Public bug reported:
I tried this twice before I realized what was happening and preallocated
partitions for Ubuntu. I used the Kubuntu 6.06.1 LiveCD for
installation. My partition setup on hda looks approximately like this
prior to starting custom partitioning.
Disk /dev/hda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 534 5755 41943040+ 7 HPFS/NTFS
/dev/hda2 1 533 4281291 b W95 FAT32
/dev/hda3 5755 5877 982639+ b W95 FAT32
/dev/hda4 5878 24321 148151430 5 Extended
/dev/hda5 5878 9525 29302528+ 83 Linux
/dev/hda6 9536 9769 1959898+ 82 Linux swap /
...
Partition table entries are not in disk order
If I add three partitions (10g for /, 3g for /var, 3g for /home) and
mark them for formatting, then continue, the amount of space in partion
4 (the extended partition) gets whacked. After installation is complete
I only have something like 60g allocated to the extended partition! So I
can't use remaining space on the disk. In order to cure the problem, I
have to delete all partitions except 1 & 2, then add partition 3 as
primary and partition 4 as extended to get back the free space. I then
preallocate the original partitions 5-6 and partitions 7-9 for Ubuntu
and rerun the installation. Unfortunately, I don't know at what point in
the process (allocation of partitions 7-9, or later during the
formatting process) the extra space disappeared from the extended
partition.
History. The disk originally consisted only of partitions 1 & 2 (WinXP),
but I shrunk partition 1 during an earlier Ubuntu install to make
space, so the partition resizing logic is suspect as well, especially
since it appears that partition 3 was assigned space overlapping the
final cylinder of partition 1!
** Affects: Ubuntu
Importance: Untriaged
Status: Unconfirmed
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Partitioner corrupts extended partition avaialable space
https://launchpad.net/bugs/57780
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