Upon some further research, it looks like this bug is similar: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1848892 However, that bug seems to happen all the time where as for me it's intermittent.
I tried the workaround from the linked bug and can confirm that when I experience the issue I can boot successfully by: * 'c' * grub> rmmod tpm * 'esc' * 'enter' to select normal boot menu entry. ** Description changed: Sometimes on reboots and quick cold boots (poweroff then hit power immediately) I get ``` error: Command failed. -repeated a number of times then error: you need to load the kernel first. Press any key to continue... ``` - * cold booting usually fixes this and I'm able to reboot normally. + * cold booting usually fixes this and I'm able to boot normally. * I have three identical laptops and have seen the issue on 2 (i've only installed 20.04 on two). * I don't see the problem on 18.04. * If I go into the grub> menu many commands fail "true" "cat" but some don't "ls" "false." The source for grub points to tpm.c when I search for "Command failed." I also notice that there's no such file in 2.02 version of grub so maybe that's related to why it doesn't work. I haven't been able to find a combination of BIOS settings that mitigates this. I have tried disabling everything I could think of. This laptop has Intel PTT which I think is baked into the BIOS (which I upgraded to the newest). I will have these laptops for some time but won't be able to test much beyond a week or two. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: grub2-common 2.04-1ubuntu26 ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41 Uname: Linux 5.4.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Tue Jun 16 16:33:42 2020 InstallationDate: Installed on 2020-06-08 (8 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) ProcEnviron: - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: grub2 UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883785 Title: intermittent boot failure dell inspiron 3593 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1883785/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
