I have got two HDs, each one 40 GB. Connected to one cable to IDE0 (one hard disk master and the other is slave).

A- First HD (master or hda) is divided into :
1/A- 15 GB NTFS for XP.
2/A- 5 GB FAT32 for Storage.
3/A- 20 GB NTFS for win2003.

I had already installed both windows (XP and 2003).


B- Second HD (slave or hdb) is divided into :
1/B- 20 GB Solaris (hdb1,,,to be installed later).
2/B- 5 GB NTFS for Storage (hdb2).
3/B- 500 MB Linux swap (hdb3).
4/B- 14.5 GB ext3 Linux (hdb4).


When I started to install Linux FC4, I reached the option for :

Install Boot loader record on:
/dev/had Master Boot Record (MBR)

/dev/hdb6 First sector of boot partition.

Why do I have hdb6,,,,it should be hdb4,,,,Am I right ?

it means you are installing fc4 in the second logical partition of second hard drive, that is hdb6, why read this link

I forgot to mention that all the partitions that I created, are primary partitions. I have not created any logical partitions,,,,I will post fdisk -l to verify that.