<HTML ><HEAD ><TITLE >The installation</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Glibc Installation HOWTO" HREF="index.html"><LINK REL="UP" TITLE="The installation of glibc itself" HREF="the-install-of-glibc-itself.html"><LINK REL="PREVIOUS" TITLE="Obtaining and compiling the source" HREF="obtaining-and-compiling-the-source.html"><LINK REL="NEXT" TITLE="After the kernel is booted..." HREF="after-the-kernel-is-booted.html"></HEAD ><BODY CLASS="sect1" 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" >Glibc Installation HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="obtaining-and-compiling-the-source.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 4. The installation of glibc itself</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="after-the-kernel-is-booted.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="the-installation" ></A >4.2. The installation</H1 ><P > To install glibc you need a system with nothing running on it, since many processes (for example sendmail) always try to use the library and therefore block the files from being replaced. Therefore we need a <SPAN CLASS="QUOTE" >"naked"</SPAN > system, running nothing except the things we absolutely need. You can achieve this by passing the boot option <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >init=/bin/bash</PRE ></FONT ></TD ></TR ></TABLE > to your kernel. Depending on your bootloader you may need to do different things. In the following I will explain this using the two most common bootloaders, LILO (LInux-LOader) and GNU grub, as examples.</P ><DIV CLASS="sect2" ><H2 CLASS="sect2" ><A NAME="lilo" ></A >4.2.1. LILO</H2 ><P >To start the <SPAN CLASS="QUOTE" >"only-basics"</SPAN > system, reboot your computer and at the LILO prompt enter the kernel image-name you like to load and append <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >init=/bin/bash</PRE ></FONT ></TD ></TR ></TABLE > to it before pressing <B CLASS="keycap" >Return</B >. If you are planing to replace your glibc more often, it might be a good idea to add a separate configuration to your <TT CLASS="filename" >/etc/lilo.conf</TT >. For details, refer to the man-page of LILO.</P ></DIV ><DIV CLASS="sect2" ><H2 CLASS="sect2" ><A NAME="grub" ></A >4.2.2. Grub</H2 ><P >Grub is a newer bootloader, with enhanced support for different operating systems and and file system types (eg. it supports booting from reiserfs partitions). If you would like to know more go to: <A HREF="http://www.gnu.org/software/grub/" TARGET="_top" >http://www.gnu.org/software/grub/</A >, where you will find all the stuff you need.</P ><P >If you already have Grub installed, you probably use the text-based front-end to select the kernel you prefer to boot. Grub has a nice feature—instead of returning to doing everything by hand, you can simply select your entry and type <B CLASS="keycap" >e</B >, which will bring up an option menu. In this menu you will see the commands Grub executes prior to booting the kernel. Simply select the line saying <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >kernel="/where/your-kernel-is and-options-are"</PRE ></FONT ></TD ></TR ></TABLE > and press <B CLASS="keycap" >e</B > again. Now you can edit this line. Here you just add <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" >init=/bin/bash</PRE ></FONT ></TD ></TR ></TABLE > and after pressing <B CLASS="keycap" >Return</B > to make the changes take effect, press <B CLASS="keycap" >b</B > to start booting.</P ></DIV ></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="obtaining-and-compiling-the-source.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="after-the-kernel-is-booted.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Obtaining and compiling the source</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="the-install-of-glibc-itself.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >After the kernel is booted...</TD ></TR ></TABLE ></DIV ></BODY ></HTML >