![[Note]](../images/note.png)
The commands in the remainder of the book should be run as
the root user. Also,
double-check that ${CLFS} is set as
root.
When the kernel boots the system, it requires the presence
of a few device nodes, in particular the console and null devices. The device nodes will
be created on the hard disk so that they are available before
udev has been started, and additionally when Linux
is started in single user mode (hence the restrictive permissions on
console). Create these by running
the following commands:
mknod -m 600 ${CLFS}/dev/console c 5 1
mknod -m 666 ${CLFS}/dev/null c 1 3