Dan Crutcher wrote: > Subject: [MacGroup] Bootable external HD for Tiger and Leopard > To: Macintosh topics <[email protected]> > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes > > I have a 120 GB external firewire drive that I would like to use as a > startup-and-repair disk for a mixed group of Macs, some of which have > Intel processors and are running Leopard, others of which have PowerPC > processors and are running Tiger (and don't have enough RAM to run > Leopard). > > My intention was to have two partitions on the drive. On one of those > partitions I would install Leopard and use that partition when > starting up one of the Intel/Leopard machines; on the other partition > I would install Tiger and use that partition when starting up one of > the PowerPC or any machine that didn't meet Leopard requirements. > > ...snip... > Hi Dan! Actually, this is possible but a little bit convoluted. It is true that an entire disk (no matter how it is partitioned) can only be formatted entirely APM or GUID. Normally Intel Macs want to see GUID formatted disks but can indeed startup from APM partition disks. I believe the method I saw on MacOSXHints was to create an Intel Leopard installation (for instance) on a GUID formatted disk and then use Carbon Copy Cloner or Disk Utility to clone that installation to an APM formatted disk (or disk partition). So, in other words in your case, create two APM partitions on your external disk, install Tiger/PPC on one partition (more on that later), and then clone a previous Intel GUID Leopard installation to the other APM partition. You obviously may need another disk/system unless you use a disk image as an intermediate step.
As far as your Tiger boot problem, you should normally be able to a boot and install an original Tiger retail disk on an external disk connected to an Intel system (I can and have on a Intel Mac-Mini), although some OSX installation disks are machine specific. However, if you wish to boot the Tiger partition on a PPC machine as you do, I believe you HAVE to install it on a disk on a PPC machine and then clone that partition to another disk as above to make it a universal Tiger/Leopard/PPC/Intel boot/install disk. As an aside, you can even clone an actual OSX installation disk (either Tiger or Leopard) to an external disk to use for installations, subject to the APM/GUID limitations/trickery above. There are a few other hints and kinks to the above method, but that is the basics and does work. I hopes this helps. Look on MacSurfer or MacOSXHints for further info. -Ken _______________________________________________ The next Louisville Computer Society meeting will be November 25 at MacAuthority, 128 Breckinridge Lane. Posting address: [email protected] Information: http://www.math.louisville.edu/mailman/listinfo/macgroup
