挂在新云盘
首先lsblk 查看磁盘是否已经存在，比如以下120G的新盘，不存在请重启后在尝试查看。
root@h-1587531148664508295:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
loop0 7:0 0 63.9M 1 loop /snap/core20/2318
loop1 7:1 0 63.8M 1 loop /snap/core20/2686
loop2 7:2 0 87M 1 loop /snap/lxd/28373
loop3 7:3 0 91.4M 1 loop /snap/lxd/36918
loop4 7:4 0 38.8M 1 loop /snap/snapd/21759
loop5 7:5 0 50.9M 1 loop /snap/snapd/25577
vda 252:0 0 20G 0 disk
├─vda1 252:1 0 19.9G 0 part /
├─vda14 252:14 0 4M 0 part
└─vda15 252:15 0 106M 0 part /boot/efi
vdb 252:16 0 120G 0 disk
然后使用 fdisk -l 命令查看磁盘文件信息
root@h-1587531148664508295:~# fdisk -l
Disk /dev/loop0: 63.95 MiB, 67051520 bytes, 130960 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop1: 63.77 MiB, 66871296 bytes, 130608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop2: 87.03 MiB, 91258880 bytes, 178240 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop3: 91.4 MiB, 95842304 bytes, 187192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop4: 38.83 MiB, 40714240 bytes, 79520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/loop5: 50.93 MiB, 53399552 bytes, 104296 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/vda: 20 GiB, 21474836480 bytes, 41943040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 251CA31D-FA80-41E2-A9F9-4F45B5FAE58D
Device Start End Sectors Size Type
/dev/vda1 227328 41943006 41715679 19.9G Linux filesystem
/dev/vda14 2048 10239 8192 4M BIOS boot
/dev/vda15 10240 227327 217088 106M EFI System
Partition table entries are not in disk order.
Disk /dev/vdb: 120 GiB, 128849018880 bytes, 251658240 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
确定新盘（肯定是无分区，并且大容量的，这里就一个120Gib 满足条件，跟上面 lsblk 列出的没区别）
/dev/vdb
然后创建分区并格式化文件系统，Linux一般都是EXT4文件系统
创建分区（以 GPT 分区表为例）
sudo parted /dev/vdb mklabel gpt
sudo parted /dev/vdb mkpart primary ext4 0% 100%
格式化为 ext4 文件系统
sudo mkfs.ext4 /dev/vdb1
创建挂载目录并挂载
sudo mkdir -p /mnt/vdb1
sudo mount /dev/vdb1 /mnt/vdb1
查看新盘分区信息：
sudo parted /dev/vdb print
然后设置开机自动挂载：（获取分区的 UUID）
root@h-1587531148664508295:/mnt/vdb1# sudo blkid /dev/vdb1
、sudo: unable to resolve host h-1587531148664508295: Name or service not known
、/dev/vdb1: UUID="4cd0bccb-f6ab-4860-bc3e-2c6e4b8f2563" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="primary" PARTUUID="8c921b12-0621-4027-b892-fb7599fe4dd4"
编辑 /etc/fstab
sudo nano /etc/fstab
添加以下行（使用 UUID 替代设备名）：
UUID=4cd0bccb-f6ab-4860-bc3e-2c6e4b8f2563 /mnt/vdb1 ext4 defaults 0 2
测试配置
sudo mount -a # 无报错表示配置正确
设置目录权限
若需普通用户访问挂载点：
sudo chown -R ubuntu:ubuntu /mnt/vdb1 # 假设用户为 ubuntu
sudo chmod -R 755 /mnt/vdb1
可以通过以下命令查看是否已经挂载。
df -h
修复问题：
sudo: unable to resolve host h-1587531148664508295: Name or service not known
编辑 /etc/hosts文件
sudo nano /etc/hosts
添加以下行（将 h-1587531148664508295替换为实际主机名）：
127.0.0.1 h-1587531148664508295
验证修复
ping $(hostname) # 应返回本地回环地址（127.0.0.1）