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[20050326]
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Playing the pkg upgrade game
After knowing about pkg_chk and pkg_comp for quite some time, I took
some time to look into them yesterday. I started with pkg_chk, which
told me which of my pkgs were outdated, and gave me some commands to
rebuild it, but when I tried to ask it for actions on how to rebuild
a single pkg including depends (gimp), I didn't get anywhere useful,
and decided to return to pkg_chk at a later point.
Looking into pkg_comp was a nice surprise, as this "pkg compiler"
sets up a chroot/sandbox environment to build pkgs in, without
affecting the "normal" system. Having binary sets from the
netbsd-3 branch here, I told it to build pkgs for NetBSD 3.0
(pkg_comp can fake kernel version with ... one of these pkgs
that I've forgotten the name of. libkver. :). Building binary
pkgs works smooth, and I'm going through a whole "pkg_comp build
meta-pkgs/kde3" right now, which makes some nice progress. Mmm, binary
pkgs. :)
It seems that pkg_chk and pkg_comp make a good team to first check
what needs updating, then prepare binary pkgs in a sandbox, remove
outdated pkgs and re-install them from those binary pkgs. Funny
enough, Gavan Underhand wrote
a script to do exactly that!. Maybe this is the ultimate answer
to the ``how do I upgrade pkg XXX and its depends without hosing the
system when something goes wrong''-question? Time will tell!
[Tags: updating]
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