[Bug 2152571] Re: Ubuntu release upgrade from 22.04 to 24.04 failed.

[Daniel Tang]

The first error message was:
```
Removing ibus (1.5.26-4) ...
dconf: symbol lookup error: /lib/x86_64-linux-gnu/libdconf.so.1: undefined symbol: g_assertion_message_cmpint
dpkg: error processing package ibus (--remove):
 installed ibus package pre-removal script subprocess returned error exit status 127
dpkg: too many errors, stopping
Errors were encountered while processing:
 ibus
```

The root cause is that dconf was unpacked early:
```
Preparing to unpack .../1-dconf-cli_0.40.0-4ubuntu0.1_amd64.deb ...
Unpacking dconf-cli (0.40.0-4ubuntu0.1) over (0.40.0-3ubuntu0.1) ...
Preparing to unpack .../2-dconf-gsettings-backend_0.40.0-4ubuntu0.1_amd64.deb ...
Unpacking dconf-gsettings-backend:amd64 (0.40.0-4ubuntu0.1) over (0.40.0-3ubuntu0.1) ...
Preparing to unpack .../3-dconf-service_0.40.0-4ubuntu0.1_amd64.deb ...
Unpacking dconf-service (0.40.0-4ubuntu0.1) over (0.40.0-3ubuntu0.1) ...
Preparing to unpack .../4-libdconf1_0.40.0-4ubuntu0.1_amd64.deb ...
Unpacking libdconf1:amd64 (0.40.0-4ubuntu0.1) over (0.40.0-3ubuntu0.1) ...
```

but libglib2.0-0t64 was not unpacked at the same time, causing errors like:
```
dependency problems prevent configuration of libcamel-1.2-64t64:amd64:
 libcamel-1.2-64t64:  depends on libglib2.0-0t64 (>= 2.64.0); however:
  Package libglib2.0-0t64 is not installed.
```

ibus properly Depends: libglib2.0-0t64, so the prerm/postrm/something
script should've worked. But libdconf1 or something merely Depends:
libglib2.0-0t64 and doesn't Pre-Depends: libglib2.0-0t64, and maybe it
should.

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https://bugs.launchpad.net/bugs/2152571

Title:
  Ubuntu release upgrade from 22.04 to 24.04 failed.

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Ubuntu release upgrade from 22.04 to 24.04 failed.

  I expected the release upgrade to succeed.

  A zip file of the /var/log/dist-upgrade/ directory is attached.

  lsb_release -a
  LSB Version:	core-11.1.0ubuntu4-noarch:security-11.1.0ubuntu4-noarch
  Distributor ID:	Ubuntu
  Description:	Ubuntu 22.04.5 LTS
  Release:	22.04
  Codename:	jammy

  
  Please let me know if you need anything further. I have a few dozen machines which need to be upgraded to v24.04 soon.

  Thank you,
  -David

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