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I forgot the master password on my mac os 10.4 and was told I could reset it with the cd  but my mac doesnt want to recognise the command and just continues booting normally. I

Posted on 2007-11-18
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2,364 Views
Last Modified: 2009-04-13
I forgot my master password, I was told I could reset it by using the cd and hold the "C" at boot up, i tried it but the mac somehow doesnt want to recognise the promt, and it boots up normally. I did some research and saw something was locking the mac from recognising prompts like "C" or "S" tec. I do not know what to disable to get it working. can anyone help PLEASE!!
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Question by:rmoore06
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13 Comments
 
LVL 53

Expert Comment

by:strung
ID: 20308501
Try rebooting holding down the option key. This should force the boot selector to appear and you can choose to boot from the CD.
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Author Comment

by:rmoore06
ID: 20308565
I held down the "c" key and it boots up in to the hardrive instead of the cd.  The person who was the admin has locked this thing down tight.  I do not want to format and reinstall if I can help it.  Any help will be appreciated
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LVL 16

Expert Comment

by:DrNikon224
ID: 20308655
Boot up, and hold down the option key. You will either see the boot selector, or a password prompt. If you're not getting the CD boot by holding down C, then you most likely have a firmware password set. Holding down the option key on boot will give you the chance to enter the firmware password to get to the boot selector.

If you don't have the firmware password, you'll need to change the amount of RAM in the system to clear the firmware setting.
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LVL 19

Expert Comment

by:pheidius
ID: 20308660
It is possible that there has been an open firmware password set.
http://docs.info.apple.com/article.html?artnum=106482
This would prevent the computer from  being booted up in any other way then the preset path. Just contact your old "admin" and ask him/her for the password.
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LVL 19

Expert Comment

by:pheidius
ID: 20308674
hehe , DrNikon224 I wasn't going to tell him how to clear it in case this was a jacking attempt. But since I am typing he might also check and make sure he is trying to boot from the right DVD. It could be a case of an intell boot cd when it should be a ppc boot cd or vice versa.
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Author Comment

by:rmoore06
ID: 20308711
There is no other way without changing the ram.  Do I need to add or subtract and will this take change the password by doing this procedure
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Author Comment

by:rmoore06
ID: 20308773
This mac is at a school and I found a Mac os X os cd.  It might be the wrong one I am not sure.  I am a PC guy learning Mac.  This is the main mac in a mac lab.  The teacher does not have rights enough to remote into the students macs for class.  I guess if you want to call me a hacker in this case all I want to do is create all new accounts so they can use their lab macs.  If there is an easier way to reset the firmware password I sure would be in debt to you.
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LVL 19

Expert Comment

by:pheidius
ID: 20308780
Well, since the cat is out, just rebooting it with a differing amount plus or minus will take care of it. It does not chnge the password just wipes the slate to a no open firmware password  state so all key commands and boot options will work again.
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LVL 19

Expert Comment

by:pheidius
ID: 20308831
Well, I know how that is as I am a teacher who has had to "hack" certain things in order to avoid waiting months for a tech to creep in and leave a job half done for another few months.  If this is a school environment, then it is much more likely that this is not an open firmware situation and that you really are trying to use the wrong disk. It would be just too much work for the average school tech or admin to bother with setting an open firmware password. We need to know the exact model of Mac now. Click on the Apple menu and then click on about this Mac and tell us everything it says. Basically, we need to now if this is a PPC based Mac or an Intel based one. We need to know the model E.G. iMac PowerMac tower, Mac mini, eMachine etc. etc.  and which OS version you are running. Then we can compare that info to the part number on your boot media and see if you are using the correct disk.
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LVL 16

Expert Comment

by:DrNikon224
ID: 20308957
pheidius is right - I should have checked the circumstances surrounding the situation. I had assumed this was a machine purchased second hand, and the new owner needed to clear previous admin settings. That this is in fact a school lab situation, dealing with machines officially administered by a school system administrator, crosses the lines of assistance we can offer. Helping you circumvent security and configurations put in place by your system administrator is a clear example of hacking.

Have you approached the sys admin, explained what you want, and asked him/her to reconfigure the lab machines to allow the students to use them remotely?
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Author Comment

by:rmoore06
ID: 20309314
The administrator who had the main mac in the lab has left the school and took all information with him.  I am the administrator of the Mircosoft side of their network.  They have asked me to change the passwords on the main mac so they can use it.  I know you don't know me from adam but if you won't give me the info can you at least direct me to where I can get this information.  I have searched and have found nothing so far.
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LVL 19

Expert Comment

by:pheidius
ID: 20309403
Ya, we gotta quit helping.  The fact is we have already helped 2 much. All the answers he needs are already given in  our combined posts as it is.
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Accepted Solution

by:
rmoore06 earned 0 total points
ID: 23770570
I wish there was no such things as MAC
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