I currently have Ubuntu desktop installed on a hard disk. I want to partition the hard disk so that I can reserve 30GB for Ubuntu server and 30GB for Ubuntu desktop. The drive has 300GB available. Right now I am booting from dvd drive and installing ubuntu server. I selected "Guided partitioning" and created a 30GB primary partition of Ext4 journaling filesystem, set "yes, format it" for format partition and set bootable flag to on. I intend to use this 30 gig partition to hold ubuntu server and allow me to boot from it.
Now I have two other partitions. They are both set to "logical", one is currently using 285.8 gigs and is using ext4 (when I try to set bootable flag to true, it gives a warning "You are trying to set the bootable flag on a logical partition. The bootable flag is only useful on the primary partitions"). More alarming it says "No existing file system was detected in this partition". Actually, Im thinking that this is the partition that is supposed to be holding my current Ubuntu Desktop. And of course I want this to be bootable and be a primary partition, so I could dual boot from this and the server partition.
Now the third partition is also set to logical and it is being used as swap area.
How do I switch the second partition to primary and to make sure that its pointing to my existing desktop installation?