检测是否有分区
# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdf 8:80 0 5.5T 0 disk sdd 8:48 0 5.5T 0 disk sdm 8:192 0 5.5T 0 disk sdb 8:16 0 5.5T 0 disk sdk 8:160 0 5.5T 0 disk sdi 8:128 0 5.5T 0 disk sdg 8:96 0 5.5T 0 disk sde 8:64 0 5.5T 0 disk sdc 8:32 0 5.5T 0 disk sdl 8:176 0 5.5T 0 disk sda 8:0 0 278.9G 0 disk ├─sda4 8:4 0 20G 0 part /var ├─sda2 8:2 0 512M 0 part /boot ├─sda5 8:5 0 8G 0 part [SWAP] ├─sda3 8:3 0 20G 0 part / ├─sda1 8:1 0 1M 0 part └─sda6 8:6 0 230.4G 0 part /data sdj 8:144 0 5.5T 0 disk sdh 8:112 0 5.5T 0 disk
是否有文件系统,没有文件系统不会显示在这个列表里
# blkid /dev/sdm: UUID="5bb3fb8b-5359-4f45-a961-d54a451537cd" TYPE="xfs" /dev/sdl: UUID="bb9e9b95-41f4-466c-80f1-4c0b85dd7d6c" TYPE="xfs" /dev/sda2: UUID="d05a0c7d-aa8c-491f-b02d-e928ec14a1ab" TYPE="ext4" PARTUUID="af01f749-ee4e-480b-8979-5801b5898ecb"
清除文件系统
# wipefs -a /dev/sdg /dev/sdg: 4 bytes were erased at offset 0x00000000 (xfs): 58 46 53 42