step@Cris:~$ ls -l /boot
totale 83547
-rw-r--r-- 1 root root  1271765 dic  8 20:32 abi-3.19.0-41-generic
-rw-r--r-- 1 root root  1271765 dic 18 13:36 abi-3.19.0-42-generic
-rw-r--r-- 1 root root   177808 dic  8 20:32 config-3.19.0-41-generic
-rw-r--r-- 1 root root   177808 dic 18 13:36 config-3.19.0-42-generic
drwxr-xr-x 3 root root     4096 gen  1  1970 efi
drwxr-xr-x 5 root root     1024 dic 21 21:59 grub
-rw-r--r-- 1 root root 27388970 dic 17 06:48 initrd.img-3.19.0-41-generic
-rw-r--r-- 1 root root 27384949 dic 21 21:59 initrd.img-3.19.0-42-generic
drwx------ 2 root root    12288 set 16 03:03 lost+found
-rw-r--r-- 1 root root   176500 mar 12  2014 memtest86+.bin
-rw-r--r-- 1 root root   178176 mar 12  2014 memtest86+.elf
-rw-r--r-- 1 root root   178680 mar 12  2014 memtest86+_multiboot.bin
-rw------- 1 root root  3628871 dic  8 20:32 System.map-3.19.0-41-generic
-rw------- 1 root root  3628871 dic 18 13:36 System.map-3.19.0-42-generic
-rw------- 1 root root  6571728 dic  8 20:32 vmlinuz-3.19.0-41-generic
-rw------- 1 root root  6573656 dic 17 06:48 vmlinuz-3.19.0-41-generic.efi.signed
-rw------- 1 root root  6571600 dic 18 13:36 vmlinuz-3.19.0-42-generic