I might have had the same problem as you, but i can't check any of the log files because the computer isn't accessible to me anymore.
The problem i had when grub-install was being ran from the installer was it was trying to install grub to /dev/sda which was the USB device i was actually booting Ubuntu 14.04.2 from. I dropped into a terminal but grub-install wasn't a command. I used the boot repair disk to fix it, you can find that here: https://help.ubuntu.com/community/Boot-Repair -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354948 Title: Installed Ubuntu 14.04.1 Desktop LTS using RAID1+LVM and Grub failed to install To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1354948/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
