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Asked: 2011-06-14 09:19:30 +0800 CST

Why does partition table corruption even happen?

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I created an extended partition and tried to add two NTFS units to it. Instead two 125 GB partitions, I got – according to Disk Utility – 2 X 982 GB partitions plus a 14574534 TB one (wahey!). I don't remember to have done anything weird.

The case is:

  • Neither Disk Utility, GParted or fdisk will let me fix/delete the extended partition, and in addition,

  • My LiveCD won't boot, although the BIOS order is correct and it worked perfectly before Ubuntu was installed. The hard drive installation of Ubuntu will start instead (edit – I got it to boot but having the drive unmounted does not fix the issue).

I guess I could try even more tools but I don't think this is that much of an unusual problem... what's the straight-forward solution for this?

Thank you in advance.

partitioning

3 Answers

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  2. If the CD doesnt work did you try to create a live usb stick and start a session using the usb stick?

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  3. Best Answer

    Okay so I managed to fix this, but in a pretty heterodox way I think.

    As I said, my problem in particular consisted in an extended, infinisized-yet-empty, useless partition that couldn't be deleted with any of the usually recommended GNU tools for these cases.

    It could be deleted with the Windows 7 installer. However, this messes up the whole partition table so you need to recover it using testdisk (no, I couldn't do this before the delete).

    After this, you need to recover your GRUB with a CD or so.

    I hope this helps someone in the future.

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