Note the (2004). Some things were removed/added/changed (/initrd, /sys, several things in /usr). Check <https://linux.die.net/man/7/hier https://linux.die.net/m

Note the (2004). Some things were removed/added/changed (/initrd, /sys, several things in /usr). Check <https://linux.die.net/man/7/hier https://linux.die.net/man/7/hier> for an up-to-date resource.