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<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><u><span
style='font-size:14.0pt;font-family:Tahoma'>Creating a <span class=SpellE>CentOS</span>
5.0 Template for <span class=SpellE>OpenVZ</span><o:p></o:p></span></u></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Tahoma'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=1 type=1>
that you wish to package.<span style='mso-spacerun:yes'> </span>This
could be a minimal <span class=SpellE>distro</span> or the default <span
class=SpellE>distro</span> or even something custom.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Once the OS has been
installed, you need to <b style='mso-bidi-font-weight:normal'>tar</b> the
contents of the OS.<o:p></o:p></span></li>
<ol style='margin-top:0in' start=1 type=a>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
style='font-size:10.0pt;font-family:Tahoma'>First, create a file called <b
style='mso-bidi-font-weight:normal'>/<span class=SpellE>tmp</span>/exclude
</b>and add the following lines to it:<o:p></o:p></span></li>
</ol>
</ol>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>.<span class=SpellE>bash_history</span><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
class=SpellE><span style='font-size:10.0pt;font-family:"Courier New"'>lost+found</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/dev/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/<span class=SpellE>mnt</span>/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/<span class=SpellE>tmp</span>/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/proc/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/sys/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.25in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'>/<span class=SpellE>usr/src</span>/*<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:Tahoma'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=2 type=1>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
style='font-size:10.0pt;font-family:Tahoma'>Now, <b style='mso-bidi-font-weight:
normal'>tar </b>the OS file up by typing:<o:p></o:p></span></li>
</ol>
</ol>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
font-family:"Courier New"'>tar –<span class=SpellE>czvf</span>
/tmp/centos-5.0-<ARCH>-<DISTRO>-<span class=SpellE>image.tar.gz</span>
/ –X<span style='mso-spacerun:yes'> </span>/<span class=SpellE>tmp</span>/exclude<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:"Courier New"'><span style='mso-tab-count:
2'> </span><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
or <b style='mso-bidi-font-weight:normal'>x86_64</b>) and <b style='mso-bidi-font-weight:
normal'><DISTRO></b> represents the distribution (<b style='mso-bidi-font-weight:
normal'>default</b>, <b style='mso-bidi-font-weight:normal'>minimal</b>, etc.).<o:p></o:p></span></p>
<ol style='margin-top:0in' start=2 type=1>
style='font-size:10.0pt;font-family:Tahoma'>Now transfer the file over to
the <span class=SpellE>OpenVZ</span> server into <b style='mso-bidi-font-weight:
normal'>/<span class=SpellE>vz</span>/template/cache </b>folder.<o:p></o:p></span></li>
</ol>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='mso-bidi-font-weight:normal'>/vz/private/50</b> and copying the <b
style='mso-bidi-font-weight:normal'>/<span class=SpellE>etc/vz/conf/ve-vps.basic.conf-sample</span></b>
to <b style='mso-bidi-font-weight:normal'>/etc/vz/conf/50.conf</b>.<o:p></o:p></span></li>
</ol>
<p class=MsoNormal style='margin-left:.25in'><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><b style='mso-bidi-font-weight:
normal'><span style='font-size:8.0pt;font-family:Tahoma;color:red'>NOTE:<o:p></o:p></span></b></p>
<p class=MsoNormal style='margin-left:.5in'><b style='mso-bidi-font-weight:
style='font-size:8.0pt;font-family:Tahoma;color:red'> is the VEID for the
VPS.<span style='mso-spacerun:yes'> </span>You can choose any unused VEID on
the <span class=SpellE>OpenVZ</span> server.<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:8.0pt;
font-family:Tahoma'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=4 type=1>
<b style='mso-bidi-font-weight:normal'>/vz/template/centos/5.0/<ARCH>/<span
class=SpellE>config</span></b> again where <b style='mso-bidi-font-weight:
normal'><ARCH></b> represents the system architecture.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Create a file in the folder
called <b style='mso-bidi-font-weight:normal'>rpm</b> and add the
following line:<o:p></o:p></span></li>
</ol>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>43<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=6 type=1>
