I have 3 HDD's, each divided into 3 partitions.

I had created a RAID-1 for boot partition

• md0 created from sda0, sdb0

and had also created two RAID-5 arrays:

• md1 created from sda1, sdb1, sdc1
• md2 created from sda2, sdb2, sdc2

It used to work fine but one day I had to power off the machine (cold reboot) to get any response from the machine. After that, when the system started booting, it tried for a while to reconstruct the RAID arrays but after a few minutes it crashed silently.

I booted the system in linux rescue mode from the DVD and tried to re-assemble the RAID devices manually. I was able to re-assemble md0 and md1 using:

mdadm --assemble --scan /dev/md0

mdadm --assemble --scan /dev/md1

But when I try to re-assemble md2 using:

mdadm --assemble --scan /dev/md2

the system reboots silently again.

How can I fix this problem?