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Changing mac preferences in single user mode

I accidentally changed the start up preference to other (which was my internet connection) and now the g5 boots up to a blank blue screen. Also empty accounts.

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Start your computer by holding down the option key before pressing the start button. This should give you an option to choose which startup disc to use when starting the computer. Once it's restarted, go to the System Preferences and choose the specific startup disc that you want to use.

Posted on Feb 21, 2008

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Can't log in with password


You can boot from the install CD/DVD that came with the Mac, there's a reset password tool there. Or if it's a new Mac, from the Recovery partition via Command + R when you restart.

You can also reset a forgotten Mac password without a Mac OS X installer CD/DVD or recovery partiton. This is basically the be-all-end-all approach if nothing else works, because it's guaranteed to get you back into a Mac when the other options are not available, and it works for all versions of OS X. The steps may seem a little intimidating but it's easy if you follow them exactly:

Stage 1) Boot into Single User Mode and remove a setup file
  • Restart the Mac holding down the Command+S keys, this will take you into Single User Mode and it's Terminal interface
  • You'll need to check the filesystem first, type the following command exactly, followed by the enter key:
  • fsck -fy
  • Next, you must mount the root drive as writeable so that changes will save, type the following command exactly, followed by the enter key:
  • mount -uw /
  • Now, type the following command exactly, followed by the enter key:
  • rm /var/db/.applesetupdone
  • After removing the applesetupdone file, you need to reboot, type 'reboot' and hit enter.
Stage 2) Create a New User Account upon System Boot
The hard part is now over, no more command line. In this step we just create a new user account as if you just got a new Mac:
  • Upon reboot, you will be presented with the traditional "Welcome Wizard" startup screen just like when you first get a Mac
  • Follow the welcome wizard and create a new user account - making the account name different from the account whose password you want to recover, make this new user account is an Administrator
  • Continue on and boot into Mac OS X with this newly created user account
Stage 3) Reset the Forgot Password via System Preferences
Now you just need to reset the forgotten user account password using the Accounts control panel:
  • Once you are booted into Mac OS X, click on the Apple logo and then navigate down to "System Preferences"
  • Click on the "Accounts" icon in System Preferences
  • Click on the Lock icon in the lower left corner of the "Accounts" preference window and enter the newly created user credentials, this enables you to change other user accounts and reset other users passwords
  • On the left side user panel, select the user account containing the forgotten password
  • With the user of the forgotten password account selected, click on the "Reset Password" button
  • Enter a new password for that user, be sure to include a meaningful hint so you don't forget it again!
  • Close System Preferences and reboot the Mac
  • You can now login to the previously inaccessible user account using the newly reset password! All user files and settings are maintained as before the password was forgotten
Now you can delete the temporary account you created to reset the users password. This is probably wise for security purposes.

Thanks, John

Mar 02, 2015 | Mac Desktops

1 Answer

How do i get out of dns mode on my imac home computer?


Mac OS X v10.5 or later:
  1. From the Apple menu, choose System Preferences.
  2. From the View menu, choose Network.
  3. Click the interface you use to connect to the Internet, such as AirPort or Built-in Ethernet.
  4. If you use Built-in Ethernet: Type your DNS address(es) in the DNS Server field. If you have more than one, separate them with a comma.
    If you use AirPort, click Advanced, then click the DNS tab. For each server, click the "+" button under DNS Servers and enter the address provided by your ISP or network admin. Click OK when done.
  5. Click Apply.
Mac OS X v10.4 or earlier:
  1. From the Apple menu, choose System Preferences.
  2. From the View menu, choose Network.
  3. From the Show menu, choose the interface you use to connect to the Internet.
  4. Click the TCP/IP tab.
  5. Type your DNS address in the Domain Name Servers field. If you have more than one, press Return at the end of each to put the next address on a new line.
  6. Click Apply Now.

Changing networks
You may experience a delay with the first connection after changing networks on a portable Mac. For example, you might use a MacBook at home with Wi-Fi, then take it to work or school and use an Ethernet connection. By default, Mac OS X uses one set of Internet preferences (known as a "location") named Automatic that will search your computer's modem, Ethernet, and AirPort interfaces until it finds the one that is connected to the Internet. You may experience a delay while your computer determines which network it is on. This can be easily differentiated from a DNS issue by creating a location that only contains one network interface. For more information, see Using network locations in Mac OS X.
If issues continue after trying the above steps, consider removing any manually-entered DNS addresses from the Network preferences pane. Select the address, then click the minus ("-") button. Note that dimmed addresses cannot be removed.

