1

i am currently trying to do-release-upgrade an Ubuntu 17.10 install to 18.04.6 LTS via 'sudo do-release-upgrade'. Sadly, the process does not finish, as it return the following very quickly:

(appstreamcli:26495): GLib-CRITICAL **: g_variant_builder_end: assertion '!GVSB(builder)->uniform_item_types || GVSB(builder)->prev_item_type != NULL || g_variant_type_is_definite (GVSB(builder)->type)' failed

(appstreamcli:26495): GLib-CRITICAL **: g_variant_new_variant: assertion 'value != NULL' failed


(appstreamcli:26495): GLib-ERROR **: g_variant_new_parsed: 11-13:invalid GVariant format string
Trace/breakpoint trap (core dumped)


Fehler während der Aktualisierung


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E:Problem executing scripts APT::Update::Post-Invoke-Success 'if
/usr/bin/test -w /var/cache/app-info -a -e /usr/bin/appstreamcli;
then appstreamcli refresh-cache > /dev/null; fi', E:Sub-process
returned an error code

Having stumbled upon similar questions, i tried to reinstall and even purge appstreamcli and libappstream4, however to no avail. Interestingly, both sudo apt-get upgrade and sudo apt-get upgrade work without problems (although no more upgrades can be found due to the end-of-support I guess).

Here is also the output from

sudo apt-show-versions appstream

appstream:amd64 not installed
appstream:i386 not installed

and

sudo apt-show-versions libappstream4

libappstream4:amd64/artful 0.11.3-1 uptodate
libappstream4:i386 not installed

Happy to here your thoughts on how to tackle this - thanks in advance!

Edit: Here is my login screen, prompting me to do-release-upgrade screenshot

ledertasche
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1 Answers1

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I had the same problem. Old Ubuntu 17.10 installation with the same exact error. I read in various articles that appstreamcli is not needed for the upgrade and ultimately i used the solution suggested in

https://unix.stackexchange.com/questions/464445/problem-with-appstreamcli-when-running-apt-update

to simply go to to /etc/apt/apt.conf.d/50appstream and comment out the APT::Update::Post-Invoke-Success function with sudo permissions. During the Upgrade appstreamcli was updated and the change i made to the 50appstream file was noticed and offered to be replaced with a new one which i accepted. The Upgrade went trough without problems and im now on 18.04.6 LTS :) Hope this helps

Nep
  • 36