It seems that you may have encountered a problem that is described and solved here
http://www.linuxmint.com/wiki/index.php ... annot_boot
Not quite sure as you get error 2
Check out the wiki and if that does not help you boot the live CD and use it to check out a few things. I don't think you can do it from Windows if you have it because Windows can't read ext3 (I guess that's what you've used)
Go to Places > Computer and open the partition where you have Mint
Got to /etc and open the file fstab and post the content here (Use ctrl+A then ctrl+C the same as in Windows
)Open a terminal (from the menu) and run blkid
You should get a list of partitions and their UUID - however I'm not sure if running from the live CD makes a difference
Post the list as well (mark with the mouse and right click to copy)
You can see for yourself if fstab is correct - what happens sometimes - as described in the wiki - is that the UUID is changed between the install when it's written to fstab and the first reboot