This bug was fixed in the package intel-microcode - 3.20201110.0ubuntu0.18.04.2
--------------- intel-microcode (3.20201110.0ubuntu0.18.04.2) bionic-security; urgency=medium * SECURITY REGRESSION: Some CPUs in the Tiger Lake family sig=0x806c1 fail to boot (LP: #1903883) - remove 06-8c-01/0x000806c1 microcode -- Alex Murray <alex.mur...@canonical.com> Thu, 12 Nov 2020 09:55:08 +1030 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903883 Title: XPS 13 9310 Tiger Lake Unable to boot 20.10 after intel-microcode update 3.20201110.0ubuntu0.20.10.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-microcode/+bug/1903883/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs