Bug#3149: upgrading base truncates utmp

[bruce@pixar.com (Bruce Perens)]

> After upgrading base or a running system, /var/run/utmp is a zero length
> file.  I think it should not be part of the package - instead, postinst
> should just touch it to make sure it exists.  Same goes for wtmp.

And perhaps /etc/passwd and /etc/group .

> Also, I think the link /var/log/wtmp -> ../run/wtmp is wrong - wtmp
> should be in /var/log, and the link is not needed.  Or is there
> a newer version of FSSTND where they moved these files again?

Wtmp but not utmp?

> What is /tmp/base.postinst for?

The base disk creation script runs it. I think it may not be a security
problem because dpkg moves it out of the way before replacing it.
There may be a small race window there.

	Thanks

	Bruce
--
Bruce Perens AB6YM          Bruce@Pixar.com            http://www.hams.com/