> In doing so, I examined the current setup and was surprised 
 > to find that for the last 2 years, the partition containing 
 > my OS/2 operating system is on the 1GB drive starting at
 > cylinder 1300 and ending at cylinder 1607.
 > The OS/2 book states that if a partition is going to
 > contain an operating system, the partition must be in the
 > first 1024 cylinders.
 > Being outside that range, OS/2 shouldn't be able to boot
 > but I have never had a problem with it.
 > Are there exceptions to the rule stated in the book?

Those requirements are prior to and not allowing for the newer LBA support
that exists on all modern (~1996) motherboards.

These days with LBA as the default (BIOS auto-detect will select LBA for
LBA supporting HDD's) it's normal to use 1.6GB or larger single partitions
for all OS's.

Regards.

--- Msgedsq/2 2.2e