Jan 17, 2014 | Apple 24" iMac Desktop

2 Answers

Adobe has stopped opening documents on my Imac G5. Solution please?


Hi David.Forget adobe and use Preview - it's installed in your imac.Single click a document. then go to File - Get Info in the menu bar.Near the bottom of the window that opens you will see this5_9_2012_9_29_04_pm.pngChange the bit where it says Open With, to Previes and then click the button underneath that says Change All.
This will change all Adobe PDF files and other PDF files so that they open with preview - that's how it works on all the macs here, no Adobe Reader at all.

May 08, 2012 | Apple iMac G5 Desktop

1 Answer

My I Mac says I have an application already for dial up/ Trying to get new connection


HiI'm guessing you have the network preferences set to use PPP for you internet connection.Turn PPP off and delete it from the list.. Set the preference to TCP/IP and try again.

Jan 24, 2011 | Apple iMac G5 Desktop

1 Answer

Isight intermittent. G5 Imac 17" The Isight cam I have now dubbed 10sec cam turns off and has to be restarted.


I understand from your problem statement that the internal iSight camera in your G5 iMac turns itself off around 10 seconds after you turn it on.
Create a new temporary user in System Preferences / Accounts. Log out and then log in as this user. Enable the camera. Does it still turn off in 10 seconds? If not, something running in your other user account (a startup program or system preference) is interfering with the operation of your camera.
If you have a spare external drive, install a fresh version of the Mac OS on that drive, then boot from that drive. Does the camera still turn off in 10 seconds? If not, you should run an OS installation with "archive and install" on your internal drive. If it does, you have a hardware problem that requires a Mac tech. If this is indeed a G5 iMac, the repair will likely not be cost-effective.

Aug 26, 2009 | Apple Mac Desktops

1 Answer

No sound from internal speakers on 1.9 GHz PowerPC G5


Go to System Preferences, then Sound, then Output. Select "Internal Speakers/Built-in Output".

Aug 10, 2009 | Apple Power Mac G5 Desktop

1 Answer

Why my MAC G5 turn off when the sleep mode is on


You may have your energy settings set to turn off the Mac after a specific time of inactivity. The power on / off option is in the Schedule button in the Energy Saver pane in system preferences under the Apple menu.

Jun 06, 2009 | Apple iMac G5 Desktop

1 Answer

Why "print and fax" icon disappearing from my mac "system preferences" window ? Right now instead of showing "system preferences icon!"(name didn't change! only the icon). So i can't add new printer, even...


Hello, it seems like your system has a corrupted preference file, or something has been deleted. For best results, I would recommend to do an update of your system. If this doesn't work, you can try to repair the systems permissions in Applications --> utilities --> disk utility, and hit "SOS" and select your drive then click on "repair permissions". Reboot the computer.
If this doesnt help, I would recommend to reinstall the system using the Leopard DVD

May 28, 2009 | Apple Power Mac G5 Desktop

1 Answer

Yahoo messenger


hi dear

It’s heeeeeeeere!
We know our Mac users have been waiting patiently for a new version of Yahoo! Messenger for Mac. The wait is finally over. Please give a warm welcome to the new Yahoo! Messenger for Mac 3.0 Beta 2. Download it now.
This new version includes:
Tabbed IM windows: When you have two or more conversations going on, they appear as separate tabs in a single window. Less clutter for your desktop! Plus, you can drag a tab out and make it into its own window (or drag it back in to consolidate). Tabbed conversations are a preference, so if you prefer having one window per IM conversation, you still can.
Chat rooms: Yup, the same Yahoo! chat rooms that Windows users have been using are now open to Mac users.
Message archiving: All of your IM and chat room conversations can now be archived on your computer.
Improved stability for webcam and file transfer: There were issues with these in the past version so the team did a lot of bug fixes and under-the-hood work to improve them.
More emoticons: We added in the additional emoticons that are in our other versions of Messenger, so Mac users now have them all!
Download Yahoo! Messenger for Mac 3.0 Beta 2


oke

Feb 23, 2008 | Apple iMac G5 Desktop

1 Answer

Can't reinstall


uninstall the antivirus and unused softwares and then try

Feb 20, 2008 | Apple Power Mac G5 Desktop

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