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-   -   Unable to umount (https://www.linuxquestions.org/questions/linux-general-1/unable-to-umount-365187/)

Harlin 09-20-2005 07:33 AM
Unable to umount
 
I have /var mounted from a separate partition. I was wanting to run fsck on it but tried to umount it first. I kept getting /dev/hda5 busy messages -- this was after I went into single user mode (init 1). Any clues as to how I can umount it cleanly?

Thanks,

Harlin Serittt

Bruce Hill 09-20-2005 07:49 AM
Boot with a LiveCD. I assume it's under / now.

TruckStuff 09-20-2005 08:47 AM
You would probably have to shutdown all logging facilities and anything that looks for PID files. /var/log is where most systems log everything and lots of daemons look for PID files in /var/lock/subsys and the like. As long as those things are active, you won't be able to unmount /var.

Like Chinaman said: your best bet is to boot off of a LiveCD.

Lobais 12-19-2005 04:49 AM
You can use the fuser program to see which prosesses are using a device/folder/file.
Code:
[root@localhost ~]# fuser ~
/root:                3502c
[root@localhost ~]# pgrep -lu root |grep 3502
3502 bash

Harlin 12-19-2005 04:53 AM
Have been using Linux intensively for about 5 years now and have never heard of 'fuser' til this morning :o . Thanks for putting this here! :-)


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