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Old 06-11-2006, 08:54 AM   #1
Registered: Jul 2004
Posts: 40

Rep: Reputation: 15
RAID 1, debian, installation small problem


Well my sata disks are recognized by installer and now i'm in the next painfull step of creating RAID 1.

Using this tutorial: it stops for me when it tries to create an array.
"No RAID partitions available"

All four partitions for 1 disk in total 8 partitions are set for RAID!

So i went to console (ALT+F2) and typed:

mknod /dev/md0 b 9 0
mdadm --create -l 1 -n 2 /dev/md0 /dev/sda1 /dev/sdb1

and array was successfully created:
cat /proc/mdstat gives me an md0 array..

Now i wanted to do this for all other 3 partitions (in total i have 4) using same steps:
mknod /dev/md1 b 9 0
mdadm --create -l 1 -n 2 /dev/md1 /dev/sda2 /dev/sdb2

It asks me for creating array, i type 'yes' and then it gives me an error:
mdadm: SET_ARRAY_INFO failed for /dev/md1: Invalid argument

Going back to first console, installation still gives me "no raid partitions available". Anyone knows what's going on here? Some hints would be appriciated..

Last edited by TheRudy; 06-11-2006 at 08:56 AM.
Old 06-11-2006, 09:27 AM   #2
Registered: Jul 2004
Posts: 40

Original Poster
Rep: Reputation: 15
ah stupid me, i should use:
mknod /dev/md1 b 9 1

for second and '9 2' for third and so on...


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