md0 and moving to another system

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Hi all,

I thought to have tested this a while ago but I guess not.

I have a Centos 5.3 system (call its SYSA) software raid 0, 2 disks.

I have an identical system (SYSB) else were, so I pull one of my  
mirrors drives from SYSA and put it in SYSB as the only drive in SYSB.

Upon but I get grub error.

I boot in recuse mode (CD, linux rescue) and it attempts to mount the  
disk, but claims no partitions exists.

I drop into a shell and mount it w/o issues.

Running fdisk on the drive tells me its got 2 partitions which is true.

I set this up as ext3, no LVMs, etc... with root and the other  
partition being swap.

I've always thought that all I can do in the event of motherboard  
failure os to have a duplicate system around and merely move a dive  
off to it.

- aurf
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