Re: Apple IIe and Profile hard disk setup?

[pausch@saafNOSPAM.se (Paul Schlyter)]

In article <processoroverclocked-0807001800350001@dialup-napanet-206-81-102-22.napanet.net>,
Jon Bettencourt <processoroverclocked@33mhz.cjb.net> wrote:
 
 
> DOS 3.3 can only access disks up to 400K (and that's with a whole lotta
> modification).
 
Actually, it won't require that much modification.  Yes, you need a
modified RWTS to access your 400K disk.  And you need a properly DOS 3.3
formatted 400K disk.  But apart from that, no modification to the
remainder of the DOS needs to be done.  DOS has no hardcoded assumption
about the DOS disk (except that the VTOC, Volume Table of Contents,
should reside on the first sector of track 17) -- it reads the disk
geometry off the disk itself!
 
 
> You need ProDOS to access the hard disk.
 
Well, that depends.  Some harddisks were actually accessible from DOS.
Due to the limited size of DOS disks, the harddisk was partitioned into
multiple DOS "volumes", which were distinguished by adding the "V"
(volume) parameter to DOS commands accessing the hard disk.
 
Perhaps it was only the Corvus Constellation which implemented this
though?  That harddisk was 5 MBytes, and was divided into 35 or 36
DOS "volumes" of 140K each.
 
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