I wrote:
> I attach a patch that modifies the mount program in the util-linux
> package so that if /etc/mtab is a symbolic link (to a location outside
> of /proc) then mount accesses mtab at the target of the symbolic link.
I have discovered a problem with the patch I posted here. With the
patch applied, umount aborts if it is called without "-n" and the mtab
file is not writable. This is different from the current behavior of
the umount program and, I have discovered, there are scripts out there
that run umount without "-n" when the root filesystem is mounted
read-only. So I have changed the patch to make umount not abort if
mtab is not writable and "-n" is not specified.
Get the updated patch at:
http://panopticon.csustan.edu/thood/readonly-root.html
--
Thomas Hood
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