Thread (2 messages) flat view 2 messages, 2 authors, 2002-11-24

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

From: Stuart Levine <hidden>
Date: 2002-11-23 12:38:32

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

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