There are no Linux "recovery" installs in that sense. Is I mentioned above, there are older kernels there. That is useful sometime when a kernel upgrade breaks you system. You can often boot into the older kernel and have the system still work.Why the nonsense like swap, and other Linuxes recovery mode that I don't remember installing be in the list?
As swap partition is always created automatically when you install Linux. You seem to have to, one of which isn't quite healthy. You can, at least with the Ubuntu installer, tell it to use only an existing swap partition without creating a new one. I would say you have two there because there are two Linux installs on there, or at least there are supposed to be.
Your partitions:Also, why are there so many partitions(sda4,5,6....) when I only created partitions for THREE OSes?
/dev/sda1 2,048 566,706,175 566,704,128 83 Linux /dev/sda2 * 566,708,940 772,067,834 205,358,895 7 NTFS / exFAT / HPFS /dev/sda3 772,079,614 976,771,071 204,691,458 5 Extended Extended partition linking to another extended partition. /dev/sda5 772,079,616 960,380,927 188,301,312 83 Linux /dev/sda6 960,382,976 968,445,951 8,062,976 82 Linux swap / Solaris /dev/sda4 968,458,240 976,771,071 8,312,832 82 Linux swap / Solaris /dev/sda3 overlaps with /dev/sda4Sda 1 is Ubuntu
Sda 2 is XP
Sda3 is an extended partition. It doesn't count as a partition in it's own right. It is kind of like a container for logical partitions.
Sda5 is probably where Backtrack got installed to, I think.
Sda 6 is a swap, maybe the one that got put in for Backtrack
Sda 4 is a swap, possibly the one that the Ubuntu installer made.
This all makes sense. There is nothing there that can't be accounted for. The only thing is, I fear that it is a bit messed up.
As I said, I don't feel qualified to help you try and fix it. You are better off waiting for someone with more of an idea about it than me.