Troubleshooting b0 error and changing Display Resolution on OS X 10.4.6

So you stuck on ‘b0 error’ huh? I guess every user running OS X under VMWare gets this error at least once.

If somehow boot loader does not find any partition active it throws ‘b0 error’ on bootup screen. To correct this error, insert OS X install DVD in drive or Mount the installation ISO on virtual Drive and wait till it times out at the installation prompt.
Doing this OS X will boot from installed OS X from hard drive.
Now once you logged in, start the terminal application and switch to root user by following command.
Bughira-OSX:~ user1$ sudo –
password: <enter your root passwd>

Bughira-OSX:~ root# ls /dev/rdisk[0-9]

Above command will list out all your hard drives; ususally rdisk0 is your installed drive.

Bughira-OSX:~ root#fdisk -e /dev/rdisk0 (the disk number may be different on your installation, eg. rdisk1)
Now you should get fdisk shell prompt; type ‘print’ and press Return to list all the partions on the drive.
Next type ‘flag 1’ to set the partition 1 as bootable.
Type ‘quit’ and say ‘y’ to save settings.

Once done, reboot the computer. Your b0 error must be gone.

Credit: osx86 folks.

For more OS X installation or troubleshooting issues, contact osx86 team.
How to change the OS X resolution?

Resolution can be changed in 2 ways.
[+] At boot prompt, press F8 and
[+] Type “Graphics Mode”=”1280x800x32”
You can replace the resolution, as per your need.

[+] Start OS X and log in.
[+] Open Terminal application
[+] vi /Library/Preferences/SystemConfiguration/
[+] Add following 2 lines after the <string>Yes</string> line.

<key>Graphics Mode</key>

You can replace the resolution, as per your need.

Now Reboot the system and Enjoy your new Resolution.


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