X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/e13115f1c3ad45cccad9905c6eb693f4368bae0a..2e43f23a0733cf8dc540987733770d1e6139d63e:/blog/archive/2010/07/07.rss diff --git a/blog/archive/2010/07/07.rss b/blog/archive/2010/07/07.rss index 361b64b519..986b5ca2f5 100644 --- a/blog/archive/2010/07/07.rss +++ b/blog/archive/2010/07/07.rss @@ -11,8 +11,7 @@ http://people.skolelinux.org/pere/blog/Caching_password__user_and_group_on_a_roaming_Debian_laptop.html http://people.skolelinux.org/pere/blog/Caching_password__user_and_group_on_a_roaming_Debian_laptop.html Thu, 1 Jul 2010 11:40:00 +0200 - -<p>For a laptop, centralized user directories and password checking is + <p>For a laptop, centralized user directories and password checking is a bit troubling. Laptops are typically used also when not connected to the network, and it is vital for a user to be able to log in or unlock the screen saver also when a central server is unavailable. @@ -218,8 +217,7 @@ please contact us on debian-edu@lists.debian.org.</p> http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__apt_vs_aptitude_with_the_Gnome_desktop.html http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades__apt_vs_aptitude_with_the_Gnome_desktop.html Sat, 3 Jul 2010 23:55:00 +0200 - -<p>Here is a short update on my <a + <p>Here is a short update on my <a href="http://people.skolelinux.org/~pere/debian-upgrade-testing/">my Debian Lenny->Squeeze upgrade testing</a>. Here is a summary of the difference for Gnome when it is upgraded by apt-get and aptitude. I'm @@ -316,11 +314,10 @@ the difference somewhat. MS Word krøller det til for politiet? - http://people.skolelinux.org/pere/blog/MS_Word_kr__ller_det_til_for_politiet_.html - http://people.skolelinux.org/pere/blog/MS_Word_kr__ller_det_til_for_politiet_.html + http://people.skolelinux.org/pere/blog/MS_Word_kr_ller_det_til_for_politiet_.html + http://people.skolelinux.org/pere/blog/MS_Word_kr_ller_det_til_for_politiet_.html Thu, 8 Jul 2010 14:00:00 +0200 - -<p>De siste dagene har Aftenposten + <p>De siste dagene har Aftenposten <a href="http://www.aftenposten.no/nyheter/iriks/article3718597.ece">fortalt</a> <a href="http://www.aftenposten.no/nyheter/iriks/article3724249.ece">hvordan</a> politet har brukt skriveverktøy som ikke håndterer arabisk tekst og @@ -348,8 +345,7 @@ offentlig myndighet?</p> http://people.skolelinux.org/pere/blog/jXplorer__a_very_nice_LDAP_GUI.html http://people.skolelinux.org/pere/blog/jXplorer__a_very_nice_LDAP_GUI.html Fri, 9 Jul 2010 12:55:00 +0200 - -<p>Since + <p>Since <a href="http://people.skolelinux.org/pere/blog/LUMA__a_very_nice_LDAP_GUI.html">my last post</a> about available LDAP tools in Debian, I was told about a LDAP GUI that is even better than luma. The java application @@ -371,8 +367,7 @@ and remove the failing query. Nothing big, but very annoying.</p> http://people.skolelinux.org/pere/blog/Idea_for_storing_LTSP_configuration_in_LDAP.html http://people.skolelinux.org/pere/blog/Idea_for_storing_LTSP_configuration_in_LDAP.html Sun, 11 Jul 2010 22:00:00 +0200 - -<p>Vagrant mentioned on IRC today that ltsp_config now support + <p>Vagrant mentioned on IRC today that ltsp_config now support sourcing files from /usr/share/ltsp/ltsp_config.d/ on the thin clients, and that this can be used to fetch configuration from LDAP if Debian Edu choose to store configuration there.</p> @@ -454,8 +449,7 @@ personal home page over at redhat.com.</p> http://people.skolelinux.org/pere/blog/Combining_PowerDNS_and_ISC_DHCP_LDAP_objects.html http://people.skolelinux.org/pere/blog/Combining_PowerDNS_and_ISC_DHCP_LDAP_objects.html Wed, 14 Jul 2010 23:45:00 +0200 - -<p>For a while now, I have wanted to find a way to change the DNS and + <p>For a while now, I have wanted to find a way to change the DNS and DHCP services in Debian Edu to use the same LDAP objects for a given computer, to avoid the possibility of having a inconsistent state for a computer in LDAP (as in DHCP but no DNS entry or the other way @@ -520,8 +514,7 @@ please contact us on debian-edu@lists.debian.org.</p> http://people.skolelinux.org/pere/blog/What_are_they_searching_for___PowerDNS_and_ISC_DHCP_in_LDAP.html http://people.skolelinux.org/pere/blog/What_are_they_searching_for___PowerDNS_and_ISC_DHCP_in_LDAP.html Sat, 17 Jul 2010 21:00:00 +0200 - -<p>This is a + <p>This is a <a href="http://people.skolelinux.org/pere/blog/Time_for_new__LDAP_schemas_replacing_RFC_2307_.html">followup</a> on my <a href="http://people.skolelinux.org/pere/blog/Idea_for_a_change_to_LDAP_schemas_allowing_DNS_and_DHCP_info_to_be_combined_into_one_object.html">previous @@ -840,8 +833,7 @@ auxiliary object class.</p> http://people.skolelinux.org/pere/blog/OpenStreetmap_one_step_closer_to_having_routing_on_its_front_page.html http://people.skolelinux.org/pere/blog/OpenStreetmap_one_step_closer_to_having_routing_on_its_front_page.html Sun, 18 Jul 2010 16:45:00 +0200 - -<p>Thanks to + <p>Thanks to <a href="http://feedproxy.google.com/~r/Opengeodata/~3/wUTCzDZk3lc/project-of-the-week-which-way-home">todays opengeodata blog entry</a>, I just discovered that the OpenStreetmap.org site have gotten @@ -862,11 +854,10 @@ www.openstreetmap.org front page.