Public bug reported: After I installed Ubuntu 15.10 as a dual-boot with elementary 0.3.1 (I did not install the bootloader for Ubuntu), update-grub fails when ran from elementary OS.
Grub version: 2.02~beta2-9ubuntu1.5+elementary10~ubuntu0.3.2.1 Output of sudo update-grub: Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.19.0-39-generic Found initrd image: /boot/initrd.img-3.19.0-39-generic Found linux image: /boot/vmlinuz-3.19.0-37-generic Found initrd image: /boot/initrd.img-3.19.0-37-generic Found linux image: /boot/vmlinuz-3.19.0-33-generic Found initrd image: /boot/initrd.img-3.19.0-33-generic Found Ubuntu 15.10 (15.10) on /dev/sda5 Found unknown Linux distribution on /dev/sdb3 Found Ubuntu 15.10 (15.10) on /dev/sda5 Found unknown Linux distribution on /dev/sdb3 Adding boot menu entry for EFI firmware configuration Found linux image: /boot/vmlinuz-3.19.0-39-generic Found initrd image: /boot/initrd.img-3.19.0-39-generic Found linux image: /boot/vmlinuz-3.19.0-37-generic Found initrd image: /boot/initrd.img-3.19.0-37-generic Found linux image: /boot/vmlinuz-3.19.0-33-generic Found initrd image: /boot/initrd.img-3.19.0-33-generic Found Ubuntu 15.10 (15.10) on /dev/sda5 Found unknown Linux distribution on /dev/sdb3 Adding boot menu entry for EFI firmware configuration Segmentation fault (core dumped) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1525572 Title: update-grub segmentation fault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1525572/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs