You now have Windows, Ubuntu and 2 Mint systems (one on disk 2 and the other on disk 3).
The section of the menu.lst file between "BEGIN AUTOMAGIC KERNELS LIST" and "END DEBIAN AUTOMAGIC KERNELS LIST" is automatically generated. Don't manually make changes here because they will be overwritten when kernels are added or removed from the system. If you want to reduce the number of kernels displayed here then edit the line:
and specify the number of kernels you want listed.Code:# howmany=all
Then regenerate the menu.lst file with:
The section after "END DEBIAN AUTOMAGIC KERNELS LIST" you can edit to suit your requirements.Code:sudo update-grub
The only disadvantage to this setup is that only one linux system will update grub automatically when a new kernel is added. You could install a grub for each linux system and then chainload them but I use one copy of grub and update it manually.