參考鏈接:https://blog.csdn.net/tianlesoftware/article/details/6194295
處理方法:
[root@iZ28cfgyfqbZ trunk]# fuser /mnt/c/[root@iZ28cfgyfqbZ trunk]# df -lh
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 6.6G 31G 18% /
tmpfs 1.9G 0 1.9G 0% /dev/shm
/dev/vdb 2.0T 133G 1.7T 8% /mnt/b
/dev/vdc1 2.0T 199M 1.9T 1% /mnt/c
[root@iZ28cfgyfqbZ trunk]# umount /mnt/c/
umount: /mnt/c: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
[root@iZ28cfgyfqbZ trunk]# fuser -km /mnt/c/
/mnt/c/: 13888c
[root@iZ28cfgyfqbZ trunk]# df -lh
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 6.6G 31G 18% /
tmpfs 1.9G 0 1.9G 0% /dev/shm
/dev/vdb 2.0T 133G 1.7T 8% /mnt/b
/dev/vdc1 2.0T 199M 1.9T 1% /mnt/c
[root@iZ28cfgyfqbZ trunk]# umount /mnt/c/
[root@iZ28cfgyfqbZ trunk]# df -lh
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 40G 6.6G 31G 18% /
tmpfs 1.9G 0 1.9G 0% /dev/shm
/dev/vdb 2.0T 133G 1.7T 8% /mnt/b
[root@iZ28cfgyfqbZ trunk]#