I have Ubuntu 12.04 working fine, but need W7 occasionally. I just wanted to check that my plan for installing would work? Any help appreciated.

Current partitions are:

Partition....@ File System @ Mount Point @ Size.....@ Used.....@ Flags

/dev/sda1....@ ext4........@ /ext4a......@ 37 GiB...@ 776 MiB..@ boot

/dev/sda2....@ extended....@.............@ 122 GiB..@ -........@

./dev/sda5...@ ext4........@ / ..........@ 37 GiB...@ 6 GiB....@

.unallocated @ unallocated @.............@ 7 GiB....@ - ...... @

./dev/sda6 ..@ ext4........@ /home.......@ 77 GiB...@ 32 GiB...@

.unallocated @ unallocated @.............@ 65 GiB...@ - .......@

/dev/sda3...@ linux-swap..@.............@ 7 GiB....@ - .......@

My plan is to: - boot to ubuntu from USB ISO - change sda1 to NTFS - install W7 to sda1 - use the "Master Boot Record repair" utility to configure dual boot so I can see my original ubuntu installation as well as W7.

Have I missed something?

I'm concerned as to what the 776MB is that will be overwritten by the change to NTFS. It seems large for just the MBR?

Would also appreciate it if anyone can explain what sda5 and 6 are being used for? Is sda5 Ubuntu and sda6 my data?

Thanks in advance.