3 printroot \- print the name of the root device on standard output
20 # Print only the root device, not a full mtab line
24 # Print the name of the root device
28 is useful for initializing the \fI/etc/mtab\fR when the system is booted.
29 It figures out what the root device is by searching \fI/dev\fR until it
30 finds a block special file with the right major/minor device numbers.