posted 12 years ago
If all that you wanted to do was to reduce the size of your boot menu, then removing the /boot/vmlinuz*KERNEL-VERSION* file(s) would be sufficient. I usually monitor my Linux updates and when it wants to install a new kernel, I rename the prior kernel (I usually have 2 kernels in by boot menu, the current one I am running and the prior kernel) /boot/vmlinuzXXX file so that when the grub update runs only the current and new kernel get added to the boot menu. By renaming, all of the old kernels are still there and available, and then don't take up that much space, and besides disk is still relatively cheap.