🚀 go-pugleaf

In article <C1F7BD.77s@news.cso.uiuc.edu> jst50986@uxa.cso.uiuc.edu (Jack S. Tan) writes:
}roelle@uars_mag.jhuapl.edu (Curtis Roelle) writes:
}> I have the Service Pack installed on my system, if that makes any
}> difference. So, what is the proper way to create an OS/2 bootable 5.25"
}> 1.2MB flopy disk?

}This method may not be proper, but it does work:  format the diskette to a
}higher-capacity, nonstandard format.  Using FDFORMAT (available from various
}anonymous FTP sites), I was able to create a 1.47MB diskette, on which I
}created my boot diskette.  OS/2 is able to boot from such a disk, unlike
}DOS.  Also, when you are prompted for the install diskette in making the
}boot disk, you can use the boot disk from the CSD.  It seems to work also.

Yes.  It appears that OS/2 actually uses the BIOS Parameter Block on the
floppy disk (I think that's the data structure) instead of that horrid,
kludgy media byte.  Thus, it works with (almost) any geometry you can
manage to format onto a floppy disk.  I say almost because it doesn't
seem to understand double density, double track density (720K) 5.25
floppy disks -- it looks like it double steps the head as though it
was single track density.

Of course, such formats are officially "out-of-spec" so IBM evidently
thinks you shouldn't be able to format such beasts.  You must use
FDFORMAT under DOS (the "real thing," not a VDM).

Larry
-- 
Larry A. Shurr (las@cbnmva.att.com) speaking only for myself.
Norman, listen carefully.  I am lying.  Are you sure your circuits are
registering?  Your ears are green.  Logic is a little bird singing in a
meadow.  Logic is a wreath of pretty flowers which smell bad! - Mr. Spock