Re: tempoarily changing startup disks on old macs
- From: dempson@xxxxxxxxxxxxx (David Empson)
- Date: Wed, 25 Apr 2007 01:19:05 +1200
SlickRCBD <slickrcbd@xxxxxxxxxx> wrote:
An aquantance of mine just gave me a copy of an OLD game that I've
wanted to try after seeing it but couldn't afford it at the time (I was
in school and too young to have a job). He cautioned me that it doesn't
work well under Mac OS 8 or 9, and that I'd have to use System 7.X. I've
pulled out the restore CD and copied the system files onto another
partition of my old powermac 6500, but would like to keep my current
setup as the default boot. Is there any way to temporarily override the
startup disk settings, or get prompted for the startup disk at boot time
instead of having to switch it back and forth in the control panel,
which would be a perment switch? I use the 6500 as both a server and a
TV set, so I'd prefer to have it boot to OS 8.6 automatically and only
boot to 7.6 temparily without having to remember to switch it back. Is
there any way to call up the startup disk list the way you can call up
the Extension Manager by holding down Space Bar?
The built-in startup disk selector was added around late 1999
(slot-loading iMacs, early PowerMac G4, last model of PowerBook G3). The
6500 is way too old to have this feature, and I'm not aware of any
keyboard shortcut which gets into the Startup Disk control panel while
booting.
I can only think of two ways to achieve something like what you want to
do.
1. Boot from CD for the older OS.
This is only going to work if the application will run under the minimal
version of the system software which is running while booted from CD,
and doesn't require write access to the startup volume.
2. Connect a second hard drive, install the older operating system on
that, then temporarily disable the main hard drive to boot from the
second one.
Holding down the Cmd-Option-Shift-Delete key combination at startup will
bypass the primary internal hard drive in most Mac models. In order to
boot you would need another hard drive (which would need to be connected
externally with a 6500).
You can't use a second partition on the same hard drive - this key
combination makes the computer ignore the entire drive. It will only be
visible in Drive Setup after startup, and will not appear in Finder.
--
David Empson
dempson@xxxxxxxxxxxxx
.
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