View Full Version : 14.04 installed beside 8.1 dual boot issue.

February 13th, 2015, 03:58 AM
I am booting Ubuntu into legacy mode, in order to dual boot I need to change it to EFI. I have attmpted the Boot Repair tool but I receive the following message.

The current session is in Legacy mode. Please reboot the computer, and use this software in an EFI session. This will enable this feature. For example, use a live-USB of Boot-Repair-Disk-64bit (www.sourceforge.net/p/boot-repair-cd), after making sure your BIOS is set up to boot USB in EFI mode.

Thoughts on how to fix this issue to allow for a true dual boot and not having to F2 and swap fom legacy (Unbuntu) to EFI(8.1)

February 13th, 2015, 04:26 PM
Only if drive is gpt partitioned can you convert to UEFI boot.
Do you have efi partition already?
Is Ubuntu on same drive as Windows, if so then it is gpt & you already have the efi partition. The efi partition is shared by all systems installed in UEFI mode.

Then you can boot live installer in UEFI mode, and add Boot-Repair. It will uninstall grub-pc(BIOS) and install grub-efi-amd64(UEFI) and add an entry to fstab to efi partition.