A friend of mine has forgot her password to a newly bought Macbook Pro, Lion.
I've reset the password like described here by booting to single-user mode and deleting
The Mac booted fine and started asking for all the registration details. After everything was entered, it goes back to the beginning, asking to fill the address etc. AGAIN AND AGAIN, endlessly.
After entering it several times I turned it off (by holding down the power key) and now it does not boot at all. Grey screen and endless spinning wheel.
It still boots to single-user mode, and I tried the fsck command, but it says "the volume macintosh hd could not be repaired".
I also tried resetting the NVRAM / PRAM - does not help.
PS. I'm mostly a PC guy, and I know very little about Macs, so please be very precise on what I should do :)