Just want to give a heads up that manual unpack followed by apt install -f still crashes, however the VM automatically rebooted this time (instead of remaining dead) and I was able to proceed with usual apt update afterwards with no further issues.
root@web1:~# curl -LO https://launchpad.net/ubuntu/+archive/primary/+files/libjson-c2_0.11-4ubuntu2.2_amd64.deb % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 21858 100 21858 0 0 10273 0 0:00:02 0:00:02 --:--:-- 164k root@web1:~# dpkg --unpack libjson-c2_0.11-4ubuntu2.2_amd64.deb (Reading database ... 39096 files and directories currently installed.) Preparing to unpack libjson-c2_0.11-4ubuntu2.2_amd64.deb ... Unpacking libjson-c2:amd64 (0.11-4ubuntu2.2) over (0.11-4ubuntu2.2) ... Processing triggers for libc-bin (2.23-0ubuntu11) ... root@web1:~# reboot root@web1:~# logout [root@redacted ~]# vzctl enter 040199a0-e959-4428-87e6-76dd3b26262e entered into CT root@web1:/# apt install -f Reading package lists... Done Building dependency tree... 50% [1]+ Stopped apt install -f Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 15 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up libjson-c2:amd64 (0.11-4ubuntu2.2) ... Processing triggers for libc-bin (2.23-0ubuntu11) ... Got signal 9 [root@redacted ~]# -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878723 Title: Kernel panic when used with upstart after 0.11-4ubuntu2.1 update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/json-c/+bug/1878723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs