I extracted all the /var/log/apt/history.log.*.gz, and grep'ed through them, these are the only occurences it found:
vaidas@SATELLITE-L855:/var/log/apt$ grep -H shim ./* ./history.log.5:Commandline: apt-get --no-upgrade -o Acquire::gpgv::Options::=--ignore-time-conflict -y install shim-signed ./history.log.5:Install: shim-signed:amd64 (1.38+15+1533136590.3beb971-0ubuntu1), shim:amd64 (15+1533136590.3beb971-0ubuntu1, automatic) It looks like shim was installed and no records of its uninstallation were found -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821630 Title: After enabling Secure Boot - unable to boot Ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1821630/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
