Partition a Small HD

[Mauricio <supremedalek@hotpop.com>]

	Since I was bored, I slapped my old 2.5GB HD in my SS20 and 
decided to install debian in it.  During the installation process, I 
was trying to partition the HD and it seems I am having a problem 
making the partitions end at the cylinder boundary:

Command (m for help): p

Disk /dev/sda: 19 heads, 80 sectors, 2733 cylinders
Units = cylinders of 1520 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sda1             1      1025    778969   83  Linux
Partition 1 does not end on cylinder boundary:
     phys=(1023, 18, 16) should be (1023, 18, 80)
/dev/sda2          1026      1370    262200   82  Linux swap
Partition 2 does not end on cylinder boundary:
     phys=(1023, 18, 16) should be (1023, 18, 80)
/dev/sda3          1371      2733   1035880   83  Linux
Partition 3 does not end on cylinder boundary:
     phys=(1023, 18, 16) should be (1023, 18, 80)

Since I have not done this in millenia (i.e. since SunOS days), how 
do I find out where the cylinder boundary is?