Tried a different approach. Removed the two oldest kernels using Synaptic and then checked the results with Grub2 GUI. When opening the file, the kernels were removed but Grub2 crashed without even saving. It generated and sent an error report. The OS is Ubuntu 12.04.
Tried a different approach. Removed the two oldest kernels using Synaptic and then checked the results with Grub2 GUI. When opening the file, the kernels were removed but Grub2 crashed without even saving. It generated and sent an error report. The OS is Ubuntu 12.04.