<HTML ><HEAD ><TITLE >Verify console operation</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Remote Serial Console HOWTO" HREF="index.html"><LINK REL="UP" TITLE="Reboot and test" HREF="test.html"><LINK REL="PREVIOUS" TITLE="Reboot and test" HREF="test.html"><LINK REL="NEXT" TITLE="Re-create saved console settings" HREF="recreate-ioctl-save.html"></HEAD ><BODY CLASS="SECTION" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Remote Serial Console HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="test.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 8. Reboot and test</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="recreate-ioctl-save.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECTION" ><H1 CLASS="SECTION" ><A NAME="TEST-VERIFY" ></A >8.1. Verify console operation</H1 ><P >If possible, plug an <SPAN CLASS="ACRONYM" >RS-232</SPAN > breakout box into the serial port. During reboot the Data Terminal Ready line should become active and then the Transmit Data lights should flash as console messages appear.</P ><P >Attach a modem, or a null modem cable and a terminal. Configure them to match the serial parameters used by the serial console port. If using a modem, dial in to it from a terminal emulator.</P ><DIV CLASS="INFORMALFIGURE" ><A NAME="TEST-VERIFY-OPERATION-CONNECT" ></A ><P ></P ><TABLE BORDER="1" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="SCREEN" ><B CLASS="COMMAND" >+++</B > <B CLASS="COMMAND" >AT Z</B > <B CLASS="COMMAND" >AT DT 1234-5678</B > <TT CLASS="COMPUTEROUTPUT" >CONNECT 9600</TT ></PRE ></FONT ></TD ></TR ></TABLE ><P ></P ></DIV ><P >Configure the terminal or terminal emulator to match the serial parameters used by the serial console. If using a modern Hayes <SPAN CLASS="ACRONYM" >AT</SPAN >-style modem then the speed need not match. If using a directly-attached terminal then the speed must match.</P ><P >Reboot the computer.</P ><DIV CLASS="INFORMALFIGURE" ><A NAME="AEN2041" ></A ><P ></P ><TABLE BORDER="1" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="SCREEN" ><TT CLASS="PROMPT" >bash#</TT > <B CLASS="COMMAND" >shutdown -r now</B ></PRE ></FONT ></TD ></TR ></TABLE ><P ></P ></DIV ><P >During reboot the terminal should see the usual boot loader text, and then the default kernel booting, then the <SPAN CLASS="APPLICATION" >init</SPAN > output, and finally the contents of <TT CLASS="FILENAME" >/etc/issue</TT > and <SPAN CLASS="APPLICATION" >getty</SPAN > asking you to login.</P ><DIV CLASS="INFORMALFIGURE" ><A NAME="AEN2049" ></A ><P ></P ><TABLE BORDER="1" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="SCREEN" >LILO: Linux version … Kernel command line: auto BOOT_IMAGE=linux ro root=306 BOOT_FILE=/boot/vmlinuz-2.4.3-12 console=tty0 console=ttyS0,9600n8 … INIT version … … /etc/issue says "All your base are belong to us". remote.example.edu.au ttyS0 login:</PRE ></FONT ></TD ></TR ></TABLE ><P ></P ></DIV ><P >If you do not see the <TT CLASS="PROMPT" >login:</TT > message then press <B CLASS="KEYCAP" >Return</B > or <B CLASS="KEYCAP" >Enter</B >.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="test.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="recreate-ioctl-save.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Reboot and test</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="test.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Re-create saved console settings</TD ></TR ></TABLE ></DIV ></BODY ></HTML >