MBP stops working after Mavericks update - please help!

[yani2k8]

Hello

So I updated to Mavericks a couple of days ago and everything seemed to be working fine, until last night when my computer ran out of battery and turned off.

I plugged in the charger and tried to boot it up but I keep getting the Apple screen with a grey loading bar just underneath the logo. Takes it about 5-10 mins every time and only reaches about 9/10 of the way when the mac shuts down and begins the entire process again.

Thankfully I also have Windows 7 installed as an alternative operating system so I can still access all my files but I can't stay with it too long, I already miss OSX.

Any suggestions would be greatly appreciated!

 

[KoolAid-Drink]

Seems like the installation of Mavericks somehow became damaged and/or unable to boot. What you should do is press COMMAND and V when starting your computer, and let us know what line the verbose text input stops/stalls on.

Hello

So I updated to Mavericks a couple of days ago and everything seemed to be working fine, until last night when my computer ran out of battery and turned off.

I plugged in the charger and tried to boot it up but I keep getting the Apple screen with a grey loading bar just underneath the logo. Takes it about 5-10 mins every time and only reaches about 9/10 of the way when the mac shuts down and begins the entire process again.

Thankfully I also have Windows 7 installed as an alternative operating system so I can still access all my files but I can't stay with it too long, I already miss OSX.

Any suggestions would be greatly appreciated!

 

[yani2k8]

Seems like the installation of Mavericks somehow became damaged and/or unable to boot. What you should do is press COMMAND and V when starting your computer, and let us know what line the verbose text input stops/stalls on.

Thanks for your response, koolaid

Here is a screenshot of the outcome:

Also, I found a few similar threads (although nothing quite the same), which prompted me to run OSX in recovery mode and try a disk repair.

This is the error I'm getting:

 

[KoolAid-Drink]

Yikes Did you have a backup?

There's a bunch of people reporting similar issues here:

https://discussions.apple.com/thread/5477375?start=0&tstart=0