/home 디렉토리를 umount 하려고 하는데 자꾸 장치가 사용중이라는 메세지가 뜬다.
이럴때 사용중인 프로세서들은 강제로 죽이고 umount 하면 된다.
[root@node1 home]# umount /dev/hda9
umount: /home: device is busy
umount: /home: device is busy
[root@node1 /]# fuser -cu /home
/home: 27150c(root)
[root@node1 /]# fuser -ck /home
[root@node1 /]# umount /dev/hda9
[root@node1 /]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/hda3 ext3 2.0G 400M 1.5G 22% /
/dev/hda8 ext3 996M 34M 911M 4% /tmp
/dev/hda7 ext3 4.3G 470M 3.6G 12% /var
/dev/hda6 ext3 4.8G 2.7G 1.9G 59% /usr
/dev/hda5 ext3 5.7G 472M 5.0G 9% /usr/local
/dev/hda1 ext3 17G 187M 16G 2% /boot
tmpfs tmpfs 859M 0 859M 0% /dev/shm
/dev/hdb1 ext3 111G 61G 45G 58% /home1
fuser 옵션
-u Append the user name of the process owner to each PID.
-k Kill processes accessing the file. Unless changed with -signal, SIGKILL is sent.
An fuser process never kills itself, but may kill other fuser processes.
The effective user ID of the process executing fuser is set to its real user ID before attempting to kill.
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Usage: fuser [ -a | -s | -c ] [ -n SPACE ] [ -SIGNAL ] [ -kimuv ] NAME...
[ - ] [ -n SPACE ] [ -SIGNAL ] [ -kimuv ] NAME...
fuser -l
fuser -V
Show which processes use the named files, sockets, or filesystems.
-a display unused files too
-c mounted FS
-f silently ignored (for POSIX compatibility)
-i ask before killing (ignored without -k)
-k kill processes accessing the named file
-l list available signal names
-m show all processes using the named filesystems
-n SPACE search in this name space (file, udp, or tcp)
-s silent operation
-SIGNAL send this signal instead of SIGKILL
-u display user IDs
-v verbose output
-V display version information
-4 search IPv4 sockets only
-6 search IPv6 sockets only
- reset options
udp/tcp names: [local_port][,[rmt_host][,[rmt_port]]] |
