🚀 go-pugleaf

In <roelle.727715397@uars_mag> Curtis Roelle writes:
>Wanting to create an OS/2-bootable 5.25" 1.2MB floppy, and faced with
>several apparent choices for accomplishing that goal, I copied the
>following three files from os2-ftp.nmsu.edu:

I'm afraid it can't be done.  There's just no room.  An *absolute* minimum
system is about 1.3M of disk space.  If you have a second disk drive, you
can get away with it by moving some files to it and then pointing to them
in CONFIG.SYS via "B:\"; some of thse files include CMD.EXE, KEYBOARD.DCP,
and VTBL850.DCP (I think that's really it).  The next release of SE20BOOT
will include the ability to build a 2-disk BOOT system that should allow
you to do this automatically.

In article <19930123.035953.532@almaden.ibm.com> KENKAHN@PKSMRVM.VNET.IBM.COM (Kenneth A. Kahn) writes:

>In <roelle.727715397@uars_mag> Curtis Roelle writes:
>>Wanting to create an OS/2-bootable 5.25" 1.2MB floppy, and faced with
>>several apparent choices for accomplishing that goal, I copied the
>>following three files from os2-ftp.nmsu.edu:

>I'm afraid it can't be done.  There's just no room.  An *absolute* minimum
>system is about 1.3M of disk space.  If you have a second disk drive, you
>can get away with it by moving some files to it and then pointing to them
>in CONFIG.SYS via "B:\"; some of thse files include CMD.EXE, KEYBOARD.DCP,
>and VTBL850.DCP (I think that's really it).  

I successfully put UHPFS.DLL on B: (after extending the LIBPATH, of course).

>The next release of SE20BOOT
>will include the ability to build a 2-disk BOOT system that should allow
>you to do this automatically.

Thank heavens for that! OS/2 is _not_ going to get any smaller...

--
Gary.Woodman@anu.edu.au         This post made from 100% recycled electrons.

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.

Hope this helps.

-- 

Jack Tan                             If your parents didn't have kids,
jahk@uiuc.edu                          chances are you won't either.

In article <C1F7BD.77s@news.cso.uiuc.edu> jst50986@uxa.cso.uiuc.edu (Jack S. Tan) writes:
>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.

Or, if you're running FAT on ANY partition that is reachable from boot,
put the CMD.EXE and the HPFS.IFS onto the FAT partition and change the
CONFIG.SYS file on the boot disk to point to THOSE files.  Now the data
will fit on a 1.2.

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