> - a boot block (MBR) containing a valid description of the FS (number and > size of FAT[s], CHS geometry, etc. - not all of which can be tuned > using standard tools probably) - "BIOS Parameter Block" is what > you want to look for (and compare against actual values in a > standard size floppy image)
The CHS information is usually ignored by the driver and might be bogus. It sure is ignored if the partition is accessed directly by the operating system (from a file or RAM or ROM). Note that the FAT file system internally uses a sector addressing scheme like LBA: there is a sector number that counts the sectors starting from zero. Nothing else. The FAT driver doesn't care about heads and cylinders that might be addressed at a lower level. The boot block is also called boot sector, but not MBR (Master Boot Record). The MBR isn't contained in any partition. > - one or two FATs (starting with the magic code), big enough for your > *data* blocks You certainly want only one if you have to utilize a very small partition. Regards, Christian ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
