$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.img-2.6.24-1-generic
find: /lib/firmware/2.6.24-1-generic: No such file or directory
find: /lib/firmware/2.6.24-1-generic: No such file or directory
find: /lib/firmware/2.6.24-1-generic: No such file or directory
find: /lib/firmware/2.6.24-1-generic: No such file or directory
find: /lib/firmware/2.6.24-1-generic: No such file or directory
find: /lib/firmware/2.6.24-1-generic: No such file or directory