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--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Workaround for me was to reinstall gsettings-desktop-schemas:

# apt-get reinstall gsettings-desktop-schemas

I have circulated this rescue information to debian-devel and debian-users.

Cheers,
Ash.


-------- Forwarded Message --------
Subject: Fwd: Fix for missing gsettings desktop schemas on unstable
Date: Thu, 29 Feb 2024 12:03:11 +1300
From: Ash Joubert <ash@transient.nz>
To: debian-devel@lists.debian.org

I know the time_t transition is in progress but there could have been a
nicer experience for users on unstable:

Feb 29 10:31:30 ripley systemd[914]: Starting at-spi-dbus-bus.service - Accessibility services bus...
Feb 29 10:31:30 ripley at-spi-bus-laun[984]: Cannot get the default GSettingsSchemaSource - is the gsettings-desktop-schemas package installed?
Feb 29 10:31:30 ripley systemd[914]: at-spi-dbus-bus.service: Main
process exited, code=killed, status=5/TRAP
Feb 29 10:31:30 ripley systemd[914]: at-spi-dbus-bus.service: Failed
with result 'signal'.
Feb 29 10:31:30 ripley kernel: traps: at-spi-bus-laun[984] trap int3 ip:7f46709b4587 sp:7ffea37840b0 error:0 in libglib-2.0.so.0.7800.4[7f4670970000+99000]
Feb 29 10:31:30 ripley systemd[914]: Failed to start
at-spi-dbus-bus.service - Accessibility services bus.

rednotebook just refused to start!

Cheers,
Ash.


-------- Forwarded Message --------
Subject: Fix for missing gsettings desktop schemas on unstable
Date: Thu, 29 Feb 2024 11:56:48 +1300
From: Ash Joubert <ash@transient.nz>
To: debian-user@lists.debian.org

There is a huge transition underway on unstable to migrate to 64-bit
time_t. After upgrading to the new libglib2.0-0t64, nothing could find gsettings desktop schemas, breaking applications like rednotebook and
reportbug (lol), and after a reboot, stopping services like at-spi from starting, causing huge timeouts at system and application start.

A workaround that worked for me was to reinstall gsettings-desktop-schemas:

# apt-get reinstall gsettings-desktop-schemas
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not
upgraded.
Need to get 660 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://ftp.debian.org/debian sid/main amd64
gsettings-desktop-schemas all 46~beta-3 [660 kB]
Fetched 660 kB in 2s (431 kB/s)
(Reading database ... 300005 files and directories currently installed.) Preparing to unpack .../gsettings-desktop-schemas_46~beta-3_all.deb ... Unpacking gsettings-desktop-schemas (46~beta-3) over (46~beta-3) ...
Setting up gsettings-desktop-schemas (46~beta-3) ...
Processing triggers for libglib2.0-0t64:amd64 (2.78.4-2) ...

Cheers,

--
Ash Joubert (they/them) <ash@transient.nz>
Director / Game Developer
Transient Software Limited <https://transient.nz/>
New Zealand

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

To: 1065022@bugs.debian.org
To: debian-devel@lists.debian.org (debian-devel@lists.debian.org)

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--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Thu, Feb 29, 2024 at 06:53:56AM +0100, Paul Gevers wrote:

On 29-02-2024 4:47 a.m., Christoph Anton Mitterer wrote:

@d-d:
- How can it happen that purge *t64 packages and at the same time install
the previous package, and then the so file is missing?
I mean it's clear that they use the same name, but shouldn't DPKG handle
the cleanly?

Well, officially downgrading isn't supported (although it typically works) *and* losing files is one of the problems of our merged-/usr solution (see [1]). I *suspect* this might be the cause. We're working hard (well, helmut is) to protect us and our users from loosing files on upgrades. We don't protect against downgrades.

Obviously there might be issues, but you are running unstable *during* a transition. You have to expect some troubles. Thanks for the information, let's see if this is a real issue or not.

Furthermore, this is a downgrade from a replacing package to a replaced package. Unless you also --reinstall the package at the end, missing files
are quite to be expected.

