[Boot-Repair] Graphical tool to repair the PC boot in one click

[oldfred]

@martin-fisher
It looks like your Windows is missing the BCD.
Grub2's os-prober looks for the Windows boot partition that has boootmgr & BCD.

If you can run Windows repairs from you Windows installer it should create a BCD. Or you may need to download something like EasyBCD, but I do not suggest using EasyBCD to dual boot.

BCDboot Command-Line Options Windows Vista/7/8 recreates boot files.
http://technet.microsoft.com/en-GB/l.../hh824874.aspx

Windows repair console:

BootRec.exe /RebuildBcd


How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows
http://support.microsoft.com/kb/927392
http://www.sevenforums.com/tutorials...ot-record.html


http://neosmart.net/blog/

[martin-fisher]

Overnight I realized that the problem could be that Windows is not the first partition. I have now sorted that out and reinstalled windows (it created a hidden partition and a partition for Windows). Grub is restored and I can start Ubuntu but Windows is not on the menu. The new deails are at paste.ubuntu.com/6105055

Any advise would be greatly appreciated.

[oldfred]

Script still is not showing BCD file? Sometimes script misses things but usually it shows the BCD file in Windows /Boot/BCD

You may need to run Windows repairs from Windows.

Once you have BCD file & Windows boots from Ubuntu run this to add Windows to grub menu.

sudo update-grub

[martin-fisher]

@oldfred Many thanks for your help. I have tried many things but eventually - after trying many things - I gave up, removed ubuntu and installed Windows from scratch, and then Ubuntu again. Takes a long time but less than the time I spent trying to fix the MBR. Again, many thanks.

[bitcrow]

I was directed to this theard after I tried to fix boot problem. I installed Ubuntu Studio 12.04.3, but laptop boots Win8 every time. Here is the URL of my problem report: http://paste.ubuntu.com/6124066/

[oldfred]

@bitcrow
With UEFI installs, you have all the boot loaders in the efi partition. So it is not like BIOS where only one boot loader is in MBR and whichever is in MBR controls booting. You now control booting more like old BIOS choice of hard drive, DVD or flash drive.
You should be able to go into UEFI/BIOS and choose to boot ubuntu entry. Or use one time boot key (f12 on my system) to test booting of ubuntu.

[bitcrow]

I seemed to access Ubuntu in BIOS (or whatever) from EFI file - EFI - Ubuntu - grubx64.efi Then it showed Grub-menu. In the ordinary boot it boots straight to Windows. Is there any way to change BIOS/EFI-thing first boot-priority for that grub file?

[oldfred]

In your UEFI menu should be the option on which boot is first. Some may have it mixed up with hardware - hard drive, DVD, floppy etc or it may be another menu entry. But you should just have to move ubuntu entry to be first boot choice.

[bitcrow]

UEFI boot order in BIOS following: OS boot Manager, Internal CD/DVD ROM Drive, USB Diskette on Key/USB Hard Disk, USB CD/DVD Drive and ! Network Adapter. I guess that doesn't have anything to do with Ubuntu partition etc. So there should be another menu?

[oldfred]

Does OS Boot Mgr have a sub menu or is it another menu entry, possibly even on another page?

Others have posted screens that look like this: