Upgrade to Xen 3.2

The CentOS 5.1 distribution comes with Xen 3.1 as an option. To install this, you need to select "Virtualization" during the installation stage or

@virtualization

in the kickstart file.

There is no pre-compiled Xen 3.2 for CentOS 5 x86_64 available yet, so download the source RPM from xen.org.

Install the source RPM

rpm -i xen-3.2.0-0xs.centos5.src.rpm

which will leave the sources and spec file in /usr/src/redhat. The RPMs can be build when the build requirements are satisfied. The following list of packages should do.

yum install curl-devel dev86 gettext ghostscript \
            glibc-devel gnutls-devel gtk2-devel \
            libaio-devel libidn-devel libX11-devel \
            ncurses-devel openssl-devel perl \
            python-devel SDL-devel tetex-latex \
            texi2html transfig udev zlib-devel

I had to make one minor change to the spec file: I changed the line

#/usr/lib/xen/boot/hvmloader

to

/usr/lib/xen/boot/hvmloader

Install the resulting RPMS

rpm -i xen-libs-3.2.0-0xs.x86_64.rpm \
       xen-3.2.0-0xs.x86_64.rpm

Update GRUB: put /boot/xen.gz-3.2 in /etc/grub.conf

default=0
timeout=5
serial --unit=1 --speed=9600
terminal --timeout=5 serial console
title CentOS (2.6.18-53.1.14.el5xen)
        root (hd0,2)
        kernel /xen.gz-3.2 com2=9600,8n1 console=com2,vga
        module /vmlinuz-2.6.18-53.1.14.el5xen ro root=/dev/VolGroup00/LogVol00 console=xvc xencons=xvc
        module /initrd-2.6.18-53.1.14.el5xen.img