I have my notebook with the preinstalled Windows 7. I've decided to try Ubuntu as well. Unfortunately I couldn't manage to install it. I was following the guide "How to dual-boot Windows 7 and Ubuntu 10.04.
After booting Ubuntu from the liveUSB and proceeding to the "Allocate drive space" dialogue box, I've discovered that the installed Windows 7 couldn't be identified and there is no item "Install Ubuntu alongside Windows 7".
In this situation I've chosen "Something else" item for manual partition allocation. But at the next dialogue box I couldn't find any of my 4 partitions. The only item which is visible is "/dev/sda/".
My question, what was wrong? And what should I do to overcome the stated issue?
P.S.: Initially there are was a problem with installation of Ubuntu due to the dynamic disk type. Using the EASEUS Partition Master I've revert it to basic disk type.