Installing Potato with Promise RAID controller

[Jonas Wolz <jonas.wolz@freenet.de>]

Hi,

I'm trying to install Potato (2.2r2) on a box with two harddisks connected to 
a Promise PDC20265 controller in RAID 0 mode (the two harddisks appear like 
one, big harddisk).
With the UDMA66 kernel, the system boots up fine, and it recognizes a disk 
connected to the controller as /dev/hde, but the kernel thinks that /dev/hde 
has only the size of _one_ disk, not the sizes of _both_ disks together.
One effect of this is that the partition table is considered corrupt:
The primary NTFS partition is considered to extend over the end of the drive 
and the logical NTFS and FAT partitions inside a extended partition (where 
the linux partitions should go, too) are not found.

Has anybody a idea how to fix this, so that the correct size is recognized ?

TIA,

Jonas