I searched for a similar story and couldn't locate a solution. I apologize ahead of time if there is another, but if someone could direct me there that would be great.
I currently have an HP Pavillion laptop with Ubuntu 12.04 installed (96 gb partition), and wanted to install Linux Mint 14 on another partition (by shrinking Ubuntu's). After checking the Ubuntu partition, I noticed that it could be shrunk down to 68gb, but at that time did not shrink the partition. So I created a Linux Mint Live CD on a USB drive, restarted and booted to the Linux Mint boot screen. I started Linux Mint, and then began the installation process to put Mint 14 on my system. I was weary about manually partitioning my disks, so I chose the option to "Install Mint alongside Ubuntu 12.04", which brought up the partition manager, showing 2 partitions (74.9gb and 34.6gb), with a sliding divider. I opted to leave the slider as is, assuming (which is never a good thing) that my Ubuntu partition would be shrunk to fit the 74.9gb slider. I completed the installation with no issue.
My problem came about when I restarted the computer, expecting it to boot up and display a boot menu with the option to boot EITHER Ubuntu 12.04 or Mint 14; however it only displayed the Mint boot options. I chose to boot up Mint and it loaded with no issue. On my desktop, there is an 85 GB Volume Displayed (that contains directories from my Ubuntu system), however due to Encryption, I cannot access my home directory (/home/regor).
Is there any way I can boot into Ubuntu again? Or is there at least a way that I can access and move these directories and files into my Mint partition (to eventually grow to the entire drive if Ubuntu boot isn't possible)?
Any help is much appreciated, thanks.