Trying to install 14.04 LTS alongside Windows 7 I have four partitions (2 windows partitions), a ext4 for the ubuntu install, and a remaining ntfs data partition
As a follow up to Ubuntu 14.04 installer doesn't show existing partitions I encounter a very similar problem. Running fixparts however does not indicate any particular problem with the partition table.
Whatever I try to do, I always end up with an empty list in the installer and cannot choose anything to install /root to...
the drives might be encrypted and/or the ubuntu default drivers do not have your hard drive controller. I had the same issue when using RAID on my desktop with windows 7 a few years ago, the windows 7 disk did not have the raid controllers.
Don't do it. Cut the cord and go with Ubuntu. I was Windows Network Admin. and troubleshooter for 15 years. If you want to use Ubuntu, go for it and forget Windows. You are asking for trouble. I am definitely not saying it can't be done because it can. But, I have better things to do than chase down Windows errors. I replaced desktop that had Windows with Ubuntu Linux and got a Macbook Pro for portable. The computer should work for you not the other way around.
After reading a bit more the answer was already formulated in this post https://askubuntu.com/questions/486556/no-partitions-found-while-installing-dual-boot-win8-ubuntu-14-04
Using the procedure described in the first answer there, helped me clean up the partition table (by first booting into a Live GParted). Using fixparts for some reason didnt clean up all the remaining GPT data but actually turned MBR into GPT.
gdisk did the trick
