bytes
255 heads, 63 sectors/track, 652 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
|------------|------|-------|-----|----------|----|--------|
| Device | Boot | Start | End | Blocks | Id | System |
| /dev/sdb1 | | 1 | 652 | 5237158+ | 83 | Linux |
| [root@db1 | /]# | | | | | |
假设创立完之后，/proc/partitions 查看不到对应的分区，使用 parprobe 命令刷一下就可以了：
[root@web1 ~]# cat /proc/partitions major minor #blocks name
|---|---|---------------|
| 8 | 0 | 175825944 sda |
| 8 | 1 | 1020236 sda1 |
| 8 | 2 | 30716280 sda2 |
8 3 8193150 sda3
[root@web1 ~]# partprobe /dev/sda [root@web1 ~]# cat /proc/partitions major minor #blocks name
|---|---|----------------|
| 8 | 0 | 175825944 sda |
| 8 | 1 | 1020236 sda1 |
| 8 | 2 | 30716280 sda2 |
| 8 | 3 | 8193150 sda3 |
| 8 | 4 | 135893835 sda4 |
[root@web1 ~]#
- 格式化 /dev/sdb1 分区
[root@db1 /]# mkfs -t ext3 /dev/sdb1 mke2fs 1.35 (28-Feb-2023) Filesystem label=
OS type: Linux
Block size=4096 (log=2) Fragment size=4096 (log=2) 655360 inodes, 1309289 blocks
65464 blocks (5.00%) reserved for the super user First data block=0
Maximum filesystem blocks=1342177280
40 block groups
32768 blocks per group, 32768 fragments per group 16384 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 30 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
- 创立名目 并将 /dev/sdb1 挂在到该名目下
[root@db1 /]# ls
|--------|------|------------|-------|------|---------|----------|-----|
| backup | dev | initrd | media | opt | sbin | sys | usr |
| bin | etc | lib | misc | proc | selinux | tftpboot | var |
| boot | home | lost+found | mnt | root | srv | tmp | |
| [root@db1 /]# || mkdir /u01 | | | | | |
| [root@db1 /]# || ls | | | | | |
| backup dev || initrd | media | opt | sbin | sys | u01 |
| bin etc || lib | misc | proc | selinux | tftpboot | usr |
| boot home || lost+found | mnt | root | srv | tmp | var |
[root@db1 /]# mount /dev/sdb1 /u01
- 验证挂载是否成功
|----------------------------|----|----|-----------|---------|-----------|------|------------|
| [root@db1 /]# Filesystem | df | -k | 1K-blocks | Used | Available | Use% | Mounted on |
| /dev/sda1 | | | 9131772 | 7066884 | 1601012 | 82% | / |
| none | | | 454256 | 0 | 454256 | 0% | /dev/shm |
| /dev/sdb1 | | | 5154852 | 43040 | 4849956 | 1% | /backup |
- 设置开机自动挂载
[root@db1 /]# vi /etc/fstab
This file is edited by fstab-sync - see "man fstab-sync" for details
|-----------------|----------|--------|----------------|---|---|
| LABEL=/ | / | ext3 | defaults | 1 | 1 |
| none | /dev/pts | devpts | gid=5,mode=620 | 0 | 0 |
| none | /dev/shm | tmpfs | defaults | 0 | 0 |
| none | /proc | proc | defaults | 0 | 0 |
| none | /sys | sysfs | defaults | 0 | 0 |
| LABEL=SWAP-sda2 | swap | swap | defaults | 0 | 0 |