--
Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer https://www.debian.org/ slangasek@ubuntu.com vorlon@debian.org

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Processing control commands:

retitle -1 libglib2.0-0t64: transition from libglib2.0-0 breaks GSettings, GIO modules

Bug #1065022 [libglib2.0-0t64] libglib2.0-0t64: t64 transition breaks the system
Changed Bug title to 'libglib2.0-0t64: transition from libglib2.0-0 breaks GSettings, GIO modules' from 'libglib2.0-0t64: t64 transition breaks the system'.

--
1065022: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1065022
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Wed, 2024-02-28 at 21:57 -0800, Steve Langasek wrote:

Furthermore, this is a downgrade from a replacing package to a
replaced
package. Unless you also --reinstall the package at the end, missing
files
are quite to be expected.

Shouldn't that case be something that DPKG could detect and either warn
or automatically re-install... or do it in the right order (first
purge, that installed) and thus prevent the replaced files from being
deleted?

Thanks,
Chris.

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On Thu, 29 Feb 2024 at 08:40:28 -0300, Leandro Cunha wrote:

Jeremy uploaded glib 2.0 to experimental which fixes such problems

libglib2.0-0t64 in experimental does not contain any changes that would intentionally fix this.

Upgrading to the experimental libglib2.0-0t64 probably fixes this as a side-effect, but if it does, then reinstalling the unstable libglib2.0-0t64 would have the same effect as upgrading to experimental.

smcv

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On Thu, 2024-02-29 at 06:53 +0100, Paul Gevers wrote:

Well, officially downgrading isn't supported (although it typically
works) *and* losing files is one of the problems of our merged-/usr
solution (see [1]). I *suspect* this might be the cause. We're
working
hard (well, helmut is) to protect us and our users from loosing files
on
upgrades. We don't protect against downgrades.

Obviously there might be issues, but you are running unstable
*during* a
transition. You have to expect some troubles. Thanks for the
information, let's see if this is a real issue or not.

Well I didn't mean to complain :-)

As you said, usually downgrades (well rather: purge + install the old
package, here) work,... it's just this time, that it didn't because of
what Simon explained in #1065022 and it took me quite a while to
realise that re-installing solved the issue.

That plus the vanished lib files and that probably more people might be affected by the issue, made me think that it wouldn't harm to CC d-d :)

Cheers,
Chris.

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Control: tag -1 pending

Hello,

Bug #1065022 in glib2.0 reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/gnome-team/glib/-/commit/451ed4fd133f4cac0b1530cbba2a63a18c6543e1

------------------------------------------------------------------------ d/libglib2.0-0t64.preinst: Remove libglib2.0-0 postrm to avoid file loss

During the migration from libglib2.0-0 to libglib2.0-0t64, the package
that is responsible for "owning" /usr/lib/*/gio/modules/giomodule.cache
and /usr/share/glib-2.0/schemas/gschemas.compiled changed from
libglib2.0-0 to libglib2.0-0t64. Because dpkg does not have an equivalent
of RPM's %ghost files, the ownership of these files is managed by social convention rather than by the package management system.

Unfortunately, libglib2.0-0's postrm as shipped in Debian releases from
2010 to the present is not aware of the possibility that another binary
package might need to take over responsibility for those files, and so
will remove both files during purge (and giomodules.cache also during
remove) in accordance with the requirement that installing and then
removing and purging a package must not leave unowned files behind.
This causes most applications that depend on GSettings schemas to crash
with an assertion failure, until the next time the glib-compile-schemas
trigger happens to be run; it will also cause functionality loss for applications that depend on GIO modules.

To disarm the problematic maintainer script, delete it during the new
package's preinst. This is (probably) a Policy violation, but seems like
the least-bad exit strategy from the unacceptable situation we have
found ourselves in.

A subsequent commit will improve the postrm so that if we find that we
need to migrate from libglib2.0-0t64 to libglib2.0-0xyz or libglib-2.0-0
at some point in the future, similar efforts will not be needed.

Closes: #1065022 ------------------------------------------------------------------------

(this message was generated automatically)
--
Greetings

https://bugs.debian.org/1065022

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Processing control commands:

tag -1 pending

Bug #1065022 [libglib2.0-0t64] libglib2.0-0t64: transition from libglib2.0-0 breaks GSettings, GIO modules
Added tag(s) pending.

--
1065022: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1065022
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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