There have been boot problems with different Promise controllers with somewhat different symptoms. Mine is
00:11.0 Mass storage controller: Promise Technology, Inc. PDC20575 (SATAII150 TX2plus) (rev 02)
Promise PDC20319u SATA 150 RAID
OK - looks like we are dealing with two different sata_promise bugs.
Just for common information:
I just tried to install CentOS 5 on a computer with a Promise PDC20378 controler (non-RAID mode) and the installer hangs.
Best regards to all on this list.