On Mon, 14 Nov 2011 22:09:20 +0000 Wolodja Wentland <babi...@gmail.com> wrote:
> On Mon, Nov 14, 2011 at 15:03 +0000, Richard wrote: > > Hi, > > Playing dangerously with Sid, and I've reached the limit of what it will > > upgrade to > > without some help. > > Nearly everything has a dependency on perl, the perl version has change, so > > how do just upgrade the > > perl base. > > I can't see the equivalent of rpm --nodeps in apt-get, and clean up the > > mess afterwards. > > Just to make this better known to people on the mailing lists as well ... > > Perl is currently in the transition from 5.12 to 5.14 and an overview of this > particular transition [0] can be seen on [1] and of all other transitions on > [2]. It should be quite obvious that the plethora of red in there is bad and > that we strive to paint this page in green. More specifically all reverse > dependencies have to be rebuilt againt the new perl version and uploaded to > sid and this might take a while. > > The best strategy right now is *not* to upgrade perl-base (et al.) to 5.14, > but wait until the transition progressed a bit. The easiest way is probably > to run "(safe-)upgrade" instead of "dist-upgrade" right now and to cherry-pick > other (unrelated, but held) packages directly. > > I can only stress once again that it is of uttermost importance to actually > read and understand the actions that are proposed by apt-get/aptitude ... You > might wonder why I mention this, but we already had a couple of people in > #debian who complained that apt-get removed their kernel. (sic!) > > Furthermore there might still be people who *already* upgraded to the new perl > version and face a horrible mess right now. There are a couple of ways to deal > with this: > > 1. Reinstall stable, consider the lesson to be learnt and work on something > more important > 2. Restore from backups > 3. Downgrade selected packages to either the version in wheezy or the previous > version. This can be done with "dpkg -i", but using aptitude install > foo=1.2.3 or by pinning [3] the packages to a specific version with a > priority >= 1001 followed by a dist-upgrade. (which will actually downgrade > the packages) > 4. Downgrade the complete system to wheezy. The idea is more or less the same > as in 3. only that you downgrade all packages from sid to wheezy. This can > be done by pinning wheezy to a priority >= 1001 as, for example, with the > following /etc/apt/preferences: > > --- snip --- > Package: * > Pin: release a=testing > Pin-Priority: 1001 > --- snip --- > > It should be noted that 3. and 4. are absolutely *unsupported* and might not > work at all. People have, however, successfully downgraded their systems. Liek > always: Make sure that your backups are up-to-date, complete and that you know > how to restore them. > > [0] A transition occurs when changes in a package require alterations to > several other packages which depend on it. To do this, many packages using > the package are updated, either being recompiled or updated to a new > version; packages blocking a transition might be removed from <testing> so > it can complete. Transitions can become very large and complex, involving > tens or even hundreds of packages. > [1] http://release.debian.org/transitions/html/perl5.14.html > [2] http://release.debian.org/transitions/ > [3] http://www.xs4all.nl/~carlo17/howto/debian.html#errata > http://wiki.debian.org/AptPreferences > "man apt_preferences" Thanks for the transition tracker url, I'll watch that closely. I'll be very interested when python 2.7 is finished , I suspect I have some apps that will bork on it. Luckily I didn't get caught with my kernel, just the mailer which was quickly reinstalled. cheers -- Best wishes / 73 Richard Bown e-mail: rich...@g8jvm.com or richard.b...@blueyonder.co.uk nil carborundum a illegitemis ################################################################################## Ham Call G8JVM . OS Debian Wheezy amd64 on a Dual core AMD Athlon 5200, 4 GB RAM Maidenhead QRA: IO82SP38, LAT. 52 39.720' N LONG. 2 28.171 W ( degs mins ) QRV HF + VHF Microwave 23 cms:140W,13 cms:100W,6 cms:10W & 3 cms:5W ################################################################################## -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20111114221916.1d85ee4a@debian