style='font-size:10.0pt;font-family:Tahoma'>Create a file called <span
class=SpellE><b style='mso-bidi-font-weight:normal'>yum.conf</b></span> in
the folder and add the following lines:<o:p></o:p></span></li>
</ol>
<p class=MsoNormal style='margin-left:.25in'><span style='font-size:10.0pt;
font-family:Tahoma'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>[main]<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>cachedir</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=/vz/template/centos/5.0/<ARCH>/yum-cache/<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>reposdir</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=/dev/null<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>installonlypkgs</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=''<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>[centos5-base]<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>name=<span class=SpellE>CentOS</span> 5 - <ARCH>
- Base<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>baseurl</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=http://mirror.centos.org/centos/5/os/<ARCH>/<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>enabled=1<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>gpgcheck</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=1<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>[centos5-updates-released]<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>name=<span class=SpellE>CentOS</span> 5 - <ARCH>
- Released Updates<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>baseurl</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=http://mirror.centos.org/centos/5/updates/<ARCH>/<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>enabled=1<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>gpgcheck</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'>=1<o:p></o:p></span></p>
<ol style='margin-top:0in' start=7 type=1>
style='font-size:10.0pt;font-family:Tahoma'>Copy <b style='mso-bidi-font-weight:
normal'>/etc/vz/dists/centos-4.conf</b> to <b style='mso-bidi-font-weight:
normal'>/etc/vz/dists/centos-5.0.conf</b>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Change to the <b
class=SpellE>image.tar.gz</span> | tar –<span class=SpellE>xvf</span> –<b
style='mso-bidi-font-weight:normal'> </b></span><span style='font-size:
10.0pt;font-family:Tahoma'>to unpack the base image to the folder.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Make sure you are in the <b
style='mso-bidi-font-weight:normal'>/vz/private/50</b> folder.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Edit <b style='mso-bidi-font-weight:
normal'>etc/shadow</b> and remove the replace the <b style='mso-bidi-font-weight:
normal'>root</b> password with <b style='mso-bidi-font-weight:normal'>!!</b>
instead of the hashed value.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Edit the <b style='mso-bidi-font-weight:
style='mso-bidi-font-weight:normal'>tty1</b> through <b style='mso-bidi-font-weight:
normal'>tty6</b>.<span style='mso-spacerun:yes'> </span>Just put a <b
style='mso-bidi-font-weight:normal'>#</b> at the beginning of the line.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Remove the <b
style='font-size:10.0pt;font-family:"Courier New"'> –s /proc/mounts etc/<span
class=SpellE>mtab</span></span><span style='font-size:10.0pt;font-family:
Tahoma'>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Remove all of the lines from <b
style='mso-bidi-font-weight:normal'>etc/<span class=SpellE>fstab</span></b>
except for the line that mounts <b style='mso-bidi-font-weight:normal'>/dev/pts</b>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Edit <b style='mso-bidi-font-weight:
the line that starts <b style='mso-bidi-font-weight:normal'>/<span
class=SpellE>sbin/start_udev</span></b> by placing a <b style='mso-bidi-font-weight:
normal'>#</b> at the beginning of the line.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Now create device nodes by
typing:<o:p></o:p></span></li>
</ol>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>mknod</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> dev/<span class=SpellE>ptmx</span>
c 5 2<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>mkdir</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> dev/pts<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'>/<span class=SpellE>sbin</span>/MAKEDEV –d
/vz/private/50/dev <span class=SpellE>ttyp</span> <span class=SpellE>ptyp</span><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>mknod</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> dev/null c 1 3<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span class=SpellE><span
