[arch-general] [arch-dev-public] [ANNOUNCE] filesystem-2011.12 manual intervention required

[Keshav P R]

On Mon, Dec 19, 2011 at 23:21, Tom Gundersen <teg at jklm.no> wrote:

> On Mon, Dec 19, 2011 at 6:40 PM, Dave Reisner <d at falconindy.com> wrote:
> > On Mon, Dec 19, 2011 at 12:38:11PM -0500, Dave Reisner wrote:
> >> On Mon, Dec 19, 2011 at 05:57:51PM +0100, Tom Gundersen wrote:
> >> > Hi guys,
> >> >
> >> > We are finalizing the move to libmonut based mount, paving the way for
> >> > read-only root, by moving /etc/mtab into the filesystem package. This
> >> > used to be a dynamic file generated at boot and updated at runtime,
> >> > but as of the last initscripts package it was simply a symlink to
> >> > /proc/self/mounts.
> >> >
> >> > This symlink was created at boot (at the same place the old mtab was
> >> > generated), but this turned out to cause a few problems.
> >> >
> >> > Sadly, moving the symlink to 'filesystem' requires user intervention,
> >> > which I will write a news item about. The essential message will be:
> >> >
> >> > "Please upgrade the filesystem package using 'pacman -Sf filesystem'
> >> > in order to overwrite /etc/mtab."
> >>
> >> I'd prefer to ask people to rm /etc/mtab and -Su, rather than advertise
> >> -f (which has been removed in pacman-git, leaving only --force).
> >>
> >> > Please test and signoff, as I'd like to make the move to core rather
> quickly.
> >> >
> >> > Cheers,
> >> >
> >> > Tom
> >
> > Gah.. and of course saying that, and then going and doing it -- the
> > missing mtab makes pacman choke on diskspace checking. --force might be
> > the easier option here...
>
> Yeah, I'll make this clear in the news item. --force is always,
> always, always wrong. Except for this one time, when it is the only
> solution ;-)
>
> -t
>

Sorry to interrupt guys but can't this be done in pre_upgrade function in
.INSTALL script of the package?

Quote: man PKGBUILD

 pre_install
           Run right before files are extracted. One argument is passed:
new package full version string.

pre_upgrade
           Run right before files are extracted. Two arguments are passed
in this order: new package full version string, old package full version
string.

Regards.

Keshav