$ df -h Filesystem Size Used Avail Use% Mounted on udev 7.8G 0 7.8G 0% /dev tmpfs 1.6G 131M 1.5G 9% /run /dev/mapper/ubuntu--vg-root 102G 59G 38G 62% / tmpfs 7.9G 19M 7.8G 1% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup /dev/loop0 142M 142M 0 100% /snap/skype/38 /dev/loop1 79M 79M 0 100% /snap/vscode/38 /dev/loop2 80M 80M 0 100% /snap/vscode/42 /dev/loop3 133M 133M 0 100% /snap/skype/41 /dev/loop4 1.8M 1.8M 0 100% /snap/loop-rs/4 /dev/loop5 128K 128K 0 100% /snap/hello/20 /dev/loop6 87M 87M 0 100% /snap/core/4830 /dev/loop7 87M 87M 0 100% /snap/core/4650 /dev/loop8 138M 138M 0 100% /snap/skype/33 /dev/loop9 87M 87M 0 100% /snap/core/4917 /dev/loop10 79M 79M 0 100% /snap/vscode/37 /dev/sda1 472M 340M 108M 76% /boot /dev/sdb 1.8T 1.6T 152G 92% /home tmpfs 1.6G 16K 1.6G 1% /run/user/121 tmpfs 1.6G 80K 1.6G 1% /run/user/1000 $ ls -ahl /boot total 331M drwxr-xr-x 4 root root 4.0K Jul 4 09:06 . drwxr-xr-x 27 root root 4.0K Jul 3 10:03 .. -rw-r--r-- 1 root root 1.5M Jan 19 03:56 abi-4.13.0-31-generic -rw-r--r-- 1 root root 1.5M May 28 07:10 abi-4.13.0-45-generic -rw-r--r-- 1 root root 1.5M Jun 11 16:25 abi-4.13.0-46-generic -rw-r--r-- 1 root root 1.4M Jan 25 2017 abi-4.8.0-37-generic -rw-r--r-- 1 root root 1.4M Mar 3 2017 abi-4.8.0-41-generic -rw-r--r-- 1 root root 209K Jan 19 03:56 config-4.13.0-31-generic -rw-r--r-- 1 root root 209K May 28 07:10 config-4.13.0-45-generic -rw-r--r-- 1 root root 209K Jun 11 16:25 config-4.13.0-46-generic -rw-r--r-- 1 root root 195K Jan 25 2017 config-4.8.0-37-generic -rw-r--r-- 1 root root 195K Mar 3 2017 config-4.8.0-41-generic drwxr-xr-x 5 root root 1.0K Jul 4 09:06 grub -rw-r--r-- 1 root root 11M Feb 19 12:47 initrd.img-4.13.0-19-generic -rw-r--r-- 1 root root 57M Feb 19 12:47 initrd.img-4.13.0-31-generic -rw-r--r-- 1 root root 59M Jun 24 17:16 initrd.img-4.13.0-45-generic -rw-r--r-- 1 root root 59M Jul 3 10:04 initrd.img-4.13.0-46-generic -rw-r--r-- 1 root root 41M Feb 19 12:47 initrd.img-4.8.0-37-generic -rw-r--r-- 1 root root 41M Feb 19 12:47 initrd.img-4.8.0-41-generic drwx------ 2 root root 12K Sep 4 2016 lost+found -rw-r--r-- 1 root root 179K Jan 28 2016 memtest86+.bin -rw-r--r-- 1 root root 181K Jan 28 2016 memtest86+.elf -rw-r--r-- 1 root root 181K Jan 28 2016 memtest86+_multiboot.bin -rw-r--r-- 1 root root 255 May 28 07:10 retpoline-4.13.0-45-generic -rw-r--r-- 1 root root 255 Jun 11 16:25 retpoline-4.13.0-46-generic -rw------- 1 root root 3.7M Jan 19 03:56 System.map-4.13.0-31-generic -rw------- 1 root root 3.8M May 28 07:10 System.map-4.13.0-45-generic -rw------- 1 root root 3.8M Jun 11 16:25 System.map-4.13.0-46-generic -rw------- 1 root root 3.9M Jan 25 2017 System.map-4.8.0-37-generic -rw------- 1 root root 3.9M Mar 3 2017 System.map-4.8.0-41-generic -rw------- 1 root root 7.5M Jan 19 03:56 vmlinuz-4.13.0-31-generic -rw------- 1 root root 7.6M May 28 07:10 vmlinuz-4.13.0-45-generic -rw------- 1 root root 7.6M Jun 11 16:25 vmlinuz-4.13.0-46-generic -rw------- 1 root root 7.2M Jan 25 2017 vmlinuz-4.8.0-37-generic -rw------- 1 root root 7.2M Mar 3 2017 vmlinuz-4.8.0-41-generic