Public bug reported: I'm installing Ubuntu 16.04 onto an external HDD. My computer also has an internal Windows 10 HDD.
When at the partitioning stage, it selected for the boot loader to be installed onto the external HDD. When Uniquity is installing the system, it mounts Windows 10's ESP and copies the Ubuntu/grub boot loaders over, when it should have mounted the ESP created on the external HDD. I attached a screenshot of lsblk to show what's happening. /dev/sda2 is the Win10 ESP and it's mounted to /target/boot/efi. /dev/sdb1 is the correct ESP but is not touched. Because the boot information is not on the external HDD, the Windows 10 disk must be present to boot Ubuntu because the boot information pointing to Ubuntu is located on the Windows ESP. Ubiquity is version 2.21.63. I also attached the Ubiquity debug file, partman, and syslog. Sorry for putting them in a zip, can't attach more than 1 file. ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: boot efi esp ubiquity uefi ** Attachment added: "Ubiquity debug file, partman, and syslog" https://bugs.launchpad.net/bugs/1591352/+attachment/4681249/+files/debug%20stuff.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1591352 Title: Ubiquity copies efi boot information to wrong ESP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1591352/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs