Copying /proc/devices

In order for the MAKEDEV script properly create device entries in /dev it needs access to /proc/devices. We can't mount the proc file system on our LFS system yet so instead we just copy the /proc/devices file to $LFS/proc. This means the $LFS/proc/devices file won't be updated when the kernel updates /proc/devices but I don't see any harm in doing it, since it's only needed during the execution of the MAKEDEV script. Just make sure you don't add or remove any hardware during the next 3 minutes by loading or unloading a kernel module or rebooting your computer before continuing with this book.

Copy the /proc/devices file by running the following command:

root:~# cp /proc/devices $LFS/proc