I didn't spot an existing bug report when I first filed this but I later found:
https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1635781 ...which is pretty closely related. I am using UEFI and Manjaro Linux rather than Legacy BIOS mode and Arch Linux but the cause of the problem seems to be the same. --Matt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840477 Title: Probed linux entries not bootable if original initrd line has more than one file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1840477/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs