Helping a friend install Ubuntu 12.04 LTS 64bit to a Win8 hard drive for a dual-boot. Friend created a partition for Ubuntu months ago and finally we started playing around with it new year's eve. Booted from a 12.04 LTS disk and it worked like a charm on friend's machine.
Friend did attempt an install a couple of days later, but reports that he stopped installing when there was no sign whatsoever of his Windows install. Stroke of luck there as I believe that is an EFI issue that would have wiped Win8 if he'd have continued. Anyway, off-topic.
He's keen to get it installed, I'm not there and no EFI expert, so I have been researching it over the last few days and was hoping the community could help to clarify and correct my findings so I can pass them on.
1/ Win8 is self-installed, not a pre-install, so I'm presuming there is no issue about secureboot and we can disregard that and continue.
2/ The Win8 partition is marked 'EFI' in the BIOS. In this case, I would have thought there would clearly be a small partition marked 'EFI' in Win disk management, but;
3/ Win8 Disk Management (think that's it) shows there's a 350mb partition on Win8 disk, but it has no label. Could that be an EFI partition? Is there a way of telling?
4/ The BIOS says the disk is EFI, so:
- We need to boot the optical drive/Ubuntu EFI and if so how? I've read that if Win8 is installed EFI then Ubuntu must be installed EFI.
5/ We will be partitioning manually using 'Something Else' so:
- If there IS no existing EFI partition, I presume we need to create a 500mb partition that comes before /, /home, /swap or any other *buntu partitions, and Ubuntu will know what that is without us providing a mount point (/boot/efi) as the disk itself is being booted in EFI mode?
(#5 has me a bit confused; what's the exact procedure for creating this partition? I'm aware Ubuntu doesn't show a mount point for /boot/efi once it is created.)
All thoughts, advice and corrections greatly appreciated. As you can probably see, I am attempting to create a working model specific to this situation from the many pages of information I've seen to pass on to friend for a successful install without me being there to experiment.
PS: It's been fun learning about EFI as I knew pretty much absolutely zilch about it on Wednesday!