Ubuntu on Mac Mini questions: manually booting without grub, and preserving GPT partition
nilesrogoff at gmail.com
nilesrogoff at gmail.com
Wed Aug 27 00:47:56 UTC 2014
-devel is for people who write the code that is compiled into applications in the userland and would be most likely be unable to help. As for efi instructions, I have seen .efi files in /boot directories before, but that's unfortunately the extent of my knowledge. Sorry I couldn't be of more help
> On Aug 26, 2014, at 18:24, Jason Heeris <jason.heeris at gmail.com> wrote:
>
>> On 27 August 2014 09:58, <nilesrogoff at gmail.com> wrote:
>> This is by no means my expertise, but booting from a live cd would allow you to make a new partition table and install ubuntu without dual booting. Beyond that I really don't know a lot, you could try setting the drive to mbr, mounting /dev, chroot and grub-install, but I don't know that the efi will boot mbr. mbr depends on the first 512 bytes of the drive being loaded directly into the processor and executed, and I have no idea how EFI works
>
> Can we take a step back here for a second? I actually know what's required for a pure EFI boot, and I've successfully done that before. What I'm trying to figure out is simply how to boot into a new system *just the first time* so I can set that up. For example, the installer seems to have advanced options available, including editing the bootloader command line. Would it be possible to use that to boot off /dev/sda2? If not, is there some other way I can "cheat" just once, so I can get my EFI bootable partition set up?
>
> Overall, the thing I'm trying to achieve is figure out the *minimal* set of instructions for a pure EFI boot, so I can produce a set of instructions, or a script, or even contribute to the development of the installer and grub. So, by minimal I mean: no rEFInd, no unnecessary installation steps, etc. Do you think the -devel list be a better place for these kinds of questions?
>
> Cheers,
> Jason
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