We presume , that xen-3.4.1-5.fc12.src.rpm has been already installed on the system and Xen Host been built via mentioned “rpm” , Libvirt 0.7.1-15 and 2.6.31.6 pvops kernel is up and running at the time of upgrade. Apply following patch to /root/rpmbuild/SPECS/xen.spec

Finally Mark Johnson submitted to xen-devel mailing list patch for ZFS 24 support at Xen 4.0. Patch mentioned bellow was successfully tested at Xen 4.0 Dom0 with pvops kernel 2.6.32.11 on top of Fedora 12

Finally Mark Jonson submitted to xen-devel mailing list patch for ZFS 24 support at Xen 4.0. Patch mentioned bellow was successfully tested at Xen 4.0 Dom0 with pvops kernel 2.6.32.11 on top of Fedora 12 via modifying Michael’s Young xen-4.0.0.7.fc12.src.rpm and direct patching xen 4.0 official tarball on Ubuntu Karmic Koala Server.

Regardless bug with failure checksum offloading was fixed in SNV_81 , i.e. a while ago. OpenSolaris 2009.06 PV DomU install at Xen 3.4.1 Linux Dom0 appears still to be affected. Wrong checksum may be easily captured via tcpdump on the LAN due to DHCPDISCOVER request issued by OSOL installer is a broadcast request.

The final target of this post is to demonstrate how flexible is Ubuntu Karmic Koala Server environment. Build Xen 4.0-rc8 and the most recent stable pvops kernel 2.6.32.10 Loading Xen Instance followed by install Ubuntu’s Libvirt environment, providing utility virt-install for creating PV and HVM DomUs, virt-manager completely functional to manage any DomU been built via virt-install.

Michael Young wrote xen-4.0.0-0.2.rc4.fc12.src.rpm for Xen-4-rc4 for Fedora 12 to install Hypervisor (changeset 20950).

The procedure bellow in general follows Thiago’s Martins submission to xen-devel mailing list.However,sequence of steps has been changed, git checkout procedure is more straight forward and one Change-set from xen-4.0-testing.hg back ported to Xen 4.0 to support grub2 notation ‘(hd0,1)’ specific for Ubuntu 10.04 aka Lucid Lynx.

Following bellow is build Xen Host on top Ubuntu 9.10 Server.It is based on direct clone via “hg” and build Xen 3.4.3-rc4 from xensource.com,applying Andrew Lyon’s 2.6.31 patch set V12 to vanilla kernel 2.6.31.12 along with tuning patched kernel via “make menuconfig” and building aka Suse xenified kernel in Ubuntu 9.10 environment.Notice that forward porting of original patch set was don

If you like the latest and greatest version of everything and you use an RPM based system you probably want to learn how to create RPMs. You don't have to, you can just download the latest source and compile and install it in /usr/local. This of course leaves your system in a state where your RPM database does not accurately reflect what is installed on your system.