I lost sudoer rights after upgrades this week (it's been a while since I rebooted so I can't know what else was upgraded since the previous rebot).
$ apt-cache policy intel-microcode intel-microcode: Installed: 3.20180425.1~ubuntu0.16.04.2 Candidate: 3.20180425.1~ubuntu0.16.04.2 Version table: *** 3.20180425.1~ubuntu0.16.04.2 500 500 http://tw.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 3.20180425.1~ubuntu0.16.04.1 500 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages 3.20151106.1 500 500 http://tw.archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages $ uname -a Linux my-os 4.13.0-39-generic #44~16.04.1-Ubuntu SMP Thu Apr 5 16:43:10 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769335 Title: PC won't boot with latest intel-microcode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1769335/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs