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On Thu, 16 Mar 2006 14:54:33 -0800, Robert Persson wrote: |
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> On Thursday 16 March 2006 09:15 Nick Smith was like: |
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>> i just accidentally blew away my ntfs partition with the gentoo |
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>> install cd (formatted hda1 instead of hdb1) is there a way to unformat |
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>> if it was just done? like undo the format information? i formatted |
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>> with ext3. |
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> |
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> IMPORTANT: Please don't follow the following advice until you have had a |
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> second opinion from someone else—I think this will work, but I can't swear it |
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> will: |
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> |
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Good advice... |
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> Reformat to NTFS and then use a recovery tool. If I remember right, windows |
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> fdisk is pretty insistent on doing a low level format, so you would be safer |
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> using the gnu tool for formatting. I don't know whether the gnu ntfs tools |
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> are up to the recovery job, or whether you need to use something proprietary. |
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> |
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No. fdisk does not formatting at all. It just writes to the partition |
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table. People run fdisk /mbr for example to rewrite the master partition |
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table. |
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I still think it may be better to edit the partition table directly and |
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change the filetype of the partition to NTFS: type 0x07. |
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Even if cfdisk you can change the type on the fly. Then reboot and see if |
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you can mount it. fdisk is non-destructive to the partition's data. It's |
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the format command where you have to make a choice to do a quick format or |
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a complete one. A quick format does not erase data, but does clean out the |
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fat tables. If that happens, you will have to extract the data manually. |
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Try the cfdisk trick first. Then, experiment with some of the myriad |
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Windows tools. |
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Remember to make a full image of the partition in question and the |
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partition table before trying these changes so you can go back to square 1 |
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if need be. |
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> If you are lucky you may be able to read the old data |
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on the newly |
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> created partition without needing to use a recovery tool (I was able to |
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> do that with a linux partition once—can't remember if it was reiserfs |
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> or ext3), but I would copy all the files somewhere safe in any case |
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> because even very minor corruption could come back to haunt you later |
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> (as many theologians never tire of reminding us). -- Robert Persson |
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> |
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> Conspiracy Bears: |
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> Once upon a time there were lots of conspiracy bears... |
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-- |
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Peter |
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-- |
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