下面两条命令分别通过设备名和挂载点卸载文件系统,同时输出详细信息:
umount -v /dev/sda1 通过设备名卸载
/dev/sda1 umounted
umount -v /mnt/mymount/ 通过挂载点卸载
/tmp/diskboot.img umounted
如果设备正忙,卸载即告失败。卸载失败的常见原因是,某个打开的shell当前目录为挂载点里的某个目录:
umount -v /mnt/mymount/
umount: /mnt/mymount: device is busy
umount: /mnt/mymount: device is busy