The last few days I have done some upgrade testing in Debian, to -see if the upgrade from Lenny to Squeeze will go smoothly. A few bugs -have been discovered and reported in the process -(#585410 in nagios3-cgi, -#584879 already fixed in -enscript and #584861 in -kdebase-workspace-data), and to get a more regular testing going on, I -am working on a script to automate the test.
- -The idea is to create a Lenny chroot and use tasksel to install a -Gnome or KDE desktop installation inside the chroot before upgrading -it. To ensure no services are started in the chroot, a policy-rc.d -script is inserted. To make sure tasksel believe it is to install a -desktop on a laptop, the tasksel tests are replaced in the chroot -(only acceptable because this is a throw-away chroot).
- -A naive upgrade from Lenny to Squeeze using aptitude dist-upgrade -currently always fail because udev refuses to upgrade with the kernel -in Lenny, so to avoid that problem the file /etc/udev/kernel-upgrade -is created. The bug report -#566000 make me suspect -this problem do not trigger in a chroot, but I touch the file anyway -to make sure the upgrade go well. Testing on virtual and real -hardware have failed me because of udev so far, and creating this file -do the trick in such settings anyway. This is a -known -issue and the current udev behaviour is intended by the udev -maintainer because he lack the resources to rewrite udev to keep -working with old kernels or something like that. I really wish the -udev upstream would keep udev backwards compatible, to avoid such -upgrade problem, but given that they fail to do so, I guess -documenting the way out of this mess is the best option we got for -Debian Squeeze.
- -Anyway, back to the task at hand, testing upgrades. This test -script, which I call upgrade-test for now, is doing the -trick:
- -
-#!/bin/sh
-set -ex
-
-if [ "$1" ] ; then
- desktop=$1
-else
- desktop=gnome
-fi
-
-from=lenny
-to=squeeze
-
-exec < /dev/null
-unset LANG
-mirror=http://ftp.skolelinux.org/debian
-tmpdir=chroot-$from-upgrade-$to-$desktop
-fuser -mv .
-debootstrap $from $tmpdir $mirror
-chroot $tmpdir aptitude update
-cat > $tmpdir/usr/sbin/policy-rc.d <<EOF
-#!/bin/sh
-exit 101
-EOF
-chmod a+rx $tmpdir/usr/sbin/policy-rc.d
-exit_cleanup() {
- umount $tmpdir/proc
-}
-mount -t proc proc $tmpdir/proc
-# Make sure proc is unmounted also on failure
-trap exit_cleanup EXIT INT
-
-chroot $tmpdir aptitude -y install debconf-utils
-
-# Make sure tasksel autoselection trigger. It need the test scripts
-# to return the correct answers.
-echo tasksel tasksel/desktop multiselect $desktop | \
- chroot $tmpdir debconf-set-selections
-
-# Include the desktop and laptop task
-for test in desktop laptop ; do
- echo > $tmpdir/usr/lib/tasksel/tests/$test <<EOF
-#!/bin/sh
-exit 2
-EOF
- chmod a+rx $tmpdir/usr/lib/tasksel/tests/$test
-done
-
-DEBIAN_FRONTEND=noninteractive
-DEBIAN_PRIORITY=critical
-export DEBIAN_FRONTEND DEBIAN_PRIORITY
-chroot $tmpdir tasksel --new-install
-
-echo deb $mirror $to main > $tmpdir/etc/apt/sources.list
-chroot $tmpdir aptitude update
-touch $tmpdir/etc/udev/kernel-upgrade
-chroot $tmpdir aptitude -y dist-upgrade
-fuser -mv
-I suspect it would be useful to test upgrades with both apt-get and -with aptitude, but I have not had time to look at how they behave -differently so far. I hope to get a cron job running to do the test -regularly and post the result on the web. The Gnome upgrade currently -work, while the KDE upgrade fail because of the bug in -kdebase-workspace-data
- -I am not quite sure what kind of extract from the huge upgrade logs -(KDE 167 KiB, Gnome 516 KiB) it make sense to include in this blog -post, so I will refrain from trying. I can report that for Gnome, -aptitude report 760 packages upgraded, 448 newly installed, 129 to -remove and 1 not upgraded and 1024MB need to be downloaded while for -KDE the same numbers are 702 packages upgraded, 507 newly installed, -193 to remove and 0 not upgraded and 1117MB need to be downloaded
- -I am very happy to notice that the Gnome desktop + laptop upgrade -is able to migrate to dependency based boot sequencing and parallel -booting without a hitch. Was unsure if there were still bugs with -packages failing to clean up their obsolete init.d script during -upgrades, and no such problem seem to affect the Gnome desktop+laptop -packages.
+Jeg registrerer med vond smak i munnen at Den Norske Dataforening +hedrer +overvåkning av barn med Rosingsprisen for kreativitet i år. Jeg +er glad jeg nå er meldt ut av DND.
+ +à elektronisk overvåke sine barn er ikke å gjøre dem en tjeneste, +men et overgrep mot individer i utvikling som bør læres opp til å ta +egne valg.
+ +For å sitere Datatilsynets nye leder, Bjørn Erik Thon, i +et intervju +med Computerworld Norge:
+ ++- For alle som har barn, meg selv inkludert, er førstetanken at det +hadde vært fint å vite hvor barnet sitt er til enhver tid. Men ungene +har ikke godt av det. De er små individer som skal søke rundt og finne +sine små gjemmesteder og utvide horisonten, uten at foreldrene ser dem +i kortene. Det kan være fristende, men jeg ville ikke gått inn i +dette. ++ +
Det er skremmende å se at DND mener en tjeneste som legger opp til +slike overgrep bør hedres. à flytte oppveksten for barn inn i en +virtuell +Panopticon er et +grovt overgrep og vil gjøre skade på barnenes utvikling, og foreldre +burde tenke seg godt om før de gir etter for sine instinkter her.
+ +Blipper-tjenesten får meg til å tenke på bøkene til +John Twelve +Hawks, som forbilledlig beskriver hvordan et totalitært +overvåkningssamfunn bygges sakte men sikkert rundt oss, satt sammen av +gode intensjoner og manglende bevissthet om hvilke prinsipper et +liberalt demokrati er fundamentert på. Jeg har hatt stor glede av å +lese alle de tre bøkene.
