Xref: utzoo comp.sys.mac.hardware:3865 comp.sys.mac.system:518 Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!ames!excelan!barrey From: barrey@ka.excelan.com (Barrey Jewall) Newsgroups: comp.sys.mac.hardware,comp.sys.mac.system Subject: Re: Remember the HD20? How do I use it? Message-ID: <1396@excelan.COM> Date: 12 Jun 90 18:08:33 GMT References: <1990Jun12.130417.4698@watdragon.waterloo.edu> Sender: news@excelan.COM Reply-To: barrey@novell.com (Barrey Jewall) Followup-To: comp.sys.mac.hardware Distribution: na Organization: Novell, Inc., San Jose, Califonia Lines: 64 In article <1990Jun12.130417.4698@watdragon.waterloo.edu> bwbecker@watdragon.waterloo.edu (Byron Weber Becker) writes: >I've picked up an old HD20 -- a pre-SCSI hard disk -- for >a friend's 512K Mac. I've got the HD20 init. Questions: > >0. Is it as simple as connecting the HD20 to the floppy > port and putting the init in the system folder? In a word, yes. >1. Can the Mac be booted off the HD20? This shouldn't be a problem if the mac has the new (Mac Plus, 512E) ROMs, If the 512 has an 800K Internal Drive, it probably has the new ROMs, If not, you must boot from a floppy with the HD20 init in the system Folder. >2. What's the latest system/finder that can be used? As far as I am aware, Finder 5.3, System 3.2 >3. Can the HD20 have a HFS, or does it need to be the old > flat file scheme? Not Only CAN it have HFS, It is required. The file HD20 is a RAM-Based version of HFS, whereas the new ROMs contain the HFS code already, and thus the HD20 init is not required with them. >4. If it must be a flat file, what techniques can be used > to keep data organized? n/a >5. What is the latest system that can be used with a Mac > 512K (400K disk drives) WITHOUT the HD20? Finder 5.3, System 3.2 The best way to keep this a useful system, IMHO, is to upograde to an 800K internal Drive, with the new ROM's. This will free up some of your RAM, and will let the HD20 boot from itself. By the way, I know some people have had limited success with System S/W 5.0 and above on a 512K Mac, but the 5.3/3.2 combo is Apple's suggested setup. >Thanks >Byron Weber Becker >bwbecker@watdragon.waterloo.edu If this helps, you're quite welcome. Barrey- +===============================+================================+ + "Well-informed people know it is impossible to transmit the + + voice over wires and that were it possible to do so, the + + thing would be of no practical value" + + Editorial in the Boston Post, 1865... + +================================================================+ + Barrey Jewall ++ "My opinions are my opinions" + + Information Services ++ (rather self-evident, eh?) + + Novell, Inc. ++ + + San Jose, Calif. USA ++ barrey@novell.com + + (408) 473-8623 ++ + +===============================+================================+