[ubuntu] deleted 2 partitions with gparted now will not boot, more within pls and thx

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http://ubuntuforums.org – hello all, well , I made a real bonehead move today. I had pc set up to boot Mint, Ubuntu and win7. Ubuntu and Win7 on a SSD and Mint on seperate 1 TB HD , I also have a 2TB storage drive. referencing the boot choices provided by grub I wanted to delete the Mint partitions (mint 11 and mint 12 each on their own partition) mint 11 on /dev/sdb5 and mint 12 on /dev/sdb7 for reference my win7/ubuntu ssd is dev/sda1 <the ssd. ubuntu installed along windows. i.e. in grub I would choose the win7 loader and arrow down to ubuntu to boot it. here is what I did: in ubuntu I opened gparted and (Hardware)