I have the same problem in 14.04 when accessing through chroot to repair a uefi bootloader.
Installed is 14.04, bootloader was overwritten by Win 8 bios update utility. Ubuntu 14.04 LiveCD is used to boot, and installed root and boot partitions are mounted to chroot into them to reinstall grub-efi Bug seems to be caused by grub-probe not working when installed / is on btrfs. It works without problem in the installed 14.04 environment, but fails when done through a chroot -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/591454 Title: grub-probe: cannot find a device for /boot/grub To manage notifications about this bug go to: https://bugs.launchpad.net/update-manager/+bug/591454/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
