Mac Book Pro not booting up

[troye]

I finally updated to Mavericks and I have a Mac Book Pro from around 2012 and when I updated it will not load up all the way now, once I turn it on. I seems like it's loading the operating system but then crashes..

Any ideas?

 

[Bruno09]

You might :

- boot up from the Recovery partition (Cmd + r on chime), use Disk Utility to verify/repair Macintosh HD, and repair the permissions.

- boot in safe mode (Shift on chime)
http://support.apple.com/kb/HT1564

Let us know what happens.

 

[troye]

I tried a repair on the HD but it said it could not be repaired.

When I verified the HD, it said it needed to be repaired.

It wont let me boot to safe mode because it is tried to load Mavericks.