Currently Being ModeratedJan 12, 2013 1:55 PM (in response to mertn)
After the C boot, click next past language, the click utililities, reset password. Make sure to set new keychain.
Hope this helps.
Currently Being ModeratedJan 14, 2013 7:12 AM (in response to sanjampet)
Thanks for the response, but no, that doesn't help. "the C boot" doesn't work. There's no difference for me between booting with the C key held down or not doing that. It always just boots up as normal.
Currently Being ModeratedJan 17, 2013 9:34 AM (in response to mertn)
I'm having the same trouble. Did you solve yours?
Currently Being ModeratedJan 17, 2013 10:24 AM (in response to mertn)
Maybe some help here:
Hope this helps.
Currently Being ModeratedJan 17, 2013 7:30 PM (in response to sanjampet)
Arg! That included some new instructions that sounded so promising; but no dice. Specifically it gave me these other 2 options: "Or, put it in the computer and click the Install or Restore icon you see in the disc's main window (after which the computer will start from the disc without you needing to hold C). Or, you can use Startup Manager or the Startup Disk preference pane to select the Install disc."
But neither works. First of all there's no "Install or Restore" icon. Just picking "install" takes me to a workflow which, surprise, requires the password. And following the instructions for the "startup manager" entails rebooting with the option key held down, which has no effect. It's exactly the same as restarting without the option key held down.
Currently Being ModeratedJan 17, 2013 11:50 PM (in response to mertn)
Just a thought. Are you using a wireless keyboard with your imac. If you are see if you can borrow a USB keyboard and plug it in and then try that holding down C when you start or restart your computer.
Currently Being ModeratedJan 18, 2013 2:46 AM (in response to mertn)
Good thinking, Alan.
mertn - if it is a wireless keyboard, don't hold down the keys until the startup tone sounds (bluetooth is not available until then).
Currently Being ModeratedJan 18, 2013 7:39 AM (in response to noondaywitch)
Thanks, but unfortunately that's not it. The keyboard is plugged directly into the usb port on the back of the imac.
Currently Being ModeratedJan 18, 2013 12:15 PM (in response to mertn)27" i7 iMac SL, Lion, OS X Mountain Lion (10.8.2), G4 450 MP w/Leopard, 9.2.2
Currently Being ModeratedJan 19, 2013 9:33 AM (in response to baltwo)
Thanks for the suggestions. I tried that but it's not helping either. Zapping the PRAM turns out to rely on the same assumption as all the other troubleshooting suggestions I've seen: namely that you can make something special happen at reboot by holding down a combination of keys on the keyboard. But that's not working for me. I'm wondering if it's a hardware problem. Any ideas how to determine if that's the case?
Currently Being ModeratedJan 19, 2013 9:38 AM (in response to mertn)
Try holding down Cmd-S to boot into single user mode, then type the following commands:
- fsck -fy
- mount -uw /
- passwd <shortusername>
Currently Being ModeratedJan 19, 2013 9:50 AM (in response to edex67)
Ok, to confirm you're suggesting that I reboot and during reboot hold down Cmd and "s", right? I tried that but as far as I can tell nothing is different about how it's rebooting (just like every other attempt to change the reboot behavior by holding down various key combinations). At any rate, I went ahead and tried that and then tried entering those commands at a prompt in a terminal window. That command prompts me for the current password, which I don't know. If I knew that I wouldn't need to reset it.
Currently Being ModeratedJan 19, 2013 10:05 AM (in response to mertn)
Yes, hold down Cmd-S. Then it *should* boot into a text only mode, it shouldn't boot like an ordinary machine. It seems that that key combo doesn't work either. Can you use another, Mac compatible keyboard?
Currently Being ModeratedJan 19, 2013 11:33 AM (in response to edex67)
Aha! Swapping the keyboard did help. I can now do the C reboot trick. I tried following the instructions to reset the admin password which didn't quite work as described, but I eventually got it to work. Here's some info on what I learned which may be helpful to others:
The instructions told me to boot with install disk 1 and then choose my hard drive when I got to the 'reset password' step. That didn't work because I couldn't choose my hard drive at that point. The only option was to try to reset the root password on the install disk itself, which wasn't possible.
Eventually I switched to booting with the Snow Leopard install disk instead and that worked. I was able to reset the admin password, but then got prompted to reset the "keychain password", which I couldn't do without knowing the old password. But it didn't seem to matter and I just reset the keychain.
Hooray, I can finally update software and get some long overdue security updates.Thanks to everyone for your help here.