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Old 01-02-2007, 09:53 AM   #1
Registered: Jun 2005
Location: London, Uk
Distribution: RH-ES 3/4, FC 5/6
Posts: 51

Rep: Reputation: 15
Question Clone from IDE disk to SATA RAID possible?

Well my title kind of encapsulates what I need to do. There are many sytems that we have, all are based on the same specification, that usually have a single IDE drive installed. Usually we simply clone a pre-configured installation of RedHat, from our 'master' IDE drive to the IDE drive in the systems, using G4L. The board is an Intel Torrey Pines TP-1, with Adaptec ICH5R-S based RAID controller onboard.

But the client now wants a RAID1 configuration, so I need to get the contents of our pre-configured IDE drive onto a SATA RAID1 pair. G4L (Ghost4Linux) sees the built array as seperate drives, I tried copying bit-for-bit onto the first SATA drive regardless (btw, would the SATA controller simply mirror this data as its copied across? It seemed to be sync'ed ok in the RAID bios afterwards). I rebooted (onto the SATA RAID), & got a kernel panic, couldn't mount /. I presume this is because the RAID drivers aren't built into our IDE pre-configured OS?

The RAID BIOS will allow a non-destructive, mirrored build, so I could just image to SATA drive 1, get the RAID driver in there (somehow?) then build the array across to SATA drive 2?

Any help or tips are greatly appreciated,

regards, Jim
Old 01-03-2007, 04:59 AM   #2
Registered: Jun 2005
Location: London, Uk
Distribution: RH-ES 3/4, FC 5/6
Posts: 51

Original Poster
Rep: Reputation: 15
So I've imaged the RedHat9 install to the SATA disks as both RAID & non-RAID devices, either way I get a kernel panic when I boot from them. It's now becoming clear that the original grub config is looking to /dev/hda not /dev/sda, and I guess the /etc/fstab will also be pointing to hda devices. Are there any other files I might have to edit to point to /dev/sda, perhaps via KNOPPIX live-CD (if I can get this to write to the drive, seems to be read-only currently).

Also, how can I get a RAID driver into the original OS, so that /dev/sda is recognised as an array when I reboot on the cloned drives?

I hope this made some sense, let me know if you need any more information, I need some help here, since this task seems well beyond me at the moment!

regards, Jim


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