I downgraded to the shim* packages from groovy, like this: oot@nsn7:/var/cache/apt/archives# l total 1,1M drwxr-xr-x 3 root root 140K abr 19 17:16 . drwxr-xr-x 3 root root 4,0K abr 19 17:15 .. -rw-r----- 1 root root 0 out 15 2020 lock drwx------ 2 _apt root 4,0K abr 19 17:16 partial -rw-r--r-- 1 root root 566K ago 3 2020 shim_15+1552672080.a4a1fbe-0ubuntu2_amd64.deb -rw-r--r-- 1 root root 338K out 21 06:18 shim-signed_1.45+15+1552672080.a4a1fbe-0ubuntu2_amd64.deb root@nsn7:/var/cache/apt/archives# scp shim* ~/ root@nsn7:/var/cache/apt/archives# cd root@nsn7:~# dpkg -i shim* dpkg: warning: downgrading shim from 15.4-0ubuntu1 to 15+1552672080.a4a1fbe-0ubuntu2 (Reading database ... 228150 files and directories currently installed.) Preparing to unpack shim_15+1552672080.a4a1fbe-0ubuntu2_amd64.deb ... Unpacking shim (15+1552672080.a4a1fbe-0ubuntu2) over (15.4-0ubuntu1) ... Replaced by files in installed package shim-signed (1.46+15.4-0ubuntu1) ... dpkg: warning: downgrading shim-signed from 1.46+15.4-0ubuntu1 to 1.45+15+1552672080.a4a1fbe-0ubuntu2 Preparing to unpack shim-signed_1.45+15+1552672080.a4a1fbe-0ubuntu2_amd64.deb ... Unpacking shim-signed (1.45+15+1552672080.a4a1fbe-0ubuntu2) over (1.46+15.4-0ubuntu1) ... Setting up shim (15+1552672080.a4a1fbe-0ubuntu2) ... Setting up shim-signed (1.45+15+1552672080.a4a1fbe-0ubuntu2) ... Installing grub to /boot/efi. Installing for x86_64-efi platform. Installation finished. No error reported.
And then rebooted. It failed the same way, so it seems to indicate it's not a problem with the shim, as these packages I had installed just before doing the do-release-upgrade. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925064 Title: shim(-signed)? does not boot on T420 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1925064/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
