Dear Stefan, first of all thanks for having suggested some path to follow.
See here:
######################################################## root@noc /var/log/apt # apt full-upgrade -d Reading package lists... Done Building dependency tree Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: libx2go-log-perl : Depends: x2goserver-common (>= 4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is installed libx2go-server-db-perl : Depends: x2goserver-common (>= 4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is installed libx2go-server-perl : Depends: libx2go-log-perl (< 4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is installed Depends: libx2go-server-db-perl (< 4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). root@noc /var/log/apt # ########################################################
So that is a dead end. And "apt --fix-broken install" is just the same:
######################################################## root@noc /var/log/apt # apt --fix-broken install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... failed. The following packages have unmet dependencies: libx2go-log-perl : Depends: x2goserver-common (>= 4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is installed libx2go-server-db-perl : Depends: x2goserver-common (>= 4.1.0.4-0~1975~ubuntu20.04.1) but 4.1.0.3-5 is installed libx2go-server-perl : Depends: libx2go-log-perl (< 4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is installed Depends: libx2go-server-db-perl (< 4.1.0.3-5.1~) but 4.1.0.4-0~1975~ubuntu20.04.1 is installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. E: Unable to correct dependencies root@noc /var/log/apt # ########################################################
Now see here:
######################################################## root@noc /home/desktop/Desktop # grep -r x2go /etc/apt/sources.list* /etc/apt/sources.list.d/x2go-ubuntu-stable-focal.list:deb http://ppa.launchpad.net/x2go/stable/ubuntu focal main /etc/apt/sources.list.d/x2go-ubuntu-stable-focal.list:# deb-src http://ppa.launchpad.net/x2go/stable/ubuntu focal main ########################################################
So we're actually using X2Go stock from the Ubuntu repositories.
And with regards to how the mess has happened, history.log was actually/already rotated, and this is what I see, after having grepped /var/log/apt/history.log.1.gz, looking for "x2go" recurrences:
######################################################## Start-Date: 2023-05-31 09:28:30 Commandline: packagekit role='update-packages' Requested-By: desktop (1000) Upgrade: iptables:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), x2goserver-x2goagent:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), openssl:amd64 (1.1.1f-1ubuntu2.18, 1.1.1f-1ubuntu2.19), snapd:amd64 (2.58+20.04, 2.58+20.04.1), libip6tc2:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), libxtables12:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), x2goserver-common:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libx2go-server-perl:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libssl1.1:amd64 (1.1.1f-1ubuntu2.18, 1.1.1f-1ubuntu2.19), libip4tc2:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), tzdata:amd64 (2023c-0ubuntu0.20.04.1, 2023c-0ubuntu0.20.04.2) Remove: libx2go-utils-perl:amd64 (4.1.0.3-5) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2023-05-31 09:28:30
Start-Date: 2023-05-31 09:28:52 Commandline: packagekit role='update-packages' Requested-By: desktop (1000) Upgrade: iptables:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), openssl:amd64 (1.1.1f-1ubuntu2.18, 1.1.1f-1ubuntu2.19), snapd:amd64 (2.58+20.04, 2.58+20.04.1), libip6tc2:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), libxtables12:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), x2goserver-common:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libx2go-server-perl:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libssl1.1:amd64 (1.1.1f-1ubuntu2.18, 1.1.1f-1ubuntu2.19), libip4tc2:amd64 (1.8.4-3ubuntu2, 1.8.4-3ubuntu2.1), tzdata:amd64 (2023c-0ubuntu0.20.04.1, 2023c-0ubuntu0.20.04.2) Remove: libx2go-utils-perl:amd64 (4.1.0.3-5) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2023-05-31 09:28:52
Start-Date: 2023-05-31 09:34:27 Commandline: /usr/sbin/synaptic Requested-By: desktop (1000) Upgrade: x2goserver-x2goagent:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), x2goserver-common:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libx2go-server-perl:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1) Remove: libx2go-utils-perl:amd64 (4.1.0.3-5) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2023-05-31 09:34:27
Start-Date: 2023-05-31 09:43:08 Commandline: apt --fix-broken install Requested-By: desktop (1000) Upgrade: x2goserver-common:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1), libx2go-server-perl:amd64 (4.1.0.3-5, 4.1.0.4-0~1975~ubuntu20.04.1) Remove: libx2go-utils-perl:amd64 (4.1.0.3-5) Error: Sub-process /usr/bin/dpkg returned an error code (1) End-Date: 2023-05-31 09:43:09 ########################################################
In the end: the origin of the problem was caused by Discover automatic updates. I authorized those packages to be updated, and soon after this is what I got:
After first errors - from inside Discover itself - we got this also (the client-side suspension was not effective at all).
And now, if we try to re-connect:
Thanks for further suggestions, if any, and best regards, e.-