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  1. #1
    Just Joined! mr.MikyMaus's Avatar
    Join Date
    Feb 2005
    Czech Republic

    another "partition accident" problem

    I have made a little but almost fatal mistake : mkfs.ext2 /dev/hda
    I stopped the formating reflexively but partition table any maybe some data at the beginning of the disk were destroyed. Now what? I have not rebooted the coputer since and I still have access to all important data. I do not care about some gigabyte at the beginning of the disk.
    The original partition table image is stored somewhere in RAM. All I need is to get it back where it belongs. But I do not know how...Does anyone have some experience with such thing or at least an idea?

  2. #2
    Linux Guru
    Join Date
    May 2004

    Re: another "partition accident" problem

    Quote Originally Posted by mr.MikyMaus
    Does anyone have some experience with such thing or at least an idea?
    No and yes. I have read that on certain types of volumes, there are multiple copies of the partition table at certain known locations and if I recall correctly, it is possible to call for one of the alternate tables to be used by passing a parameter to the kernel. I can't recall the source, but I'll try. Meanwhile, this may help:

    From Linux Documentation Project:
    • 3.2.2. Linux own info and other hacks Kernel

      If you just destroyed your own partition table, but have not rebooted Linux : Don't reboot! You can still retrieve the partition information stored in the Kernel:

      cat /proc/partitions gives

      major minor #blocks name
      3 0 19535040 hda
      3 1 2096451 hda1
      3 2 4980150 hda2
      3 3 1 hda3 <----- this marks an extended partition
      3 5 4980118 hda5
      3 6 4972086 hda6
    //got nothin'
    ///this use to look better

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