Invalid content in Journal
One of my macbook pro’s drive was not mounted. Using Disk Utility, i ran Repair Disk, which gave me error “Invalid content in Journal”.
From discussions.apple.com and from macfixit —
#diskutil list
This will list the volumes on the drive, and give you their identifiers. Locate the drive’s volume name, and get the identifier for that drive, and then run the following command to remove the journal on the device:
#/System/Library/Filesystems/hfs.fs/hfs.util -N /dev/IDENTIFIER
NOTE: The “IDENTIFIER” should be something like “disk0s3”
I again ran Repair Disk from Disk Utility and the drive was mounted… voila.. saved me a day…