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Re: Partition support for FAT file system


Frank Pagliughi <fpagliughi@mindspring.com> writes:

> So then it's the IDE driver that should scan the partition table on
> the physical disk and export separate mount points for each? Would
> that be the proper way to go?

No, the generic disk layer already does all of this. It reads the MBR
from the disk, looks for a partition table and sets up its data
structures accordingly. 

Take a look in io/disk/current/src/disk.c, specifically the read_mbr()
and read_partition() functions. And the code in disk_lookup() which
selects the right partition.

In the same way that it shouldn't be done at too high a level,
partitioning shouldn't be done at too low a level either. Partitions
can exist on a wide variety of media, not just IDE disks.


-- 
Nick Garnett                                      eCos Kernel Architect
eCosCentric Limited    http://www.eCosCentric.com      The eCos experts
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