Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!nrl-cmf!ukma!cwjcc!tut.cis.ohio-state.edu!rutgers!att!mtuxo!mtgzz!drutx!druhi!dlm
From: dlm@druhi.ATT.COM (Dan Moore)
Newsgroups: comp.sys.atari.st
Subject: Re: Hard disk partitioning
Message-ID: <3877@druhi.ATT.COM>
Date: 1 Feb 89 16:26:19 GMT
References: <2193@van-bc.UUCP>
Organization: AT&T, Denver, CO
Lines: 57

(This is a repost since it didn't seem to make it off the local system
the first time.)

in article <2193@van-bc.UUCP>, rthurlow@van-bc.UUCP (Rob Thurlow) says:
> Oh, if somebody has the docs on installing HFS on a hard disk under Magic
> Sac REAL handy, I'd not complain if you sent them along :-)
	The following is from memory but it should be at least 90%
correct.  (I haven't done this since I left Data Pacific last spring.)

	1) Format two MAGIC MFS floppies.  One one place Finder and
System.  On the other place Finder, System and Hard Disk 20 version 1.1. 
	2) You need 2 Magic Sac partitions on your hard disk.  The first
should be a small (under 1 meg) MFS partition.  The second is the HFS
partition and can be up to 15 Meg.  NOTE: 16 Meg partitions work but
there is some wasted space.  The Magic Sac does not support Supra's
extended partitioning scheme (more than 4 partitions) so the Magic
partitions must be in the first four partitions on the drive.  If you
are using Atari's hard disk software the Magic partitions must be after
the GemDos partitions, with Supra's or ICD's you can order the
partitions any way you want to.
	3) Load the Magic Sac, enable the hard disk, do not enable boot
from hard disk.  Boot using the first floppy (Finder/System, no HD20). 
After the Mac(tm) is up press shift-F3 to mount the first hard disk
partition.  Copy Finder, System and HD20 to that partition.  Eject the
hard disk and reboot.
	4) Load the Magic Sac, enable the hard disk, do not enable boot
from hard disk.  Boot using the second floppy (Finder/System/HD20).  You
will see a "Hard Disk 20 Startup" message in the "Welcome to Macintosh"
dialog.  You will then get a flashing A asking you to eject the startup
floppy.  Eject it.  The boot will continue from the first hard disk
partition.  When Finder is loaded press shift-F4 to mount the second hard
disk partition.  Copy Finder/System/HD20 to the HFS partition, eject
both hard disks and reboot.
	5) Load the Magic Sac, enable the hard disk, enable boot from
hard disk.  You should boot directly to the second hard disk partition. 
If you need to access the first partition just press shift-F3 to mount
it.

	Always remember to eject the hard disk partitions before
shutting off the ST.  If you forget you may crash that partition which
is a real pain to fix.  Also be sure that the both partitions have the
same versions of Finder and System, mixing different versions causes
lots of very weird things to happen.
	You need Finder 5.3 or 5.4 with System 3.2 for this to work. 
Older Finder/Systems don't have HFS support, later Finder/Systems are
not designed to work with the 64K ROMs without a lot of playing with
ResEdit.
	There is a bug in Finder 5.3 when running on the Magic Sac, the
eject command doesn't work.  To eject a disk under Finder 5.3 just drag
the disk icon to the trash can.  Finder 5.4 doesn't have this problem.


				Dan Moore
				AT&T Bell Labs
				Denver
				dlm@druhi.ATT.COM
				dlm@druwy.ATT.COM