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Thread: linux with raid 0 - dmraid?

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    Grizzled old-timer! Deadlight's Avatar
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    linux with raid 0 - dmraid?

    I'm not a linux person, but I'm using knoppix 5 and want to mount a NTFS partiton on an nvidia raid, uding DMRAID. Help please! I really just want one partiton here, not the whole disk. I'm not booting from Linux or anything (well, not from Linux)

    Dale
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    Agent of the System ikonia's Avatar
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    Do you want to explain what your trying and what you've done so far ?

    My personal opinion on dmraid and fake raid in general is just don't use it, its a weak technology, but I appriciate thats not of use to you at this exact moment. Just something to consider for future.
    It is Inevitable.....


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    You can get some fairly cheap PCI cards that will allow your system to detect raid arrays as IDE devices. I've always been of the opinion RAID should be completely abstract of anything else on the machine.
    To err is human. To really foul things up ... you need a computer.

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    Agent of the System ikonia's Avatar
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    additional question - if your not a linux person why are you using linux to try to access this, whats the problem with accessing it under windows
    It is Inevitable.....


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    Grizzled old-timer! Deadlight's Avatar
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    Right then!

    Í have a folder (c:\documents andsettings\all users\DRM( under XP which I'm trying to delete it, but I can't. Now, I can't see this is folder in explorer, even with 'hidden folders' turn on, ie. I can see the 'hidden' Templates and the Application Data folders.

    Now, you think it's not there, but if I try to create a new DRM folder, I get told 'this folder already exists'. If I enter the whole folder patch into a command prompt, I get taken into this folder, without ptoblems. If I even take a disk surface tool such as R-studio, it shows me the folder *and* the contents of it!

    So, as it looks like a FAT problem, and I trying reboot into safe mode, check the disk and fix any problems, but no luck. Now, it's been put to me that'd another OS might see thia folder. Fine - but the two hard disks are on the nvidia raido sockets, in raid 0 configuration!

    So there y'go!
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    Well that's a system folder then, the same way you wont be able to create a folder in the root of a drive called 'System Volume Information'.
    To err is human. To really foul things up ... you need a computer.

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    silly question - you ARE logged in as someone who has access rights to that folder, right? I know it's in the All Users profile, but... stranger things have happened at sea.

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    Grizzled old-timer! Deadlight's Avatar
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    Yep - as Admin.
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    Agent of the System ikonia's Avatar
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    I would get MS support from someone rather than try messing with knoppix for this situation.

    booting from a windows cd and deleting the folder, is that possible.

    Also your using fat under windows ??
    It is Inevitable.....


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    Did you miss my post?
    To err is human. To really foul things up ... you need a computer.

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    who me ?
    It is Inevitable.....


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    Grizzled old-timer! Deadlight's Avatar
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    I'm using NTFS.

    FAT = File Allocation Table
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    I use mdadm to set-up raid partitions under Linux and then mount as normal

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    Quote Originally Posted by Deadlight View Post
    I'm using NTFS.

    FAT = File Allocation Table
    FAT is the name of a file system, referring to its method of indexing files on the disk, NTFS uses something completly different, which wikipedia claims is called a B+ tree.

    That said, unless you have no data you really want on that disk, id give it up as a bad job, its hit and miss enough rebuilding a raid under a different windows install, never mind a whole new OS.

    Also, since the purpose of this is arguably of dubious legality i dont think you should really be discussing it on hexus. However, that said, doing it from the recovery console should work

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    run "dmraid -ay" as root

    then mount something in /dev/mapper someplace handy (e.g. "mount -t ntfs-3g -o rw /dev/mapper/myraid /media/mountpoint")

    never used dmraid, so no promises

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