I have inherited a Power Mac G5 from a storage closet at the school where I teach. However, the machine has an admin password on it that no one knows and there are no recovery disks for it. How would I go about resetting the password?
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Power Mac G5
- Thread starter xsmi123
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Take a look through this: http://www.macyourself.com/2009/08/03/how-to-reset-your-mac-os-x-password-without-an-installer-disc/
Seconded. Thanks @eyoungren - if I'd known of this trick, it would've saved me considerable grief over the years, including a recent situation with a faulty optical drive and an inability to boot via USB. 
Well…I didn't know about it myself until an hour and a half ago. I was going to post some stuff about downloading an installer and then booting from it to reset the password when I just decided to do a Google search. That's the first link that came up.Seconded. Thanks @eyoungren - if I'd known of this trick, it would've saved me considerable grief over the years, including a recent situation with a faulty optical drive and an inability to boot via USB.
So, I cannot claim credit for any of the knowledge it shares.
True, You never know.
In that case, you could download a Tiger or leopard image off of macintoshgarden and install a fresh copy yourself.
You can run OS X 10.5.8 max. There is a minimum OS you can install but it's model specific so unless we know what your model is we can't tell you that. Most people run Tiger (10.4) or Leopard (10.5).
Tiger and Leopard are towards the bottom of this page…https://macintoshgarden.org/apps/mac-osx-mac-os-10-ppc