Can't boot-up, don't have permission to my Hard-Drive!

[fredltd]

some how i managed to completely ruin my sharing permissions on my computer.

computer number 1 (my computer) cant access its hard drive - it had a little minus sign on the folder - when i restarted it i only get to a blue screen.

i tried this...

https://forums.macrumors.com/archive/index.php/t-375901.html

and now i get a grey screen, i've tried putting the OS X disc in and it doesnt pick it up.

the weird thing is i can access my hard drive through my other computer (computer number 2) when comp 1 is sitting on the grey screen.

is there a way i can change some text file on the hard drive to change all the sharing permissions or something???

 

[windels]

are you sure it has something to do with permisions?

If so , I can't help you. but once I also hung at the blue screen. the solution was to take the leopard disk, boot it and use the EHBO feature from the disc utility, maybe you coud try that?

 

[Cavas]

I think this is similar to the problem discussed in the following address. Check the solution proposed by ' shamino ' .

https://forums.macrumors.com/threads/416180/

Good luck!

 

[fredltd]

thats the problem, i just tried that and now i'm left with a grey screen and a mouse pointer.

good idea though!

 

[SaNdMaX]

Can you run the hardware diagnostic test when it boots by pressing and holding the D key?

If you could boot from the Install DVD, you have to go into Disk Utility and try doing a Repair Disk Permissions.

 

[Cavas]

fredltd, what do you mean by saying that you have access to your HD through computer #2 ? Is it perhaps possible to use comp. # 2 to change the permissions on comp.#1 HD?