简介

  1. # 首先插入 SD卡
  2. zhou@zhou:~$ dmesg 
  3. [ 2496.933595]  sdb: sdb1 sdb2
  4. [ 2497.023206] sd 3:0:0:0: [sdb] Attached SCSI removable disk
  5. # 切换到 root
  6. zhou@zhou:~$ sudo -i
  7. [sudo] password for zhou: 
  8. #  
  9. root@zhou:~# fdisk -l
  10. Device     Boot Start     End Sectors Size Id Type
  11. /dev/sdb1        1024   21503   20480  10M  c W95 FAT32 (LBA)
  12. /dev/sdb2       21504 8410111 8388608   4G 83 Linux
  13. # 可以看到有两个分区 sdb1 sdb2

删除分区

  1. root@zhou:~# fdisk /dev/sdb
  2. Command (m for help): d
  3. Partition number (1,2, default 2): 2
  5. Partition 2 has been deleted.
  7. Command (m for help): d
  8. Selected partition 1
  9. Partition 1 has been deleted.
  11. # 最后保存
  12. Command (m for help): w
  13. The partition table has been altered.
  14. Calling ioctl() to re-read partition table.
  15. Syncing disks.
  18. # 查看sdb的分区
  19. # 现在只有 sdb了
  20. root@zhou:~# ls -al /dev | grep sdb
  21. brw-rw----   1 root disk      8,  16 Feb 25 15:26 sdb

参考资料