Public bug reported:
Suggested enhancement:
If os-prober finds an installation of Windows on a MBR partition, while running
in UEFI mode, it should create a UEFI compatible chainload entry and instruct
the user to create a valid UEFI boot configuration in Windows, if the files are
missing.
Initial situation:
My notebook has two hard drives: a small mSATA SSD which runs Ubuntu 12.10 with
UEFI/GPT and a HDD which runs Ubuntu 12.04 and Windows 8 with BIOS/MBR
configuration. Running os-prober in UEFI mode on 12.10 detects all installed
operating systems but the but the menu entry for Windows does not work because
it cannot find the 'drivemap' command and is unable to do 'chainload +1' (error
message: not a valid file path/efi image).
Proposed fix:
Configure the entry as UEFI and chainload the efi image (chainload
/efi/Microsoft/Boot/bootmgfw.efi). If the image cannot be found in the usual
location, os-prober should tell the user to run 'bcdboot C:\Windows /s C: /f
UEFI' in Windows, which will copy the necessary files to C:\EFI\ and create a
valid BCD configuration.
I have just tested it, Windows can be booted using both methods and
there are no modifications to the EFI system partition on the other
drive or the partition table on the drive where Windows is installed
needed.
** Affects: os-prober (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/1107677
Title:
Chainload MBR installtation of Windows in UEFI setup
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1107677/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
