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How to factory reset a Macintosh Classic without installation media?

Fire-Flare

Experienced Member
Joined
Dec 17, 2009
Messages
267
Location
Washington State
Is there a way to reset the system to factory settings without the original installation media?

I'd hate to have to wipe the hard drive because it seems to work just fine, but I can't keep any of the previous owner's data on it.
 

Timo W.

Veteran Member
Joined
Nov 25, 2014
Messages
1,413
Location
Germany
You could simply delete everything but the System folder. Or just reinstall. It came with 6.0.7, which are only two disks anyway.
 

SomeGuy

Veteran Member
Joined
Jan 2, 2013
Messages
4,176
Location
Marietta, GA
The old user's name would still be on the system, and it didn't come with the disks. :(
Commonly users would customize the name of the hard drive volume. If that is what they did, then just click on the hard drive icon and rename it.
 

SomeGuy

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Jan 2, 2013
Messages
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Location
Marietta, GA
Some of those 1.44mb image are technically in uncompressed Apple Diskcopy format. Winimage will open them fine, but raw-writer type programs will barf unless you prune the header and footer. Just opening and re-saving them as IMA using Winimage will do that if needed.

Now 800k/400k disks are a whole different bag of worms. The only way to write those from a PC is using a kryoflux.
 

ClassicHasClass

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Mar 22, 2013
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Sunny So Cal

NeXT

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Oct 22, 2008
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Kamloops, BC, Canada
Mac classics are if I recall the only macs that can boot from ROM. CMD + OPTION + X + O after the chime makes it boot a minimal version of system 6. I don't recall though if there was enough space in ROM however to fit HD SC Setup or the smarts to handle SMI's.
 

nazia08

New Member
Joined
Nov 5, 2016
Messages
1
Location
Pakistan
Yes you can use Linux, but it's "ssɐ ǝɥʇ uᴉ uᴉɐd ǝƃnɥ ɐ".
I've tried but it's basically impossible on a MAC Classic.
People have done it, but I certainly can't.
 

Fire-Flare

Experienced Member
Joined
Dec 17, 2009
Messages
267
Location
Washington State
Okay, I've made a set of installation/upgrade floppies. Now I'd like to do a factory reset.

Will setting the system to boot from Floppy allow me to erase the hard drive, restart, then install from scratch?

I don't want to brick the machine in the process...
 

Timo W.

Veteran Member
Joined
Nov 25, 2014
Messages
1,413
Location
Germany
Will setting the system to boot from Floppy allow me to erase the hard drive, restart, then install from scratch?

I don't want to brick the machine in the process...
Yes, it will. Also, you can't brick a Classic, as you can always boot from floppy or from ROM.

Boot from disk 1, use the HDD setup to format the HDD, then start the Installer/Updater to re-install the system. That's it. There's not much that can go wrong.
 

RWallmow

Veteran Member
Joined
Oct 19, 2006
Messages
1,791
Location
Anoka, MN USA
You're not going to brick it, there's no flashable firmware involved, worst you do is mess up the install, and then you can just start over and install it again.

Use the Disk Tools disk, "Apple HD SC Setup" utility will let you partition and format the hard drive.
 
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