root@ubuntu:/# sudo ls /boot
abi-3.13.0-57-generic         memtest86+.bin
config-3.13.0-57-generic      memtest86+.elf
efi               memtest86+_multiboot.bin
grub                  System.map-3.13.0-57-generic
initrd.img-3.13.0-57-generic  vmlinuz-3.13.0-57-generic
lost+found
root@ubuntu:/#