Re: [gentoo-user] boot problems

[Stefan G. Weichinger]

Am 04.05.2014 12:49, schrieb J. Roeleveld:

> I wouldn't use the stripe/mirror support in LVM as I don't think it is used
> often and I feel that functionality doesn't belong in LVM.
> If you want to move it all into a single layer, I would suggest ZFS instead.

Oh, yes, I like ZFS and its features and used it in some cases already.
But I didn't yet take the step to set up ZFS-root on my work machines.

>> And then you get into issues with block sizes and stuff, where I always
>> wonder why *I* have to type all these parameters ... why doesn't modern
>> software just come with this knowledge inside?
>>
>>  .... you know
>>
>> *sigh* ;-)
>
> I agree, and I feel that has actually improved over time with modern tools
> defaulting to 4k sectors.

Yes, but it always feels like "I missed something" when you look at the
various layers: partitioning at correct sectors, RAIDs with their
parameters, creating PVs with PEs aligned ... and then the filesystems.
I never get the feeling that I really did it right from the base to the
top.

> Then it should work, provided you have all the required drivers inside your
> kernel and not as modules.
> I also believe an initramfs is needed when using LABELs for the root-fs.

Interesting. I don't really care if I have an initramfs or not, as long
as things work ... The feature with LABELs is nice for preparing
installations in VMs and then move it to physical hardware (eg.
/dev/vda1 then becomes /dev/sda1 or /dev/md0 and booting fails).

> At the moment, I don't see, from a simple user perspective, any real difference
> between booting using UEFI and BIOS/MBR.

UEFI is one thing, GPT partitioning another. Being able to have more
than the 4 primary partitions of MBR looks good to me ...

I will see where my motivation leads to ;-)

Stefan