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Making Ubuntu My Default OS

post #1 of 7
Thread Starter 
Hi there! I'm trying to make Ubuntu 12.04 the OS that automatically boots up upon turning on power. Currently, Windows 8 is my default OS (and came pre-installed on the laptop). I tried asking the community on askubuntu and reading articles, but haven't had much luck...
From what I can gather, the problem does not lie in grub, as grub does not load at any point and ubuntu seems to be the default OS on grub--to get there, I have to open up the UEFI, go to boot options, and load the ubuntu partition.

Here is a bit of info that may help:
I installed ubuntu off a usb drive and with secure boot disabled.
The hard drive boots in EFI mode and ubuntu was installed in EFI mode.
The only partition change I made was to transfer some space from the massive windows8 partition to make an ubuntu partition.

Thanks for reading.
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post #2 of 7
Have you tried making the Ubuntu partition the primary boot device in your UEFI, that'll make it always boot into grub and then you can remake the grub config with os-prober installed and that will add your windows install to grub (if it isn't already there).
Edited by FateousMaximous - 8/17/13 at 7:25am
post #3 of 7
Thread Starter 
Under the boot device order (in f10 settings), I have options to do "OS Boot Manager", which boots automatically to windows, or usb/dvd boots. When I go to f9 to chose which device I want to boot manually, "OS Boot Manager", "Ubuntu", and a couple other options show up. I can change the order of the f10 list (which does not include ubuntu), but cannot change the order of the f9 list (which does include ubuntu).
This is the InsydeH20 UEFI.
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post #4 of 7
it would be an option in your bios. it would help to have some screenshots of your bios or at least the board you have. might even try some windows tools like easybcd or something to edit the boot options
post #5 of 7
Thread Starter 


There you are, my good man.
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post #6 of 7
from looking around, it seems like ubuntu 12.10 64 bit is the version of ubuntu that can be dual booted with preinstalled windows 8. (check this article out) another thing you could consider is changing windows 8 to allow legacy boot support (to work with grub) and use a boot repair from within ubuntu. (instructions in this thread)
post #7 of 7
Thread Starter 
I found this on microsoft's site while searching around:
bcdedit /default
is the GUID for the OS you want as default. I don't quite understand how GUID works or how to find the one that corresponds to Ubuntu.
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