Re: Forcefully unmounting devfs...
From: Kris Kennaway (kris_at_obsecurity.org)
Date: 12/22/04
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- In reply to: Jilles Tjoelker: "Re: Forcefully unmounting devfs..."
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Date: Wed, 22 Dec 2004 11:42:46 -0800 To: Jilles Tjoelker <jilles@stack.nl>
On Wed, Dec 22, 2004 at 02:57:34PM +0100, Jilles Tjoelker wrote:
> On Tue, Dec 21, 2004 at 03:23:54PM -0800, Kris Kennaway wrote:
> > Unfortunately that's going to cause me a fair amount of pain, unless
> > there's a simple way to kill all processes running in a given chroot
>
> Not that hard, although it is a bit tricky because command names may
> contain spaces, so something obvious like this does not work in the
> general case:
>
> fstat /chroot |awk '$4 == "root" { print $3 }'
>
> But the following seems more reliable, assuming the mount points do not
> contain spaces:
>
> #!/bin/sh
>
> # USER CMD PID FD MOUNT INUM MODE SZ|DV R/W NAME
> # jilles zsh 57711 root / 2 drwxr-xr-x 1024 r /
>
> D="$1"
> fstat "$D" | sed -Ene 's#^.* +([[:digit:]]+) +root +/[^ ]* +[[:digit:]]+ +.......... +[[:digit:]]+ +(r|rw|w) +'"$D"'$#\1#p'
>
> This would need some |xargs kill or similar.
Thanks, I hadn't thought of using fstat. I'll give this a try!
Kris
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