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Old 11-16-2008, 11:42 AM   #1
iainmackay85
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XP NTFS on RAID0 - mdadm mounting problems


I have a siI 3112 chip set to use two 500GB SATA drives in raid0 I have then partitioned one large ntfs partition on it and installed windows. I would like to change to linux, I installed a 80GB IDE drive and installed vector linux. I used mdadm to set up the raid using:
>mdadm --build /dev/md0 -n2 -c128 -l0 /dev/sda /dev/sdb

this seems to work correctly and says its running I do:
>cfdisk /dev/md0
this shows one partition md0p1 of type ntfs (since I never told it that the partition was ntfs I take this as a good sign.) so I do:
>mount -t ntfs -o ro /dev/md0 /mnt/windows and get an error about 'NTFS signature is missing.'

so taking from cfdisk md0p1 I try the same mount with /dev/md0p1 and receive a different error 'Failed to access '/dev/md0p1': No such file or directory'

what have I done wrong
 
Old 11-16-2008, 11:59 AM   #2
mostlyharmless
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Try -c 64; that's what works for me.
 
Old 11-16-2008, 12:15 PM   #3
iainmackay85
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Quote:
Originally Posted by mostlyharmless View Post
Try -c 64; that's what works for me.
I used
>mdadm --manage --stop /dev/md0
to stop the current set, then used -c64 instead mounting provided the same error as with -c128 any Ideas?

thanks for your reply

PS: mostlyharmless, were you trying to achieve the same as me? mounting a windows raid0 array?

Last edited by iainmackay85; 11-16-2008 at 12:16 PM.
 
Old 11-17-2008, 11:15 AM   #4
mostlyharmless
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Yes, well I suppose I should have asked if you made the Windows Raid 0 with Disk Manager or the Windows firmware disk driver for the siI 3112 chip set. I'm sure it's the latter, in which case you need dmraid to mount your raid 0 not mdadm. Sorry about that. If you're not sure - you used the disk driver.

Look up dmraid support for your distro - it is a little different for each one.

To answer your other question, I mount a Windows Raid 0 (using the firmware driver) and have it mirrored to an IDE drive so I use dmraid and mdadm.
 
  


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