Public bug reported: Binary package hint: ubiquity
On a MacBookPro (6.2) (without any OS on it), installing Ubuntu twice, with 'guided - resize' parititons option causes grub to fail to install, leaving both systems inaccessible. TEST CASE: First install Ubuntu using an "entire disk" install. http://iso.qa.ubuntu.com/qatracker/result/5334/1067 This leaves a 1MB GPT partition at the beginning of the disk, a <size-of-RAM> swap at the end of the disk, and an ext4 partition filling the middle of the disk. Then install Ubuntu again, using the 'guided - resize' partitions option. http://testcases.qa.ubuntu.com/Install/DesktopResize This suggests splitting the ext4 partition on sda2 about 50% and the subsequent partition table seems correct (screenshot attached). But then: Unable to install GRUB in /dev/sda Executing 'grub-install /dev/sda' failed This is a fatal error In a terminal, I do; sudo chroot /target; grub-install /dev/sda This gives: /usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/sda5. Check your device.map. Auto-detection of a filesystem of /dev/sda5 failed. Please report this together with the output of "/usr/sbin/grub-probe --device-map="/boot/grub/device.map" --target=fs -v /boot/grub" to <bug-g...@gnu.org> The output of grub-probe is attached (from before the install, and from after the error). It seems that I needed the device map from the live CD, which I unfortunately didn't manage to capture. This is ubuntu-desktop-adm65+mac.iso from 2011-03-29.1 on MacBookPro6.2 grub-pc-1.99~rc1-6ubuntu1 ubiquity-2.5.32 ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: iso-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/746313 Title: grub fails in ubuntu install on mac with 'guided resize' of partitions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
