Re: [gentoo-dev] [gentoo-portage-dev] About forcing rebuilds of other packages issue

[Michael Weber]

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On 06/05/2012 02:44 PM, Aaron W. Swenson wrote:

> "There's never anything important in all that text." - Anonymous
> Gentoo User

The bad part is, that even reading of these messages can result in a
breakage. I update a bunch of machines with these steps (maybe we
should place instructions like these on a prominent place).
(this is multi user, multi session).

#preparations
eix-sync
cd /etc/portage
git pull ; [ git stash ; git pull ; git stash pop ; git commit -a ;
git push ]

#on kernel updates
emerge -av1 --nodeps gentoo-sources
cd /usr/src/linux ; zcat /proc/config.gz > .config
make oldconfig
time ( make -j8 && make install_modules && make install &&
	module-rebuild -X rebuild &&
	eclean-kernel -n 2 -x config &&
	grub2-config -o /boot/grub2/grub2.cfg )

#regular packages
emerge -avuND world
dispatch-conf/etc-update
emerge -a --depclean
revdep-rebuild --ignore -- -av
revdep-rebuild --ignore -- -av (second run)

#on xorg-server updates
emerge -av1 $(qlist -IC x11-drivers)

Nice, isn't it?

[1] if you forget the -X on module-rebuild, you might no longer have
the virtualbox-modules version installed in the tree (no packages
satisfy ...). virtualbox does remove old versions real quick.

The fun part comes with non-root users trying to log in:

[2] You've updated nvidia-drivers (kernel module providers in general)
userland and kernel modules, but forget to `rmmod nvidia`, or you
can't without terminating user sessions, it impossible to start new X
servers due to version mismatch between userland and kernel (applies
for virtualbox as well)

[3] You've updated zlib, but failed to recognize it in the emerge -av
output. You get angry reports about broken luatex and inkscape
(imagemagik) because of some nasty zlib abi version mismatch, hidden
from revdep-rebuild.

[5] lafilefixer (funny)
[4] python-updater (rare)
[6] ocaml gets broken after update w/o lablgl rebuild
  https://bugs.gentoo.org/385869

Well, I'm lazy, and do this in the backgound, half asleep.
And I admit that [1] and [2] are my faults, but [3] is very annoying
(just like libdl related stuff) and esp. kernel+module updates take a
lot more than just a few 'REBUILD' packages.

Is there any chance to detect this ZLIB_VERSION problem with
revdep-rebuild (worst case: add a list of possibly broken packages
with tests)?

=====

I understand the urge for `eupdate` but that needs an agreement on
the implementation, and I see some rought edges here, where unattended
script magic most likely fails.

Michael -- half asleep

- --
Gentoo Dev
http://xmw.de/
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