Two days ago, I copied a lot of videos & photos into my macbook without checking the available hard drive left. I also had a problem with the trackpad that keeps forgetting my settings, so I searched for solutions online. I read somewhere that said that I could try to change permissions for users in the system folder (right click on Home > get info > permissions) from Read only (for everybody) to Read & Write.
After i clicked that, it ran for a while and just as I was about to turn off the mac, there were a series of error popping up one after the other. I didn't pay much attention to it so I pressed 'close' on most of the warning pop-ups. But because there were a ton of them non-stop, I force shut down the mac. Then I went to bed (Argh bad choice)
Anyway, the next morning as i turned on the machine again, it got stuck in the apple logo with spinning wheel page, and I've tried several times even letting it run for the whole day.
Safe Boot did not work, as I was unable to enter safe Boot mode. The progress bar would appear for a while and then it would vanish and again i'm left with the logo and spinning wheel.
Nor does recovery boot, which gives me the option of choosing only the hard disk (no recovery hard disk?)
I've tried doing fcsk in terminal. After which it failed to shut down/restart after I typed in 'exit'. It got stuck at "AirPort: Link Down on en1"
I've also tried this: http://macs.about.com/od/MacTroubleshootingTips/qt/Troubleshooting-Mac-Startup-P roblems-Stuck-At-The-Blue-Screen.htm same result.
I also saw something along the line of "Audit space low" which I assume is caused by my stupidity of letting the harddisk get too full.
I had my iphone share the internet wifi and i can hear it 'ding' (signalling that someone/thing has connected to the wifi) when my mac turns on, even when it couldn't get through the apple logo. I guess this means the airport works?
Then what..? Why won't it continue start up? Why can't I go into safe mode? Or recovery mode..?
I've also tried resetting PRAM (Command Option P R) three times in a row, to no avail.