Re: raid1 root device with efi

[Goffredo Baroncelli <kreijack@inwind.it>]

On 12/03/2024 13.39, Kai Krakow wrote:
> Am Mo., 11. März 2024 um 20:26 Uhr schrieb Goffredo Baroncelli
> <kreijack@libero.it>:
[...]
>> I am quite sure that grub access a btrfs filesystem dynamically, without using a
>> pre-stored table with the location of a file.
> 
> Yes, it probably can work its way through the various trees but the
> extent resolver and reader is very basic.
> 
> This means, at least for now: do not let anything touch the boot files
> grub is using, and do not use compression, then it SHOULD work well
> most of the time.
> 
> I'd still avoid complex filesystems involved in the grub booting process.
> 
The other options are not better: using a dedicated filesystem is not without
shortcomings: do you think that the implementations of VFAT in the UEFI bioseS
are better ? The fact that the FAT filesystem is far simpler is a plus but...

As sd-boot user, I like the simplicity of this bootloader. But in some
context it is limited. My efi partition has a size of 1GB, but now the
kernel+initrd images are in the order of 100MB....so it can't contain more than
10-12 images. This is fine for the standard user, but it may be not enough
for some hobbyist...

grub is over-complicated, but it can withstand complex filesystem layout...

May be a kernel with a dedicated initrd which kexec the real kernel ?

BR

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