This guide requires that you already have a CentOS 6 - If you do not have CentOS 6 installed, do it in KVM or VirtualBox or whatever you wanteven use an already existing CentOS 6 container.

At a CentOS 6 host as root do:<br/><code> yum install yum-utils<br/> yumdownloader centos-release.x86_64<br/> mkdir -p /newroot/var/lib/<br/> touch /newroot/var/lib/random-seed #without it, the initscript installation script will fail <br/> rpm --rebuilddb --root=/newroot<br/> rpm -i --root=/newroot --nodeps centos-release-6-35.el6.centos.911.2.x86_64.rpm<br/> yum --installroot=/newroot install -y rootfiles openssh-clients openssh-server yum yum-utils man wget sudo tar passwd<br/> yum --installroot=/newroot clean all<br/> ln -s /proc/mounts /newroot/etc/mtab<br/> rm -f /newroot/dev/null<br/> mknod -m 600 /newroot/dev/console c 5 1</code>

none /dev/pts devpts rw,gid=5,mode=620 0 0 none /dev/shm tmpfs defaults 0 0

ACTIVE_CONSOLES=/dev/tty[1-6]

ACTIVE_CONSOLES= Change timezone (if needed)  rm /newroot/etc/localtime <br /> ln -s /usr/share/zoneinfo/Your/Timezone /newroot/etc/localtime

<code> tar zcf /vz/template/cache/centos-6-x86_64.tar.gz -C /newroot .</code>

<code> rm -rf /newroot</code>And you are done!