Re: Soft RAID and EFI systems

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On 02/02/2014 11:57 PM, Phil Turmel wrote:
> On 02/02/2014 05:30 PM, Chris Murphy wrote:
>>
>> On Feb 2, 2014, at 2:34 PM, Francis Moreau <francis.moro@xxxxxxxxx>
>> wrote:
>>>
>>> That's funny because one of the reasons I want to use UEFI firmware
>>> is to get rid of grub (I don't like it and the way it has become
>>> such a bloated beast): since /boot is vfat and has its own
>>> partition, I prefer use a much simpler bootloader such as
>>> gummyboot.
> 
> Ditching the bootloader is possible:
> 
> http://kroah.com/log/blog/2013/09/02/booting-a-self-signed-linux-kernel/
>

Well yeah it's possible but not currently usable IMHO. It means that you
need to build your own kernel, include in this kernel the initramfs
image and you need to redo the whole process if you want to change a
single option in the kernel command line.

> It seems to me that you should be able to create a raid1 v1.0 MD array
> of your EFI support partitions, and put the combined and signed
> kernel/initramfs onto it (mirrored to all member drives).

Are both v0.9 and v1.0 MD  put their metadata at the end of a partition
? I thought only v0.9 would do that.

> 
> Then set the UEFI bios to try each device's ESP in turn.
> 
> Untested ... :-)

I'll do :)

Thanks

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