My comp froze so i held the powerbutton for 5 seconds to force shutdown. I rebooted and then at the boot screen it just kept on spinning and spinning finally restart. I used the boot parameter -v it had a kernel panic, it said could not read 512 bytes for the journal header. I booted my install disk, went to disk utility then tried to repair it then it failed and said invaled content in journal.

Also, can't event boot into safe mode/ single user mode.

I tried to use the install disk went into the terminal i did:
diskutil disableJournal disk0s2
to disable journal because the problem has something to do with journaling
but it says An error occured journaling th filesystem: Could not mount disk (-9954)

I then tried diskutil force disable journal disk0s2
worked, then i reinabled it.
Rebooted and then it booted back up like nothing happened at all!