I have tried installing all versions thru 17.04 to sdb and to sdb's ESP. Every one overwrote my main working installs /EFI/ubuntu folder in sda. I quickly learned to back that folder up, so I could reset main working install as default boot.
Same happens when I do a full install to flash drive, it overwrites my main working installs /EFI/ubuntu on sda. But if flash drive grub/shim also needs to be /EFI/Boot/bootx64.efi. And this bug report covers that, although related. https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1173457 and since Debian grub related https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=746662 ** Bug watch added: Debian Bug tracker #746662 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=746662 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1414124 Title: install reports unable to install grub to /dev/sdb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1414124/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
