1、查看当前的磁盘情况，/dev/vdb未挂载
fdisk -l
Disk /dev/vda: 107.4 GB, 107374182400 bytes, 209715200 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 label type: dos
Disk identifier: 0x000abcf4
Device Boot Start End Blocks Id System
/dev/vda1 * 2048 1026047 512000 83 Linux
/dev/vda2 1026048 209715166 104344559+ 83 Linux
Disk /dev/vdb: 214.7 GB, 214748364800 bytes, 419430400 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
2、格式化vdb
mkfs -t ext4 /dev/vdb
3、挂载磁盘到目录 /cbs（路径需要预先创建）
mount /dev/vdb /cbs
—-取消挂载：
umount /dev/vdb
4、设置开机自动挂载
vim /etc/fstab
添加这一条：
/dev/vdb /cbs ext4 defaults 0 0
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