[systemd-devel] Antw: [EXT] Re: howto switch from grub2-bios to systemd-boot

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Mon Sep 7 07:47:49 UTC 2020


>>> Lennart Poettering <lennart at poettering.net> schrieb am 04.09.2020 um 17:44
in
Nachricht <20200904154423.GM267847 at gardel-login>:
> On Fr, 04.09.20 17:10, Reindl Harald (h.reindl at thelounge.net) wrote:
> 
>> > No, that's not supported in sd‑boot. A boot loader is a boot loader,
>> > it should contain a fragile storage stack. It's kinda what sd‑boot is
>> > supposed to do better than grub.
>>
>> well, a boot loader should just *load* and not write anything so RAID1
>> is technically no problem and it shouldn't matter which of the 1, 2, 3
>> or 4 disks is there unless one survived.
> 
> Robust boot loaders typically want to write boot counters to disk, so
> that they can automatically revert back to older versions of the
> OS/kernel if it doesn't boot. Thus some form of write access is
> necessary if you care about robustness.

Actually I think if the current kernel doesn't boot, it's the task of the
system administrator to take recovery measures, not the boot loader.

> 
> Lennart
> 
> ‑‑
> Lennart Poettering, Berlin
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