Hey I was editing my com.apple.boot.plist and apparantly I made a bad change in it. Now whenever I boot up it goes to the grey screen and says "please reboot". Sadly when I try to start in single user mode it wont get to where I can input
sudo nano /Library/Preferences/SystemConfiguration/com.apple.boot.plist

I booted from the CD but the "sudo", "nano" commands returns "command not found", why the terminal wont reconigze these commands, what text editor could I use?

thank you

if you are multibooting, you can download MacDrive 7 trial for Windows and edit it through there
http://www.mediafour.com/products/macdrive/freetrial/

I installed that but I have MAC on a partition, not a drive, nothing shows up after installation.
thank you

Ok try this I am not sure if it will work:

boot darwin with -s

in console type: sudo nano /Library/Preferences/SystemConfiguration/com.apple.Boot.plist

edit the plist

Ctrl-O to save

type: logout

-s throws a panic as well:
nfs_boot_init failed

if that command (nano /Library/Preferences/SystemConfiguration/com.apple.Boot.plist) worked on the install cd I could fix it, why it doesnt?

I've been on this issue for weeks an no one is able to tell me why the "nano" command returns "command not found" when I launch the Terminal from the installation cd, come'on I know this is no match for your wisdom.

Ok from the install cd try replacing nano with vim or Textedit

When you start your computer, keep hitting F8 to get to the Darwin boot screen, select your OS X partition but dont hit enter, type mach_kernel and then hit enter. It should load OS X even if com.apple.Boot.plist is incorrect.

that worked for me!! i was able to create user info, ect. and finally load up the desktop interface. BUT i got greedy and attempted to connect to the internet. I was unable to, ethernet didnt work, wireless card didnt' work. so i rebooted, froze on the black screen w/ white text screen so i had to hot shutdown and reload, had to do the mach_kernel msg like you stated, it started to boot up again, but then it just froze at the loading of endless text screen, don't know how/why either.

now i'm re-installing again for 12th time or so ;-)