11.04 boot issues

[Tom H]

On Sat, Jun 11, 2011 at 12:23 PM, Scott Lipcon <slipcon at gmail.com> wrote:
>
> I'm having some trouble with getting a new system up & running.  This is my
> first attempt at booting off a big disk, and I'm probably just doing
> something dumb.
> Software:  Mythbuntu 11.04 64bit and Ubuntu Desktop 11.04 64bit - tried
> both, both behave the same.
> Hardware:  Intel motherboard, i5 CPU, 2Tb disk.
> Bios has an option called "UEFI Boot" - it says it needs to be enabled to
> boot off of >2Tb disks.  When its disabled, in fact it wont boot off the
> disk at all - it skips right past it and attempts to network book.   So, I'm
> working with it enabled.
> When I do a mythbuntu or ubuntu install, and tell it to "use the whole
> disk", everything ends up ok.    However, the ultimate goal for this is
> mythbuntu, so I'd really like to partition it (small-ish / ext4,  the rest
> of the disk as a large jfs for the mythtv recordings).
> I've tried everything I can find in terms of partitioning, but I'm obviously
> doing something wrong.   The most recent attempt I did:
> 1) install "whole disk"
> 2) go back in to the install, leave sda1 (20Mb FAT16 boot?) alone, remove
> sda2 (/) and sda3 (swap) and recreate as before,  leaving grub set to sda,
> reinstall
> On reboot, I get:
> invalid arch independent ELF magic
> grubrescue>

If your BIOS has a "UEFI Boot" option, it's a stupid misnomer... :(

You have to format your disk with GPT partitions and create a small
partition at the very beginning of type bios_grub.