<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML ><HEAD ><TITLE >Creating a volume group</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="LVM HOWTO" HREF="index.html"><LINK REL="UP" TITLE="Common Tasks" HREF="commontask.html"><LINK REL="PREVIOUS" TITLE="Initializing disks or disk partitions" HREF="initdisks.html"><LINK REL="NEXT" TITLE="Activating a volume group" HREF="activatevgs.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" >LVM HOWTO</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="initdisks.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 11. Common Tasks</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="activatevgs.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="sect1" ><H1 CLASS="sect1" ><A NAME="createvgs" ></A >11.2. Creating a volume group</H1 ><P > Use the 'vgcreate' program: <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" > <B CLASS="command" ># vgcreate my_volume_group /dev/hda1 /dev/hdb1 </B > </PRE ></FONT ></TD ></TR ></TABLE > <EM >NOTE:</EM > If you are using LVM 1 with devfs it is essential to use the full devfs name of the device rather than the symlinked name in <TT CLASS="filename" >/dev</TT >. So the above would be: <TABLE BORDER="0" BGCOLOR="#E0E0E0" WIDTH="100%" ><TR ><TD ><FONT COLOR="#000000" ><PRE CLASS="screen" > <B CLASS="command" ># vgcreate my_volume_group /dev/ide/host0/bus0/target0/lun0/part1 \ /dev/ide/host0/bus0/target1/lun0/part1</B > </PRE ></FONT ></TD ></TR ></TABLE > LVM 2 does not have this restriction. </P ><P > You can also specify the extent size with this command if the default of 32MB is not suitable for you with the '-s' switch. In addition you can put some limits on the number of physical or logical volumes the volume can have. </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="initdisks.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="activatevgs.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Initializing disks or disk partitions</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="commontask.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Activating a volume group</TD ></TR ></TABLE ></DIV ></BODY ></HTML >