[clug] trouble unmounting /var on production system
Tony and Robyn Lewis
beakysnugger at yahoo.co.uk
Sat May 13 12:55:23 GMT 2006
We have a box in a colo. Filesystems are ext3 over LVM over RAID5.
We've reached the point where we need to resize and increase /var, and
we'd rather not pay access fees to sit at the box.
Because it's ext3, I need to unmount the partition to resize it (BTW,
did you know you can resize reiser partitions while they're mounted?
Points awarded to reiser), but I can't unmount it.
I've killed everything I can find that is reasonable. "lsof +D /var"
shows nothing. "ps -ef | grep var" shows nothing. "fuser -m /var"
shows nothing. But I can't unmount. (BTW, I had to use all three of
these to find processes using /var, which I found strange)
I tried rebooting, and I tried "mount -r remount /var" first, but
nothing seems to work.
Anybody got any ideas?
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