style='font-size:10.0pt;font-family:"Courier New"'>mknod</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> dev/<span class=SpellE>urandom</span>
c 1 9<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=16 type=1>
style='font-size:10.0pt;font-family:Tahoma'>Create the <span class=SpellE><b
style='mso-bidi-font-weight:normal'>var</b></span><b style='mso-bidi-font-weight:
normal'>/lock/rpm</b> folder.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>If you wish to disable IPv6,
do the following:<o:p></o:p></span></li>
<ol style='margin-top:0in' start=1 type=a>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
normal'>etc/<span class=SpellE>sysconfig</span>/network</b> and set <b
style='mso-bidi-font-weight:normal'>NETWORKING_IPV6</b> to <b
style='mso-bidi-font-weight:normal'>no</b>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
style='font-size:10.0pt;font-family:Tahoma'>Add the following lines to <b
style='mso-bidi-font-weight:normal'>etc/<span class=SpellE>modprobe.d</span>/blacklist</b>:<o:p></o:p></span></li>
</ol>
</ol>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
font-family:"Courier New"'>blacklist ipv6<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
font-family:"Courier New"'>blacklist net-pf-10<o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:1.0in'><span style='font-size:10.0pt;
font-family:"Courier New"'><o:p> </o:p></span></p>
<ol style='margin-top:0in' start=18 type=1>
number starting from <b style='mso-bidi-font-weight:normal'>0</b>) and
setting <b style='mso-bidi-font-weight:normal'>ONBOOT</b> to <b
style='mso-bidi-font-weight:normal'>no</b>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Now you’re ready to start the
class=SpellE><span style='font-size:10.0pt;font-family:"Courier New"'>vzctl</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> start 50</span><span
style='font-size:10.0pt;font-family:Tahoma'> and wait for it to start.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>You can install additional
<package></span><span style='font-size:10.0pt;font-family:Tahoma'>
at the prompt where <b style='mso-bidi-font-weight:normal'><package></b>
represents the name of the software package you wish to install.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Finally, you should turn off
unnecessary services.<o:p></o:p></span></li>
<ol style='margin-top:0in' start=1 type=a>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
class=SpellE><span style='font-size:10.0pt;font-family:"Courier New"'>vzctl</span></span><span
style='font-size:10.0pt;font-family:"Courier New"'> enter 50</span><span
style='font-size:10.0pt;font-family:Tahoma'>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
style='font-size:10.0pt;font-family:Tahoma'>View the services that are
style='font-size:10.0pt;font-family:"Courier New"'> --list | <span
class=SpellE>grep</span> 5:on</span><span style='font-size:10.0pt;
font-family:Tahoma'>.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level2 lfo1;tab-stops:list 1.0in'><span
style='font-size:10.0pt;font-family:Tahoma'>Disable any unwanted service
10.0pt;font-family:"Courier New"'> --levels 2345 <service> off</span><span
style='font-size:10.0pt;font-family:Tahoma'> where <b style='mso-bidi-font-weight:
normal'><service></b> represents the service to disable.<o:p></o:p></span></li>
</ol>
</ol>
<span class=SpellE><b style='mso-bidi-font-weight:normal'>apmd</b></span>, <b
style='mso-bidi-font-weight:normal'>kudzu</b>, and <span class=SpellE><b
style='mso-bidi-font-weight:normal'>microcode_ctl</b></span>.<o:p></o:p></span></p>
<ol style='margin-top:0in' start=22 type=1>
style='font-size:10.0pt;font-family:Tahoma'>Exit the VPS by typing </span><span
style='font-size:10.0pt;font-family:"Courier New"'>exit</span><span
style='font-size:10.0pt;font-family:Tahoma'> at the prompt.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Stop the VPS by typing <span
class=SpellE>vzctl</span> stop 50.<o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>Finally, package up the new
/vz/template/cache/centos-5.0-<ARCH>-<DISTRO>.<span
class=SpellE>tar.gz</span> .</span><span style='font-size:10.0pt;
font-family:Tahoma'><o:p></o:p></span></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1;tab-stops:list .5in'><span
style='font-size:10.0pt;font-family:Tahoma'>The template is ready for use.<o:p></o:p></span></li>
</ol>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:Tahoma'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.25in'><span
style='font-size:10.0pt;font-family:Tahoma'><o:p> </o:p></span></p>
</div>
