The following sysinstall script is modified to allow the user
to switch installtion media during any stage of installation.

1) If you have linux already installed, then mount a2 and copy
this version of sysinstall onto it:

% mount /dev/fd0 /mnt
% cp sysinstall /mnt/bin/sysinstall
% umount /mnt

Then just boot a1 regularly, follow instructions until you
have inserted a2 and are at the user prompt.  Then copy
this new sysinstall onto the old one:

% cp /user/bin/sysinstall /bin/sysinstall

and just continue about with the installation.  The usual prompt
that asks you to insert disk xx to the floppy drive will also
present you with the option to change the installation device.

2)  If you do not have linux installed, then just copy the new 
sysinstall onto an msdos floppy disk.  Since you are going to
need the option of chaging floppy media, you have two drives.  
So do this on a floppy for the media you cannot boot a1 from.

Boot from a1 and continue to a2 until you get to the prompt.  Insert
the prepared msdos floppy to the other floppy drive, and type:

% mount -t msdos /dev/fd1 /mnt
% cp /mnt/sysinstall /bin/sysinstall
% umount /mnt

and continue about with the installation.


NOTES:  

1) /bin is mounted on a ram drive.  Hence, the chages are lost.
If you want to install again for some reason, you will have to copy
the sysinstall again onto /bin/sysinstall

2) The modifications to sysinstall are minimal, only touching the area
where the user is prompted.  When time comes to insert the freshly formatted
floppy to prepare the boot floppy, the installtion device will revert to 
/dev/fd0


Hope this helps,
Tomer
tguez@cs.tufts.edu


