This problem affected me on a fresh install of Ubuntu 18.04. The package grub-efi-amd64-bin doesn't include the hwmatch module in the long list of modules it does install. But the script 10_linux in /etc/grub.d/ references this hwmatch module, causing the error.
Note hwmatch *is* included in the modules installed by the BIOS version of grub, grub-pc-bin. I worked around this issue by commenting out the if-then structure in the 10_linux and updating grub (see this Ask Ubuntu post for the code https://askubuntu.com/questions/1174374/grub-issues-message-at-boot- error-cant-find-command-hwmatch/1174386#1174386) but I am unsure what functionality is missing because of this error of omission. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840560 Title: "error: can't find command hwmatch" during grub To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1840560/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
