[Bug 32529] Re: Installer corrupting partition table

[Phillip Susi]

This bug is extremely old and I find it hard to believe that it would
still be happening without many people reporting it, so I am going to
venture a guess that it was fixed a long time ago.  Is anyone still able
to reproduce this?


** Changed in: parted (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/32529

Title:
  Installer corrupting partition table

Status in “parted” package in Ubuntu:
  Incomplete

Bug description:
  Installer for Ubuntu Dapper flight 4 corrupted my partition table by
  changing the starting cylinder of my windows partition. I am not
  really sure if this bug should be against the installer or against
  parted.

  Here is the output of fdisk -l before installing dapper:

  
  Disk /dev/hda: 80.0 GB, 80026361856 bytes
  16 heads, 63 sectors/track, 155061 cylinders
  Units = cylinders of 1008 * 512 = 516096 bytes

     Device Boot      Start         End      Blocks   Id  System
  /dev/hda1               1        1938      976720+  83  Linux
  /dev/hda2           52801      155056    51536520    5  Extended
  /dev/hda3   *        1939       52801    25634920+   c  W95 FAT32 (LBA)
  /dev/hda5           52802       62491     4883728+  83  Linux
  /dev/hda6           62492       72181     4883728+  83  Linux
  /dev/hda7           72182       74126      979933+  82  Linux swap / Solaris
  /dev/hda8           74126      155056    40789003+  83  Linux

  Partition table entries are not in disk order

  And here it is after running the dapper installer:

  
  Disk /dev/hda: 80.0 GB, 80026361856 bytes
  16 heads, 63 sectors/track, 155061 cylinders
  Units = cylinders of 1008 * 512 = 516096 bytes

     Device Boot      Start         End      Blocks   Id  System
  /dev/hda1               1        1938      976720+  83  Linux
  /dev/hda2           52801      155056    51536520    5  Extended
  /dev/hda3   *        1945       52801    25631707+   c  W95 FAT32 (LBA)
  /dev/hda5           52802       62491     4883728+  83  Linux
  /dev/hda6           62492       72181     4883728+  83  Linux
  /dev/hda7           72182       74126      979933+  82  Linux swap / Solaris
  /dev/hda8           74126      155056    40789003+  83  Linux

  Partition table entries are not in disk order


  I can provide 512 byte images of the bootsector before and after if
  required.

  Current usage of the partitions is:
  1 /boot with grub on it
  3 windows
  5 Mandrake - now overwritten with Ubuntu dapper flight 4
  6 Ubuntu Breezy
  7 swap
  8 /mnt/data

  
  When I first ran the Ubuntu dapper installer, I chose manual partitioning. I was presented with a menu offering partitions 1, 5, 6, 7, 8. I was surprised not to see #3 listed, but carried on. I told the installer not to mount 1, 6, 8, and to format 5 and use it as root. Looked like this:
  1 K ext2
  5 F reiserfs /
  6 K reiserfs
  7 F swap
  8 K reiserfs

  Strangely, When choosing OK, I got a warning saying: "This ext2 file
  system has a rather strange layout! Parted can't resize this (yet)."
  This was a little worrying, since I didn't ask to resize anything, I
  said not to mount #1.

  Anyway, I chose to continue and got this message:
  "Test of ext2 partition #1 had uncorrected errors. Go back to correct?" and I chose not to go back.

  After all that, #1 was not re-sized, but #3, my windows partition was.
  By moving the start cylinder (something I understand parted can't do
  yet).

  I admit that the partition entries are unordered due to previously
  deleting windows and splitting the space into two, but I don't think
  that's an excuse for this. It may be the cause of the confusion
  though.

  P.S. the original partition table was (IIRC) last edited by cfdisk.

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