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Old 06-09-2008, 07:43 PM   #1
PBAsydney
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Dual boot Ubuntu and Windows (RAID)


I have Ubuntu 8.04 64-bit installed on a 200GB HDD, and I'm planning on re-installing my XP x64 on my RAID disks, (dual 320GB), I did this some time ago, problem was that GRUB wouldn't boot up windows, it couldn't boot up both RAID disks at the same time, and thus the RAID array was no good.

Is there anyway for linux/grub to see the RAID array as one HDD or a RAID array, instead of two separate HDD?

Having Linux/Windows on separate partitions on the RAID array is also an option for me.

Any help appreciated.
 
Old 06-09-2008, 10:15 PM   #2
rabbit2345
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you need to create seperate partitions if you want both OSs to coexist, if thats what you're asking. as for grub, i don't belive grub sees the hd's as one because of RAID, but that should not be a problem if grub is on one disk.

may i know why you need a RAID array in the first place? it seems you have enough disk space to house both systems, and the 120 GB (320 - 200 = 120) one can be used for data only. RAID can complicated things if you don't really need it
 
Old 06-10-2008, 01:31 PM   #3
PBAsydney
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Quote:
Originally Posted by rabbit2345 View Post
you need to create seperate partitions if you want both OSs to coexist, if thats what you're asking. as for grub, i don't belive grub sees the hd's as one because of RAID, but that should not be a problem if grub is on one disk.

may i know why you need a RAID array in the first place? it seems you have enough disk space to house both systems, and the 120 GB (320 - 200 = 120) one can be used for data only. RAID can complicated things if you don't really need it
I'm using RAID-0 for my XP because I play all my games there.

And Linux and Windows are on seperate partitions, Linux is on the 200GB drive, windows on the 640GB RAID array, but then, when I loaded Windows in GRUB, (HD1 or HD2, those being the two RAID disks) text said it was loading the OS, but nothing happened.
 
Old 06-10-2008, 02:26 PM   #4
farslayer
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If it were true hardware base RAID it would probably not be an issue, as both OS's would see the array as a single disk anyway..

With el-cheapo host based RAID, which is usually what is integrated on most motherboards, it's a different story since the RAID functions are handled by the CPU and a software driver..

I would be interested to know if you get that working..
 
Old 06-12-2008, 04:16 PM   #5
mostlyharmless
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There's a grub version 0.97 patch for dmraid which I think you need if you want to boot RAID-0 "fakeraid" disks. If you're using LDM Windows RAID then you probably need the grub LDM patch.
 
  


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