Hi Meanwhile I have also tried to install Koha 22.05.03 (instead of Koha 21.11.10) on a new machine with Debian 11 but it gave me the same error concerning package "rabbitmq-server". Is it really true that it is not possible to install these two revisions on Debian 11? Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik@adminkuhn.ch · W www.adminkuhn.ch Am 03.08.22 um 14:50 schrieb Michael Kuhn:

Hi

I've just run into problems when trying to install Koha 21.11.10 on a newly installed machine with Debian GNU/Linux 11.

1. This is the content of file "/etc/apt/sources.list.d/koha.list":

deb http://debian.koha-community.org/koha 21.11 main

2. When starting the installation of Koha "apt-get update" gave:

OK:1 http://asi-fs-n.contabo.net/debian bullseye InRelease OK:2 http://asi-fs-n.contabo.net/debian bullseye-updates InRelease OK:3 http://security.debian.org/debian-security bullseye-security InRelease Holen:4 http://debian.koha-community.org/koha 21.11 InRelease [69,8 kB] Holen:5 http://debian.koha-community.org/koha 21.11/main amd64 Packages [25,6 kB] Es wurden 95,4 kB in 1 s geholt (93,2 kB/s). Paketlisten werden gelesen… Fertig

2. Unfortunately the installation of Koha ended with the following:

... Fehler traten auf beim Bearbeiten von:  rabbitmq-server  koha-common needrestart is being skipped since dpkg has failed E: Sub-process /usr/bin/dpkg returned an error code (1)

3. However, now "apt-get update" only gives:

OK:1 http://asi-fs-n.contabo.net/debian bullseye InRelease OK:2 http://asi-fs-n.contabo.net/debian bullseye-updates InRelease OK:3 http://security.debian.org/debian-security bullseye-security InRelease OK:4 http://debian.koha-community.org/koha 21.11 InRelease Paketlisten werden gelesen… Fertig

4. When trying to complete the installation the following errors appear:

$ sudo apt-get install koha-common Reading package lists... Done Building dependency tree... Done Reading state information... Done koha-common is already the newest version (21.11.10-1). 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Setting up rabbitmq-server (3.8.9-3) ... Job for rabbitmq-server.service failed because the control process exited with error code. See "systemctl status rabbitmq-server.service" and "journalctl -xe" for details. invoke-rc.d: initscript rabbitmq-server, action "start" failed. * rabbitmq-server.service - RabbitMQ Messaging Server      Loaded: loaded (/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: enabled)      Active: activating (auto-restart) (Result: exit-code) since Wed 2022-08-03 14:30:23 CEST; 11ms ago     Process: 3343 ExecStart=/usr/lib/rabbitmq/bin/rabbitmq-server (code=exited, status=1/FAILURE)    Main PID: 3343 (code=exited, status=1/FAILURE)         CPU: 5.506s

Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: rabbitmq-server.service: Failed with result 'exit-code'. Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: Failed to start RabbitMQ Messaging Server. Aug 03 14:30:23 bib-katalog.sintiundroma.de systemd[1]: rabbitmq-server.service: Consumed 5.506s CPU time. dpkg: error processing package rabbitmq-server (--configure):  installed rabbitmq-server package post-installation script subprocess returned error exit status 1 dpkg: dependency problems prevent configuration of koha-common:  koha-common depends on rabbitmq-server; however:   Package rabbitmq-server is not configured yet.

dpkg: error processing package koha-common (--configure):  dependency problems - leaving unconfigured Errors were encountered while processing:  rabbitmq-server  koha-common E: Sub-process /usr/bin/dpkg returned an error code (1)

5. How can I complete this incomplete installation?

Best wishes: Michael