Re: Splitting /rescue out of base.tgz

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Sep 06, 2019 at 01:53:50PM +0200, Edgar Fuß wrote:
> [Would this better belong to tech-install?]
> 
> I think it may make sense to split /rescue out of base.tgz into a separate set.
> I just rendered a machine unusable during an update because, after having 
> booted into the new kernel, extracting base.tgz failed (/ full), corrupting 
> both bin/sbin and rescue. Tho only thing I had was a shell with whatever is 
> built-in.
> My colleague joked it was time to write a tar parser in shell (to extract 
> /rescue from the base set to somewhere else), but unfortunately, base.tgz 
> is compressed.
> Note that it wouldn't suffice to duplicate /rescue into a separate tgz, 
> it would need to be removed from base.tgz.
> Of course, I could mimic this with args to tar xpzfC base.tgz /.

I've been there too. Now when doing an upgrade I always --exclude rescue
when extracting the sets, and only at the end (and when everything went fine)
I extract only /rescue from base.tgz

Sure, a separate rescue set would make it a bit easier, but that's not a
big deal

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--