<HTML ><HEAD ><TITLE >Rebooting</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.63 "><LINK REL="HOME" TITLE="The Linux System Administrator's Guide" HREF="index.html"><LINK REL="UP" TITLE="Boots And Shutdowns" HREF="boots-and-shutdowns.html"><LINK REL="PREVIOUS" TITLE="More about shutdowns" HREF="x1949.html"><LINK REL="NEXT" TITLE="Single user mode" HREF="x1992.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >The Linux System Administrator's Guide: Version 0.7</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x1949.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 8. Boots And Shutdowns</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="x1992.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="AEN1983" >8.4. Rebooting</A ></H1 ><P >Rebooting means booting the system again. This can be accomplished by first shutting it down completely, turning power off, and then turning it back on. A simpler way is to ask <B CLASS="COMMAND" >shutdown</B > to reboot the system, instead of merely halting it. This is accomplished by using the <TT CLASS="OPTION" >-r</TT > option to <B CLASS="COMMAND" >shutdown</B >, for example, by giving the command <B CLASS="COMMAND" >shutdown -r now</B >.</P ><P >Most Linux systems run <B CLASS="COMMAND" >shutdown -r now</B > when ctrl-alt-del is pressed on the keyboard. This reboots the system. The action on ctrl-alt-del is configurable, however, and it might be better to allow for some delay before the reboot on a multiuser machine. Systems that are physically accessible to anyone might even be configured to do nothing when ctrl-alt-del is pressed. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x1949.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="x1992.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >More about shutdowns</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="boots-and-shutdowns.html" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Single user mode</TD ></TR ></TABLE ></DIV ></BODY ></HTML >