Comment 3 for bug 1829553

Of course, here you go:

ls /boot
abi-4.15.0-20-generic initrd.img-4.15.0-48-generic System.map-4.15.0-20-generic
config-4.15.0-20-generic memtest86+.bin System.map-4.15.0-48-generic
config-4.15.0-48-generic memtest86+.elf vmlinuz-4.15.0-48-generic
grub memtest86+_multiboot.bin
initrd.img-4.15.0-20-generic retpoline-4.15.0-20-generic