Nothing but a black screen

[dombe]

Hi, hope you are well.

I have been having problems recently updating my G5 running tiger.

Been through all the usual disk repair etc.

Anyway, been busy moving house and the g5 has just been sat in the corner of my parents house. Anyway went to turn it on and all i get now is the apple logo for 1 sec as if it was starting normally then i get a black screen with the words localhost:/ root#

any ideas as i am about to through the thing out the window.

Thanks in advance.

Dominic

 

[yeroen]

For some reason, it's booting into single user mode.

If you type:

nvram -p boot-args

what do you see? If you see boot-args="-s", then type:

nvram boot-args=""

and then reboot the machine by typing:

reboot

If boot-args="" and you're still rebooting into single-user mode each time, your disk could be corrupted. If this is the case, type

fsck -f

at the prompt, answering yes to the prompts. After this is done, type reboot again.

For more info, you can read this here:
http://www.askdavetaylor.com/how_do_i_get_past_single_user_mode_in_mac_os_x.html