Model M5521, Indigo 450Mhz iMac

Last week I just bought a Model M5521, Indigo 450Mhz iMac for about $20 at a local thrift store. No keyboard or mouse, but the local dealer said I could use a standard USB mouse and keyboard with it-that didn't work too well.

Long story short: Can't get past the 'Welcome to Mac OS' Name & Password sign-in.
I did have the desktop coming up just fine before I started fiddling with some Control Panel and browser settings.
I went to the Apple dealer and bought a used mouse and keyboard today.
Did the Control Option+pr (and RAM removal/install) reset, but I am still getting the prompt for a username and password. I hear the modem dialing to parts unknown before the prompt comes up.
I do not have any CD/DVD software from Apple or otherwise for this G3.
So...is there any other way to reset the machine with the OS disks and without nuking the hard drive. I'd like to be able to get back to the desktop. Thanks for your responses!

iMac G3 Indigo 450Mhz 128MB OS 9, Mac OS 9.0.x, Like to rejuvenate thrift store PCs.

Posted on May 23, 2007 6:30 PM

Reply
9 replies

May 23, 2007 6:58 PM in response to Brockster

You'll need an OS9 System disk to make the machine fully functional - available here - apple rescue - link. I'd recommend OS9.2.1. Don't try any flavor of OSX until you know for sure that your machine's firmware version is at 4.1.9, and you'll need to be booted from the hard drive in OS9 to make any firmware changes.

Have you tried to boot with extensions off (Shift key held down on boot)? Sometimes you can remove preferences to bypass passwords in that mode.

'Best get an OS disk at any rate.

David

May 23, 2007 8:23 PM in response to Brockster


I did have the desktop coming up just fine before I started fiddling with some Control Panel and browser settings.


What did you fiddle with & how?
Long story short: Can't get past the 'Welcome to Mac OS' Name & Password sign-in.

This step will vary depending on what version of Mac OS you have. First, I'll describe the what to do for Mac OS X, that is 10.x.

Seems like this mac is set up to require a userid & password to logon. I assume it is running a version of Mac OS X.

Did your computer say what versin of Mac OS it is running?

This page tell you how to get the mac to ask for a new admin & password:


I followed JoseAranda steps and it worked. Walked me through the setup and I created a new account.

restart your computer, hold down Command-S. When you get the prompt, type in the following:

/sbin/fsck -y [Enter]
/sbin/mount -uaw [Enter]
rm /var/db/.applesetupdone [Enter]
reboot [Enter]

Posted by: new2mac at September 23, 2006 10:43 AM
<a href"http://www.askdavetaylor.com/how do_i_reset_my_mac_os_x_admin_rootpassword.html"
Here is the link from which I copied the post.


Here is another solution...
This page will tell you how to get into single user mode.
http://www.securemac.com/macosxsingleuser.php

Basically, you hold down the command-s key when powering on. The command key has a little apple symbol on the lower left. It is between the alt/option key and the space bar. On a PC keyboard, it will be the windows key, I think.

You will need to change the password on some account. ( Do you know Unix. You are in a Unix single user console. ) To find out the users on the system type:
ls /Users

Pick one of the users and type passwd a-user-name and enter the new user password. You need six characters. One of these account will be the administrator.

The root account isn't enabled by default. I am not sure if changing the password on root will enable it.

.....

If you have a machine with Mac OS 9 or earlier, hold down the shift key when powering on. This should get you started. Don't know how to disable password stuff. Do you see the words FoolProof around?


Robert

May 23, 2007 8:41 PM in response to Brockster

I accidentally posted this message twice.


I did have the desktop coming up just fine before I started fiddling with some Control Panel and browser settings.

What did you fiddle with & how?

Oh, you mean you turned on ask for Userid & password!

Long story short: Can't get past the 'Welcome to Mac OS' Name & Password sign-in.
Did your computer say what version of Mac OS it is running?


This step will vary depending on what version of Mac OS you have. First, I'll describe the what to do for Mac OS X, that is 10.x.

Seems like this mac is set up to require a userid & password to logon. I assume it is running a version of Mac OS X.

This page tell you how to get the mac to ask for a new admin & password:


I followed JoseAranda steps and it worked. Walked me through the setup and I created a new account.

restart your computer, hold down Command-S. When you get the prompt, type in the following:

/sbin/fsck -y [Enter]
/sbin/mount -uaw [Enter]
rm /var/db/.applesetupdone [Enter]
reboot [Enter]

Posted by: new2mac at September 23, 2006 10:43 AM
<a href"http://www.askdavetaylor.com/how do_i_reset_my_mac_os_x_admin_rootpassword.html"
Here is the link from which I copied the post.


Here is another solution...
This page will tell you how to get into single user mode.
http://www.securemac.com/macosxsingleuser.php

Basically, you hold down the command-s key when powering on. The command key has a little apple symbol on the lower left. It is between the alt/option key and the space bar. On a PC keyboard, it will be the windows key, I think.

You will need to change the password on some account. ( Do you know Unix. You are in a Unix single user console. ) To find out the users on the system type:
ls /Users

Pick one of the users and type passwd a-user-name and enter the new user password. You need six characters. One of these account will be the administrator.

The root account isn't enabled by default. I am not sure if changing the password on root will enable it.

.....

If you have a machine with Mac OS 9 or earlier, hold down the shift key when powering on. This should get you started. Don't know how to disable password stuff. Do you see the words FoolProof around?


Robert

May 23, 2007 8:36 PM in response to David Jenson

Have you tried to boot with extensions off (Shift key
held down on boot)? Sometimes you can remove
preferences to bypass passwords in that mode.
'Best get an OS disk at any rate.


Awesome hint. I was able to get on and create a user account for myself - but it is limited in what I can do. But I'm in for he time being. Thanks!!

Are the gray OS CDs that are sold on eBay okay - or do I need to get the expensive white ones with the "9" on them?
What software is on the CDs?
This Mac has MS Word, Adobe Photoshop 4.0.1, iTunes, iMovie, Internet Explorer, Apple DVD player, Real Player, AOL, Picture Viewer, & StuffIt Expander. Photoshop looks like a legit registration, but are the others included on the restore OS CDs?

I've burned a CD with the firmware upgrade already with K3B (open source linux CD burner front-end) - but the Mac doesn't want to run it.

Thanks Again!

Brock

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Model M5521, Indigo 450Mhz iMac

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