Problem gelöst. Alle Kernel funktionieren.
rimatheou@Aspire-5742:/boot$ ls abi-3.13.0-36-generic lost+found abi-3.13.0-39-generic memtest86+.bin abi-3.13.0-40-generic memtest86+.elf config-3.13.0-36-generic memtest86+_multiboot.bin config-3.13.0-39-generic System.map-3.13.0-36-generic config-3.13.0-40-generic System.map-3.13.0-39-generic grub System.map-3.13.0-40-generic initrd.img-3.13.0-36-generic vmlinuz-3.13.0-36-generic initrd.img-3.13.0-39-generic vmlinuz-3.13.0-39-generic initrd.img-3.13.0-40-generic vmlinuz-3.13.0-40-generic
Vielen herzlichen Dank!