Thank you for reporting this, Richard! I ran into this exact same error while upgrading to grub-pc (2.02+dfsg1-12ubuntu2.1) on Ubuntu 19.04. After given choices of "/dev/sda", "/dev/sda5" and "/dev/sdb", I selected /dev/sda and /dev/sda5 on the "GRUB Install devices" page, leaving "/dev/sdb" unchecked. Then this error appears:
Installing for i386-pc platform. grub-install: error: cannot find a GRUB drive for /,. Check your device.map and, running "ps auxwww | grep grub" shows this: grub-install --target=i386-pc --force --no-floppy /, just as what you have observed! Thank you for providing the fix too! I'll try to make merge request of your patch at https://salsa.debian.org/grub-team/grub Cheers, Anthony -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1803805 Title: grub-pc fails to install on the last of multiple devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1803805/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs