I have two LBA-enabled hard disks on my testbed, a 9,5 GB one, where resides MS-DOS at 200 MB partition, Windows 95, Windows 98 etc., and a empty 4GB hard disk, also LBA-enabled. Both HDDs are with UDMA 2. I've created to the second hard disk a 900 MB FAT partition for the upcoming installation of OS/2...
So, just were installing OS/2 Warp 4 to my testbed. First, OS/2 FDISK could not work with partitions (except deleting) on my second 4GB hard disk, it said "the partition table could be corrupted", even that I was using LBA all the time. One hour killed by tweaking, next I've downloaded two patches to the install disks. Now it seems to be alright, altough for a strange reason I could set the second HDD's FAT partition "startable", but not "installable". Two hours killed again by searching on the internet. So I downloaded the OS/2 CD version and all the patches [three hours killed btw], because I didn't have like 40 "1,8MB" diskettes available. But hey - 1st disk's 1st partition seems to be "installable", but 2nd disk's 1st partition (I tried to resize it to 200 MB FAT16) didn't. Weird

So I deleted the shared WinNT pagefile to free the space on the MS-DOS 2nd disk's partition (NTLDR is there), resized the partition to be able to move MS-DOS back to the 1st partition and leaved the now-former 900MB DOS partition to OS/2. 30 minutes killed. Coudln't set the 2nd disk's partition "installable" again!
So I disabled detection of primary master disk (where ms-dos and all things reside) and OS/2 *did* detect the HDD


After this installing and such, I've plugged back again the primary master disk and added a new boot option - OS/2 from second hard disk.
(I'm using opensource bootloader GAG with chainloaded NTLDR - NTLDR for loading DOS and Windows NT kernels. They exist both in the primary master disk [the first disk, the 9,5GB one], NTLDR is on the MS-DOS partition).
So, the worst installation program (for a OS) is for me the OS/2 one. Even Win98 install program wasn't so "hyperactive"...

Do you have met with similar weird installation programs (OS or software) too?
Regards
inflater