 | | | Umounting a file system in Init 1 | Umounting a file system in Init 1 2006-12-04 - By Rick Stevens
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On Sat, 2006-12-02 at 19:43 -0800, Mobolaji.Osinuga@(protected)
wrote:
> Hello,
>
> I brought down my test system to single user mode using init 1. I have 2
> partitions on this system, /(/dev/sda1) and /var (/dev/sda6).
> I'm trying to umount the /var file system but it's reporting device busy.
> Umounting forcefully doesn't help either.
>
> Can someone give me a killer command to umount this partition, while still
> maintaining the serenity of my system? Or is this a forbidden process so
> that I can start with rescue disk instead?
The odds are that the system logger is still running and holding
/var/log/messages open. First, try running (as the root user):
service syslog stop
Then try unmounting /var. If you still can't unmount it, you can find
out what progtrams have files open on it by doing by running this
command as the root user:
lsof | grep /var
Find the process(es) that are still holding something on /var open and
shut them down. You can shut them down rudely by doing (as root):
kill -9 procid
Replace "procid" with the process ID you got from the 'lsof' command for
the process in question.
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
- Rick Stevens, Senior Systems Engineer rstevens@(protected) -
- VitalStream, Inc. http://www.vitalstream.com -
- -
- C program run. C program crash. C programmer quit. -
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
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