Re: asrock mobo - raid sata disks

BJB wrote:

I have an asrock k7upgrade-600 mobo and wanted to install a debian
distro on 2 sata disks connected in raid-1 mode.
I see that this mobo lets define raid arrays, but when installing linux
the array is not recognised, installation sees the 2 disks separated and
if i install on one of them, the other remains empty, no raid-1 is
performed.
Perhaps i need a linux module? A mobo bios upgrade or something else?
Tia and any help appreciated.

Nearly all SATA RAID functionality available directly from the motherboard
is in fact a low-budget hardware-assisted software RAID solution.

It is best to disable the RAID features of your SATA controller in the BIOS
set-up and use the disks as plain SATA disks. You can then set up a
software RAID via the Linux RAID tools.

Most distributions support this, but bear in mind that if you want to have
the root and */boot* filesystems on a software RAID, you'll need to boot
with an /initrd/ or /initramfs/ that has the appropriate modules available
already at boot time, before the on-disk root filesystem is mounted.

If you stick to the distribution's stock kernel, you /should/ be fine - just
about every binary distribution boots their kernel with an initial ramdisk
- but should you ever decide to build your own kernel, then you'll have to
remember to create a suitable /initrd/ or /initramfs/ to go with it, or at
least, if you want your root filesystem to be RAIDed.

Hope this was helpful... ;-)

--
*Aragorn*
(registered GNU/Linux user #223157)
.

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