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Due to known issue attempt to virt-install OpenSuse 11 PV DomU at Xen 3.3 CentOS 5.2 Dom0 from nfs share fails immediately at startup. Approved procedure via Internet repositories for OpenSuse 10.3 requires internet connection speed at least 700 Kbit/sec to take reasonable time. OpenSuse 11.1 (with pygrub implemented) is due only in December 2008.However, pygrub coming along with current Xen Release 3.3(3.2.1) does allow to load OpenSuse 11 DomUs at CentOS 5.2 (RHEL 5.2) Dom0 with no problems.

This posting follows up the recent one Vncserver on SNV97 DomU at Xen 3.3 CentOS 5.2 Dom0 (64-bit) and is targeting enabling Sun's Java Web Start in FireFox 3.0.1 Web Browser with 32-bit JRE 6.0 plugin installed on 64-bit Linux. First of all install 32-bit Sun JRE 6.0 for Linux by running ./jre-6u-linux-i586-rpm.bin.Then install FireFox 3.0.1 into folder /usr/tmp/firefox for instance Create following symlink to make firefox aware of JRE.

Sun Xvnc implementation for Nevada, committed in build 76 provides 3 options in general. Third one is to start vncserver by hands. It allocates two ports 580(X) and 590(X), where (X) is available display number.Port 580(X) may be used for http://IP-DomU:580(X) connection to DomU , port 590(X) may be used by vncviewer IP-DomU:(X) connection. Both ways initiate loading Java Applets from DomU into Dom0. Connection via vncviewer has been selected on CentOS 5.2 Dom0 due to issue with Java Web Start and FireFox on 64-bit Linux. By some reasons first and second options provided by official Sun Xvnc failed on SNV97 DomU, successfully installed via pygrub in text mode as usual

Mentioned Xen port to CentOS 5.2 (64-bit) brought up daemons libvirtd and dnsmasq at Dom0. It makes patching of libvirt,libvirt-devel,libvirt-python packages and brings utility virt-install along with Xen 3.3 Hypervisor to system at a time.

Technical exercise bellow is targeting testing Jboss-Seam 2.0.2 SP1 with NetBeans 6.1 (JDK 6.0) to deploy Brian Leonard's Sample to Jboss 4.2.3 on Solaris Nevada ( build 96) with xVM kernel.Hibernate has been selected as persistence provider. Oracle 10gR2 database instance has been installed on SNV93 DomU for performance evaluation.

CentOS 5.2/RHEL 5.2 comes with a very highly modified Xen 3.03 which if I'm correct is in fact Xen 3.1 backported. If you wan to use the latest Xen 3.2.1 you need to update the hypervisor. This tutorial is for x86_64 because that's what I'm running on grantmcwilliams.com. If you want the 32 bit version modify the appropriate paths and file names.

ASUS P5K Premium/WIFI, P5K3 Deluxe,P5K Deluxe P5E3 Deluxe,Abit IP35 Pro,Gigabyte GA-P35-DQ6,MSI P35 Platinum have integrated on the board Realtek's NICs RTL8110SC/RTL8111B. RTL8110SC/RTL8111B (vs Marvell 88E8056 first NIC integrated on ASUS boards) are GLDv3 NICs and may be used for Solaris xVM PV and HVM DomUs creation at Solaris (Nevada) Dom0. However, disabling checksum offloading on Linux DomU front end network driver (eth0) is required to get network on DomU.

Following bellow is step by step procedure of SNV93 PV DomU install at SNV93 Dom0. Actually, all work to be done was performed at SolatisPV Serial Console, ending up with Sun Xvnc setup to provide graphical interface to SNV93 PV DomU. ZFS file system has been used as root image, installation source was set to a local path to SNV93 DVD ISO image.

Mentioned Xen port to CentOS 5.2 (64-bit) brought up daemons libvirtd and dnsmasq at Dom0, providing network bridging and NAT forwarding between Dom0 and DomUs. It also installs on the system command line utility virt-install.

The sample bellow briefly demonstrates attaching SXDE ISO images to SNV_93 DomU as a block oriented device which could be mounted afterwards on /mnt folder at DomU to support Sun Studio 12 Express install on PV DomU via graphical interface provided by Sun Xvnc implementation.

ASUS boards P5K Premium/WIFI, P5K3 Deluxe, P5E3 Deluxe have as second NIC integrated on the board RTL8110SC. RTL8110SC (vs Marvell Yukon) is GLDv3 NIC and may be used for Solaris xVM PV and HVM DomUs creation at Solaris (Nevada) Dom0. However, straight forward attempt to install SNV DomU in DHCP mode will time out at DHCP request phase due to failure checksum offloading on Realtek 8110SC.

Procedure described bellow installs packages mercurial, dev86, python-virtinst, virt-viewer. Virt-install as well as pygrub and hvmloader appear to be completely functional on Xen 3.2.1 F8 Dom0 and allow to create PV and HVM guests like on enterprise class system. Commands like xm start/stop/shutdown/reboot DomainName provide ability to manage created domains as on native Xen 3.1 F8 Dom0.

Package python-virtinst may be safely installed on Xen 3.2.1 F8 Dom0. Minor tuning of /usr/bin/pygrub and xend-config.sxp makes possible creating Linux DomUs with virt-install utilizing loop mounted ISO images

Unfortunately because of space constraints in a liveCD, you can’t squeeze all those ‘nice to have’ packages into one spot, so you have to download and setup xVM manually. A few things are broken, too so some minor tweaking is required. Here’s a list of steps required to get xVM setup as a Dom0 in OpenSolaris

Instructions mentioned bellow in general follow up the ones in my previous post, regarding OpenSolaris 2008/05 DomU at Xen 3.2.1 CentOS 5.1 Dom0 (64-bit). However, Xen 3.2.1 Dom0 had been built on CentOS 5.1 from the source obtained by cloning Mercurial Repository@xensource.com. Install Xen on Ubuntu 8.04 had been performed from Ubuntu Repositories and the patched as usual.

This posting attempts to address several issues raised up during the recent discussion at Lxer.com. View:- OpenSolaris 2008/05 Live CD worked for me just now
Install on bare metal is quite simple if OpenSolaris HCL has been consulted before it began.
Create installation profile for OS200805 HVM Guest ...

Install Ubuntu 8.04 Xen Server (amd64) as was recently advised by Todd Deshane in his notes @LiveJournal.com. To configure startup profile for Solaris Nevada build 87 at Ubuntu 8.04 Server Dom0 perform losetup of ISO image of Solaris DVD and change disk entry ....

For details that I might be missing a good resource is: http://howtoforge.com/ubuntu-8.04-server-install-xen-from-ub...
I will clean this up and do more testing when I have time
Any problems, questions leave a comment or post to the xen-users mailing list.
Also, this is just proof of concept, in production I would recommend things like LVM and network storage solutions like AoE, iSCSI, and DRDB.

Install OpenSolaris 2008/05, based on Nevada build 86, requires workaround recently suggested by Jurgen Keil.It's runtime profile differs from reqular one due to utilizing ZFS filesystem (vs UFS for regular Nevada builds) as was noticed by Mark Jonson at xen-discuss forum @opensolaris.org. Place OpenSolaris 2008/05 DVD in drive, wait until gets mounted and run ..

Instal HVM FreeBSD 7 DomU as usual hangs at Xen 3.2 (Xen 3.1) Linux Dom0s, in case when box has been built up with Intel CPU.Workaround bellow is not required by Xen 3.2 Linux Dom0s running on AMD Dual Core Chips and is quite neccessary for Linux Dom0s running on Core2Duo E8X00,E6X50,...