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Old 04-27-2008, 12:17 AM   #1
dangerousdave
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Registered: Feb 2005
Distribution: Ubuntu 8.04
Posts: 100

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Adding SATA RAID 5 secondary drives to Ubuntu (8.04) after installation


Hey. I've just installed Ubuntu, which is triple-booting with XP and Vista. All 3 OSs run on seperate drives, with Vista split across 3 drives in a RAID 5 array.

I installed Ubuntu so that I could use my BIOS to select boot options, i.e. I unplugged my other hard drives whilst I installed Ubuntu. Once Ubuntu was installed, I plugged my other drives back in. Problem is that the RAID array is simply not detected. Not as a single drive, not as 3 drives... nothing.

There are a few bits and bobs on the web about *installing* Ubuntu on a RAID system, but nothing on adding in RAID drives post-install.

Should RAID arrays be detected without fiddling, and something less obvious is the problem? Or does Ubuntu need all this kernel patching or whatever just to get support for RAID?

Cheers,
 
Old 04-28-2008, 05:58 AM   #2
lukost
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Registered: Apr 2008
Location: Gliwice, Poland
Distribution: Any. BSD most often ;-)
Posts: 31

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Are you using a hardware RAID controller (like adaptec 5445 PCIE card), a pseudo-hardware RAID controller (those are common on motherboards) or a software windows-driven RAID array? Linux should detect hardware RAID with no problem. There is also no problem whith using motherboard driven pseudo-hardware raid. Software RAID is supported but not the one Windows provides via its software implementation... Linux has software RAID enabled by default (at least Ubuntu does, as i use the feature) but this is not compatible with windows implementation.

cheers,
lukost
 
Old 04-28-2008, 08:14 PM   #3
dangerousdave
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Registered: Feb 2005
Distribution: Ubuntu 8.04
Posts: 100

Original Poster
Rep: Reputation: 15
Hey, thanks for the reply!

I'm using SATA RAID built into my motherboard (Gigabit w/ nForce 570).

Still have the same problem. I installed the gnome Device Manager and in there I can see it detects the RAID drives as well as a RAID device.

However, after some searching it seems as if Fake RAID5 isn't supported (and I assume that's what I got), at least it wasn't... Hard to find recent info regarding this...

Anyone in the know about the status of RAID5 support in linux? Anyone got any tips on how to get it working?

Cheers,
 
  


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