</p> Digitale restriksjonsmekanismer fikk meg til å slutte å kjøpe musikk - http://people.skolelinux.org/pere/blog/Digitale_restriksjonsmekanismer_fikk_meg_til____slutte____kj__pe_musikk.html - http://people.skolelinux.org/pere/blog/Digitale_restriksjonsmekanismer_fikk_meg_til____slutte____kj__pe_musikk.html + http://people.skolelinux.org/pere/blog/Digitale_restriksjonsmekanismer_fikk_meg_til___slutte___kj_pe_musikk.html + http://people.skolelinux.org/pere/blog/Digitale_restriksjonsmekanismer_fikk_meg_til___slutte___kj_pe_musikk.html Thu, 22 Jul 2010 23:50:00 +0200 - -<p>For mange år siden slutte jeg å kjøpe musikk-CDer. Årsaken var at + <p>For mange år siden slutte jeg å kjøpe musikk-CDer. Årsaken var at musikkbransjen var godt i gang med å selge platene sine med DRM som gjorde at jeg ikke fikk spilt av musikken jeg kjøpte på utstyret jeg hadde tilgjengelig, dvs. min datamaskin. Det var umulig å se på en @@ -897,8 +888,7 @@ Kommer neppe til å ta i bruk Blueray, og ei heller de nye DRM-greiene http://people.skolelinux.org/pere/blog/One_step_closer_to_single_signon_in_Debian_Edu.html http://people.skolelinux.org/pere/blog/One_step_closer_to_single_signon_in_Debian_Edu.html Sun, 25 Jul 2010 10:00:00 +0200 - -<p>The last few months me and the other Debian Edu developers have + <p>The last few months me and the other Debian Edu developers have been working hard to get the Debian/Squeeze based version of Debian Edu/Skolelinux into shape. This future version will use Kerberos for authentication, and services are slowly migrated to single signon, @@ -941,8 +931,7 @@ please contact us on debian-edu@lists.debian.org.</p> http://people.skolelinux.org/pere/blog/First_Debian_Edu_test_release__alpha0__based_on_Squeeze_is_released.html http://people.skolelinux.org/pere/blog/First_Debian_Edu_test_release__alpha0__based_on_Squeeze_is_released.html Tue, 27 Jul 2010 17:45:00 +0200 - -<p>I just posted this announcement culminating several months of work + <p>I just posted this announcement culminating several months of work with the next Debian Edu release. Not nearly done, but one major step completed.</p> @@ -1056,5 +1045,61 @@ http://wiki.debian.org/DebianEdu/HowTo/ReportBugsInBugzilla</p> + + Circular package dependencies harms apt recovery + http://people.skolelinux.org/pere/blog/Circular_package_dependencies_harms_apt_recovery.html + http://people.skolelinux.org/pere/blog/Circular_package_dependencies_harms_apt_recovery.html + Tue, 27 Jul 2010 23:50:00 +0200 + <p>I discovered this while doing +<a href="http://people.skolelinux.org/pere/blog/Automatic_upgrade_testing_from_Lenny_to_Squeeze.html">automated +testing of upgrades from Debian Lenny to Squeeze</a>. A few packages +in Debian still got circular dependencies, and it is often claimed +that apt and aptitude should be able to handle this just fine, but +some times these dependency loops causes apt to fail.</p> + +<p>An example is from todays +<a href="http://people.skolelinux.org/~pere/debian-upgrade-testing//test-20100727-lenny-squeeze-kde-aptitude.txt">upgrade +of KDE using aptitude</a>. In it, a bug in kdebase-workspace-data +causes perl-modules to fail to upgrade. The cause is simple. If a +package fail to unpack, then only part of packages with the circular +dependency might end up being unpacked when unpacking aborts, and the +ones already unpacked will fail to configure in the recovery phase +because its dependencies are unavailable.</p> + +<p>In this log, the problem manifest itself with this error:</p> + +<blockquote><pre> +dpkg: dependency problems prevent configuration of perl-modules: + perl-modules depends on perl (>= 5.10.1-1); however: + Version of perl on system is 5.10.0-19lenny2. +dpkg: error processing perl-modules (--configure): + dependency problems - leaving unconfigured +</pre></blockquote> + +<p>The perl/perl-modules circular dependency is already +<a href="http://bugs.debian.org/527917">reported as a bug</a>, and will +hopefully be solved as soon as possible, but it is not the only one, +and each one of these loops in the dependency tree can cause similar +failures. Of course, they only occur when there are bugs in other +packages causing the unpacking to fail, but it is rather nasty when +the failure of one package causes the problem to become worse because +of dependency loops.</p> + +<p>Thanks to +<a href="http://lists.debian.org/debian-devel/2010/06/msg00116.html">the +tireless effort by Bill Allombert</a>, the number of circular +dependencies +<a href="http://debian.semistable.com/debgraph.out.html">left in Debian +is dropping</a>, and perhaps it will reach zero one day. :)</p> + +<p>Todays testing also exposed a bug in +<a href="http://bugs.debian.org/590605">update-notifier</a> and +<a href="http://bugs.debian.org/590604">different behaviour</a> between +apt-get and aptitude, the latter possibly caused by some circular +dependency. Reported both to BTS to try to get someone to look at +it.</p> + + +