.TH PRINTROOT 8 .SH NAME printroot \- print the name of the root device on standard output .SH SYNOPSIS \fBprintroot\fR .br .de FL .TP \\fB\\$1\\fR \\$2 .. .de EX .TP 20 \\fB\\$1\\fR # \\$2 .. .SH OPTIONS .FL "\-r" "Print only the root device, not a full mtab line" .SH EXAMPLES .EX "printroot" "Print the name of the root device" .SH DESCRIPTION .PP .I Printroot is useful for initializing the \fI/etc/mtab\fR when the system is booted. It figures out what the root device is by searching \fI/dev\fR until it finds a block special file with the right major/minor device numbers. .SH "SEE ALSO" .BR fstab (5), .BR boot (8).