Xen Virtualization on Linux and Solaris

Set up Sun xVM 3.4.2 on top of opensolaris 1002-128a via binary packages been built by Pascal Gienger at Index of /software/xvm/3.4.2. Been performing testing bellow my major concern was ability Sun xVM 3.4.2 to handle PV DomUs with boot file systems of ext4fs type. Actually, two guests have been tested : F12 and Ubuntu Karmic Server, in both cases boot partition has been converted to ext3fs to create DomUs manageable via virsh ( virt-manager).

wget http://southbrain.com/software/xvm/3.4.2/SUNWlibvirt-xvm-3.4.2.pkg
wget http://southbrain.com/software/xvm/3.4.2/SUNWlibvirtr-xvm-3.4.2.pkg
wget http://southbrain.com/software/xvm/3.4.2/SUNWurlgrabber-xvm-3.4.2.pkg
........
pkgadd -d SUNWurlgrabber-xvm-3.4.2.pkg
pkgadd -d SUNWlibvirtr-xvm-3.4.2.pkg
pkgadd -d SUNWurlgrabber-xvm-3.4.2.pkg
.......

svcadm enable milestone/xvm

After packages install and enabling xVM, grub entry for xVM should look like :-

title Xen Solaris Development snv_128a X86
findroot (pool_rpool,0,a)
bootfs rpool/ROOT/opensolaris
kernel$ /boot/$ISADIR/xen.gz console=vga dom0_mem=2048M dom0_vcpus_pin=false watchdog=false
module$ /platform/i86xpv/kernel/$ISADIR/unix /platform/i86xpv/kernel/$ISADIR/unix -B $ZFS-BOOTFS
module$ /platform/i86pc/$ISADIR/boot_archive

Install HVM DomU via virt-install :-

virt-install --debug -n KarmicSRV --hvm -r 2048 \
--vcpus=1 -f /dev/zvol/dsk/tvsk2/disk \
--vnc -c /export/home/boris/isos/karmic.iso


Login into HVM :-

# cd /etc/init
# cp tty1.conf hvc0.conf
# vi hvc0.conf
and replace tty1 with hvc0

Shutdown HVM and load PV DomU first time via profile

# cat koala1.py
name="KarmicPV"
memory=2048
bootloader="/usr/lib/xen/bin/pygrub"
kernel="/vmlinuz-2.6.31-14-server"
ramdisk="/boot/initrd.img-2.6.31-14-server"
vif=[' ']
disk=['phy:/dev/zvol/dsk/tvsk2/disk,xvda,w']
extra="root=/dev/xvda2 ro console=hvc0"

xm create -c koala1.py

When DomU gets loaded run tasksel and install Ubuntu Desktop



Shutdown PV DomU and load HVM DomU
Replace grub2 with grub legacy at Karmic HVM DomU:-

# mv /boot/grub /boot/grub_backup
# mkdir /boot/grub
# apt-get --purge remove grub-pc grub-common os-prober
# apt-get install grub
# update-grub
# grub-install /dev/sda

Modify /boot/grub/menu.lst at DomU as follows:-

title Ubuntu 9.10, kernel 2.6.31-14-server (PV)
uuid 8f2cf635-75a0-40d3-9ae5-8d13ce97fe51
kernel /vmlinuz-2.6.31-14-server root=/dev/xvda2 ro quiet splash
initrd /initrd.img-2.6.31-14-server

title Ubuntu 9.10, kernel 2.6.31-14-server (HVM)
uuid 8f2cf635-75a0-40d3-9ae5-8d13ce97fe51
kernel /vmlinuz-2.6.31-14-server root=UUID=8a70da2f-c711-4b86-a785-efdd
0f5fdf8c ro quiet splash
initrd /initrd.img-2.6.31-14-server

Shutdown HVM and load PV DomU via profile koala2.py :-

name="KarmicPV1"
memory=2048
bootloader="/usr/lib/xen/bin/pygrub"
vif=[' ']
disk=['phy:/dev/zvol/dsk/tvsk2/disk,xvda,w']
vfb=['type=vnc,vncunused=1']

# xm create koala2.py
# vncviewer localhost:0

Run virsh dumpxml KarmicPVM > karmic.xml at runtime and shutdown DomU

# virsh define karmic.xml
# virsh start KarmicPV1
# vncviewer localhost :0








References
1. Sun xVM 3.4.2 available, dom0_min_mem

This entry was posted on Monday, December 7th, 2009 at 4:30 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.