3066 Views 6 Replies Latest reply: Feb 10, 2011 9:43 AM by Király
Hi Lewis, and a warm welcome to the forums!
Reset OS X Password Without an OS X CD...
It'll boot like a newly setup Mac, but all your stuff should still be there once filling out the stuff, & you'll have a new Admin account.
If the method outlined by BDAqua fails it is possible somebody may have set a firmware password on the computer. Since kids are known to be ingenious at getting around simple things like administrator passwords a firmware password is quite possible in computers coming from a school. It is also very difficult to circumvent. There were methods on older Macs but I believe on some newer models the only recourse was to take it into an Apple Store for resetting.G4 Quicksilver 2x1GHz 2x120GB HDs 1.5GB RAM 10.4.11/9.2.2, iTunes 7.5, QT7, QTP2.5.1
Hmmm, they must've done something special to the Rights on that file/folder I think!?
Do you have another Mac with Firewire around, & does this one have Firewire & also boot into FireWire target disk mode...
Do you have any OSX Install Disc this MB will boot off of?
I lost my admin user (Mac OS X 10.4 and earlier) ...
Most likely, you missed a step. The disk is mounted as read only. You need to change to read/write.
The command you need is listed in a message you will see on the screen. The author of the tip lists ...
mount -uw /
I like my procedures better. I include how to change the password & how to create a new administrator account.
You need to get into single use mode for steps one and two that are listed below.
This page will tell you how to get into single user mode.
Basically, you hold down the command-s key then powering on your machine. 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.
1) You can change the password on an account. ( Do you know Unix. You are in a Unix single user console. ) The setup commands you need should be listed on the screen. For Mac OS 10.4.11, the commands are:
# Type the follow two instructions to access the startup disk in read/write:
/sbin/mount -uw /
# Start up some utility processes that are needed.
# You will probably need to press the return key once the system stops typing.
# To find out the users on the system type, use the list command. The l is a lower case L:
# One of these accounts will be the administrator.
# Pick one of the users which I'll call a-user-name and type it in this command:
# and enter the new user password. You need six characters.
# You will need to enter your password twice. Your typing will not show up on the screen just
# press enter when you complete the typing.
# For cryptic information on these commands try:
The root account isn't enabled by default. I am not sure if changing the password on root will enable it.
2) Get the Mac to set up an additional administrative account. You can then change the password on your old account.
Start with your computer power off. Hold down command-s. Power on your computer.
Type in the following:
The first two commands will depend on your release of Mac OS X. Look at what is typed out in the console to determine the exact format.
# Type the follow two instructions to access the startup disk in read/write. Press return after each command.
/sbin/mount -uw /
#List all files. The l is a lower case L.
#The move command acts as a rename command in this format.
mv -i .applesetupdone .applesetupdone.old
Once you've done that the computer reboots and it's like the first time you used the machine. Your old accounts are all safe. From there you just change all other account passwords in the account preferences!!
Limnos adds detailed explainations:
The above the idea came from a post by JoseAranda at September 9, 2006 3:48 AM
You will need to scroll down to see this post. Search for applesetupdone
Once you have a new administrative account, you can change the password of your old administrative account
blue apple > System Preferences > Accounts
RobertiMac G3 600, Mac OS X (10.4.11)
You really should reformat and reinstall everything. When acquiring a used Mac, there's no way to know what kinds of hacks, security holes, or other junk may have been left on it by any previous owners. Who knows if the previous owner installed some sort of keylogger or other activity sniffer to monitor what the students were doing.
Reformat the hard drive using the install discs that they should have given you when you bought it. Then reinstall everything from scratch. That's the only way to guarantee that you have a fully pristine and secure system.iMac (3.06GHz Intel, OS X 10.6.6), eMac (1.25GHz PowerPC G4, OS X 10.5.8)