Disk partitions and FreeDOS

The first thing anyone has to deal with when installing a new operating system is what disk partitioning scheme is going to be used.

I have thus far been paranoid and only used FreeDOS with a FAT16 filesystem. This limits partition sizes to 2G (which has been fine thus far, since I am playing with an ancient 1.3G disk). This limit is because FAT16 allows only 65,525 clusters which are each only 32K in size (at the maximum). However, the claim is that FreeDOS fully supports FAT32, and will even boot from a FAT32 partition. This allows partitions as big as 32G if I understand things right. A variety of limitations accessing large disks exist, largely in the BIOS of the motherboard used.

What I do to partition a disk in order to install FreeDOS is to boot the FreeDOS CD, and then run FreeDOS from the CD. Then I can run FDISK and do whatever I need to, then reboot the CD again and do the FreeDOS install. The installer with FreeDOS 1.0 may allow a more efficient scheme. Be sure and make the FreeDOS partition "active".


Have any comments? Questions? Drop me a line!

Adventures in Computing / tom@mmto.org