Hi Barry On 22 June 2015 at 14:25, Barry Drake <[email protected]> wrote:
> On 22/06/15 12:27, Tony Pursell wrote: > > I do, however, have a residual problem. When I start the computer up, I >> do not get a GRUB menu. I can only start Ubuntu from the computer's F12 >> boot menu. It will then show a GRUB menu, which includes Windows Boot >> loader. Is there a way to go straight to the GRUB menu? I have >> followed a lot of the online advice and changed setting in the BIOS but >> I don't see any advice that explicitly refers to this problem. >> > > I think we are back to the problem I said you would get if the installer > installed from the normal boot menu and not from the grub screen which only > appears when you boot the disk in EFI mode. Look at the EFI boot partition > - it is a small partition at the beginning of the drive. It is only about > 240 MB in size. In it, there will be Windows boot instructions in one > directory, and if it has installed correctly, there ought to be an Ubuntu > directory in the same partition with Ubuntu instructions. If it is not > there, the installer has installed in BIOS mode - and strictly, the two > systems shouldn't be mixed. > > The installer (from the USB stick) was in EFI mode, and the installation of Ubuntu is EFI as well. This is according to tests in https://help.ubuntu.com/community/UEFI under "Identifying if the computer boots the HDD in UEFI mode" and "Identifying if the computer boots the Ubuntu DVD in UEFI mode" There is a partition called LRS_ESP (520MB, msdos) which has folders "EFI" and "onekey". The EFI folder only contains a folder "Microsoft" If the Ubuntu directory is there, then there is a bug in the installer, you > should report it. In your case, it ought to be fixable by re-installing > grub and doing an update. That should (hopefully) not stop the ability to > boot Windows, but only from the new grub screen. No guarantees! If you do > report it as a bug, let me know - I can probably confirm it after a couple > of tests. > > I don't want to do anything that will risk not being able to boot Windows. I'm unlikely to use it much but there are some circumstances that may arise where I need it. > If it has been installed in BIOS mode, you may get away with it if you do > an 'install-grub' followed by an 'update-grub', but this process WILL > destroy the ability to boot directly into Windows as you can now do. > Hopefully, update-grub will find both systems and allow proper booting of > both OSs from the new grub screen that will appear. I can't guarantee it > though, hence the BIG note of caution. Be prepared to re-install Windows. > > In the latter case, the safer option would be to re-install Ubuntu from a > disk booting in EFI mode and to use the disk boot grub screen. > >
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