Help! Head crash on IDE Seconday Master. Slave has all the data but wont boot

Hi,

So I build this great new P4 2.53GHz server. I had two WD 100GB Caviar Special editions running in a RAID1 format. All seemed fine except one drive was very noisy and caused excessive vibrations. Thought nothing of it because it's less than a month old. Well, I was wrong, very wrong. Last night the drive failed and the next boot up sequence left me with sound I will never forget. Anyway, until I get a new drive to rebuild and supplant the array, I was going to boot from /dev/md0 (/boot partition) but to no avail the system does not want to recognize it as a boot disk. If I boot up in rescue mode, it says there are no partitions on the disk (/dev/md0). However, if I use the fdisk -l I get what you would expect including a BOOT partition. Luckily, I did make the emergency boot floppy and I am able to boot the system on from that floppy for the ROOT partition on the disk /dev/md2. So, how do I tell the boot loader to look at /dev/hdd instead of /dev/hdc (the dead disk in the raid pair) without loosing my installed data? I now new to RAID, however, I am new to software RAID in Linux. Any help and advise would be greatly appreciated.

Thanks in advance,

Stuart

Try connecting your hdd as hdc (ie, set it as master disk). No other changes should be needed, nor should you switch it back when you will place the new disk in (as slave, of course).

Hope it helps.

Massimiliano Masserelli
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