block device /dev/sda4 is not a valid root device

[davidbrooke]

Upon rebooting for the first time after my 1st install, I recieved this error "block device /dev/sda4 is not a valid root device". Please see the following photo for more info:
 
http://imgur.com/J6msPnJ
 
Here is my fdisk -l and fstab info:
 
http://imgur.com/G4gUOd5
 
I can enter /dev/sda3 and continue the bootup process. I can't find any info that makes sense on how to correct this.
Thanks

[davidbrooke]

Additional info:

On 1st bootup I received the error and saw that the fstab entry was incorrect. I made the adjustment, changed /dev/sda4 to /dev/sda3 but since received the same error.

h3nnn4n of irc suggested that I re-run boot-update and that fixed the issue.

Thanks