On Thu, 24 Apr 2025 14:24:14 +0000
Pier Antonio Corradini <
pierantonio.corradini@gmail.com> wrote:
This RAID is a RAID
“firmware” (aka “fakeraid”). It seems better mdadm (array: /dev/mdX) instead of dmraid (with the activation by dmraid -ay; array:
/dev/mapper) but does legacy BIOS "impose" the use of dmraid?
If you don't need the hardware RAID (e.g. for dual boot Windows) you
might try deactivate it and use Debian softraid with mdadm only. This
should work in any case, because once the Linux kernel is started it
takes control and does usually a very good job.
You should install grub to both devices, e.g. /dev/sda and /dev/sdb
in your case, and grub will understand to boot from /dev/mdX softraid
devices. Everything on top of the softraid devices behaves exactly as
on real hard disk partition devices. You'll have a "normal" Debian on
disk with an additional mdadm layer, which is completely irrelevant for
any kind of normal usage, but protects you a little bit from hardware
disk failures.
--
kind regards
Frank
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