Comment 3 for bug 324987

The previous experience was with the Jaunty alpha-3 live-CD.

The daily 0203.1 live-CD (amd64) displays the same behaviour, and in a much more simplified scenario. No use of LVM or encryption, just:

/dev/sda1 Windows Recovery ntfs ~9GB
/dev/sda2 Windows Vista ntfs ~28GB
/dev/sda3 Linux swap ~4GB
/dev/sda4 extended
/dev/sda5 Linux ext3 ~125MB
/dev/sda6 Linux ext3

And during manual partitioning assign sda5 to /boot/, and sda6 to /.

When the partitioning begins it fails silently an returns to the Wizard partitioning page.

Checking /proc/partitions reveals that both sda5 and sda6 are now missing:

Before:

major minor #blocks name

   7 0 690608 loop0
   8 0 390711384 sda
   8 1 9764864 sda1
   8 2 28738560 sda2
   8 3 4194304 sda3
   8 4 1 sda4
   8 5 122880 sda5
   8 6 347889719 sda6

After:

major minor #blocks name

   7 0 690608 loop0
   8 0 390711384 sda
   8 1 9764864 sda1
   8 2 28738560 sda2
   8 3 4194304 sda3
   8 4 1 sda4