Hi all, so on Debian 9 this worked fine…
sudo systemctl stop zammad && sudo apt update && sudo apt upgrade
but this held back zammad
sudo systemctl stop zammad && sudo apt-get update && sudo apt-get upgrade
apt and not apt-get seems to be the trick…
How can I install “imlib2” or “libimlib2”? My apt-get won’t find these packages.
What OS are you running? Does sudo apt search imlib2 not work?
I get this result on Debian 9
libimlib2/stable 1.4.8-1 amd64
image loading, rendering, saving library
I’m running ubuntu 18.04.2 LTS Server.
sudo apt search imlib2
shows:
zammadadmin@zammad:~$ sudo apt search imlib2
Sortierung... Fertig
Volltextsuche... Fertig
Then:
zammadadmin@zammad:~$ sudo apt install imlib2
Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut.
Statusinformationen werden eingelesen.... Fertig
E: Paket imlib2 kann nicht gefunden werden.Ubuntu and Debian require libimlib2 as dependency.
Please don’t forget to refresh your sources by apt-get update.
Also ensure that all your repos are active. If you don’t have the default shipped repos this might fail.
Also note: libimlib2 is not provided by the Zammad-Repository.
This is an OS based issue that we cannot handle, I am sorry.
We ensured that it is working on CentOS, Debian, Ubuntu and openSuSe and I verified that again yesterday.
It has to be about your repositories.
Thank you all. My problem is solved. I had to add the multiverse repo and then install the packages libimlib2 and libimlib2-dev
sudo apt-add-repository multiverse && sudo apt-get update
apt-get install libimlib2 libimlib2-dev
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I thnik Sir much better if we can add this in documentation in how to update zammad if encountered this kind of problem while updating… thank you
after to install the apt-get install libimlib2 libimlib2-dev
yes zammad shows that upgraded to 2.9x but the features like preview in attachment is not working and cant find the Timezone under Branding
Are you sure zammad is on version 2.9? Look in settings -> version
Yes IM sure. its 2.9 but the features of the 2.9 like I mentioned are not found
Have you restarted all of your application services after the update?
Sir @thorsteneckel thank you for the reply.
Yes Sir I restarted below services.
sudo systemctl restart zammad
sudo systemctl restart zammad-web
sudo systemctl restart zammad-worker
sudo systemctl restart zammad-websocket
also rebuild searchindex
and run asset:precompile
and Sir @thorsteneckel restarted the machine.
Not like before that only need the command is apt-get update and upgrade I successfully update zammad to 2.7 to 2.8 but now need to install the apt-get install libimlib2 libimlib2-dev to update the zammad to 2.9
and I also encountered this error after the update.
Failed to run scheduled job ‘Generate user based stats.’. Cause: Failed to run Stats.generate after 10 tries #<RuntimeError: No settings with area ‘Dashboard::Stats’ defined
Looks like your update wen’t wrong: Data is missing and migrations weren’t executed. I’m sorry to say but the only thing we can offer from here is to help you in the scope of our commercial services. It wouldn’t be fair to others to spend our limited “community time” to an issue affecting only a single installation.
The only recommendation I can give you right now is to restore your latest backup and redo the update. Good luck and more power 
thank you Sir, will try from fresh installed/updated ubuntu
Thank you and More power
This did the trick for me.
Thanks a lot! 
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than please hit the like button
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Thank you for the update and more power…
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