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Re: SCSI HD IIGS: Question - How to boot both 8-bit and 16-bit software?
In article <CyMFs9.9F6@presby.edu>, Stephen Buggie <sebugg@presby.edu> wrote:
>
> What I want to do is to be able to boot my 8-bit software (still used
> heavily), _and also boot_ from the hard drive some 16-bit applications
> such as games, etc.
>
> QUESTIONS:
>
> Can both ProDos-8 and GS/OS be booted from the same HD partition?
Yes. If you use IIgs System 6.0.1, you can press the '8' key before
the graphics "boot progress" screen appears, and you will go straight
into ProDOS-8. This method will only work on a IIgs - it doesn't allow
the hard drive to be booted on a IIe. The first file in the root
directory with a name ending in ".SYSTEM" will be launched (probably
BASIC.SYSTEM, unless you have renamed it or added another file first).
Another option is to install GS/OS on the drive, then copy (NOT move)
the file called "P8" in the System folder into the root directory.
Rename the file called PRODOS to GSOS (or something similar) and
rename P8 to PRODOS. The hard drive will now boot into ProDOS-8 and
automatically run the first .SYSTEM file in the root directory
(probably BASIC.SYSTEM). If you want to go into GS/OS, just launch
the GSOS file.
I used this method for quite a while, with my QUITTER.SYSTEM program
as the first .SYSTEM file. The hard drive boots into ProDOS-8 and
ran QUITTER. From there, you can use the Birds Better Bye program
selector to run any ProDOS-8 programs, or launch the GSOS program to
start GS/OS.
QUITTER also provides a convienient way to boot other slots, and can
be launched from GS/OS to run ProDOS-8 applications, then used to
return to GS/OS again.
Ideally, you should copy QUITTER.SYSTEM onto the hard drive before
installing the system software. This ensures that it appears as the
first item in the root directory.
The distribution version of QUITTER.SYSTEM uses the name "QUITTER".
You should rename it to "QUITTER.SYSTEM" so that ProDOS will launch it
automatically.
> If they must be on separate partitions, what will be the best way to do it?
> (I figure 8 megs for ProDos-8 and 23 megs for Prodos-16.) Which partition
> should go first?
You don't need different partitions - ProDOS-8 and GS/OS use the same
ProDOS file system (GS/OS can also use other file systems such as HFS,
but there isn't much point on such a small drive).
Just make sure you make appropriate use of subdirectories to organise
your applications and files.
> I have a six disk set of backups called "System 6.0.1" but no docs. Is this
> version better than GS/OS?
GS/OS is only one part of the system software (the operating system).
The other major part is the toolbox, then there are the applications,
utilities, desk accessories, control panels, etc. Together they form
the system software, and 6.0.1 is the latest version.
> I also have a "System 6" book published by Quality Computers. Is System 6
> the best? Is it hard to install on the hard drive?
It is very easy. You need to have the hard drive initialized and
partitioned (if necessary) before trying to install the system
software. You should be able to do this by booting the "System Disk"
included with 6.0.1.
You should then boot the "Install" disk. Once in the Installer, make
sure the selected disk is your hard drive.
There are two methods you can use to install the system software.
1. Click on "Easy Update". The Installer will see that you have plenty
of disk space and will install the complete system software.
2. Click on "Customize". A list of installation options will appear.
You should choose "*System 6:Hard disk or FDHD", which is a full
installation of the System Software, then click on the "Install" button.
In both cases, the Installer will prompt you to insert other disks as
required (it will need the "Install", "SystemTools1" and
"SystemTools2" disks).
Within the Customize option, you can also choose other items to be
installed, such as the Advanced Disk Utility and Teach applications,
additional device drivers, file systems, etc.
You can add other items at a later stage - just boot the Install disk
again, go to Customize, make sure the correct destination volume is
selected, then pick the desired items to install and click on "Install".
--
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand