🚀 go-pugleaf

> /* ---------- "512K Mac/800K Drive" ---------- */
> 
> 2.  Is there a way to format an 800K disk as an MFS disk?  If so, how
> does this relate to the above question with respect to existing
> applications?  Do I still need the HD20 file and the new system
> software? (BTW, I can't seem to get my 512K to format a single-sided
> disk as HFS no matter what I try - I have tried holding down the
> option key and all that - what am I missing?).
> 
> /* End of text from uiucdcsb:comp.sys.mac */

	In partial response to question 2.  To get HFS on 400K disks you will
need to use the HFS system (System 3.2, and Finder 5.3) and the HD20 file.  To
get the 400K initialized as an HFS volume you need to hold down the <option>
AND <command> keys during the ENTIRE initialization process.  That will give
you a 400K HFS disk.  Also if you want to make an HFS copy of an HFS disk you
will need to hold down the <option> and <command> keys during the entire copy
operation of the Finder.  Basically, if you want a destination disk to be an
HFS disk with a 512K Mac, and the above software you will need to hold the
<option> and <command> keys during the entire operation.

	A couple of notes.  An HFS disk (of any size) will not be readable by
any of your older systems so if you insert it when using an older system (or
an HFS system that was booted WITHOUT the HD20 file) you will get an initialize
dialog.  To avert disaster either make all you systems HFS or be very careful
about hitting the OK button on the initialize dialog.  If you use a RAMdisk you
do not need to copy the HD20 file over to the RAMdisk.  The HD20 file is only
needed during the initialization process to configure the system as an HFS
system.  This can save a few K and let you keep the RAM disk as small as
possible on your 512K.  Finally, don't format your boot disk as an HFS volume.
The 64K ROMs don't understand the HFS system until they are patched by the HD20
file.  If the startup disk is an HFS disk the old ROMs can't read the disk to
run the HD20 file.

	Hope this helps answer some of your questions.


Andy Spry	"Master shoehorner of software."


	 ***>>>---------------------------------------------<<<***
	 ***>>>  The stupidest reason for buying an IBM is  <<<***
	 ***>>>	      because everyone else has one.	    <<<***
	 ***>>>	   Especially if it is the only reason!	    <<<***
	 ***>>>---------------------------------------------<<<***


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