fajar

Part 1. Creating a Centos HVM domU with working PV drivers
#=======================================================================

start with standard Centos 5.3 x86_64 HVM install.
- my HVM domU config file :
#=================================================
memory = 500

vif = [ 'mac=00:16:3E:49:CA:65, bridge=br6' ]
disk =	[
	'phy:/dev/rootVG/testlv,hda,w',
	'file:/data/iso/centos.iso,hdc:cdrom,r',
	]

boot="cd"

device_model = '/usr/lib64/xen/bin/qemu-dm'
kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'

sdl=0
vnc=1
vnclisten="0.0.0.0"
#vncunused=0
vncpasswd=''
#stdvga=0
serial='pty'
#localtime=1

usbdevice='tablet'
acpi=1
apic=1
pae=1

vcpus=1
#=================================================

Note boot="cd". With this config if you're using "fresh" LVM or image file, the harddisk will be unbootable initally and it will boot from CD. After installation it will automatically boot from harddisk.

- if you want serial text console (like I do), on DVD installation splash screen start installation with
linux text console=vga console=ttyS0

- during package selection, unselect "desktop GNOME" if you want text login like I do. Although not required, this will reduce resource needs (e.g. memory) and make subsequent setup easier.
- proceed untill installation finished


activate PV drivers

- edit /boot/grub/menu.lst so it looks like this (note ide0=noprobe)
#=================================================
default=0
timeout=5
serial --unit=0 --speed=9600
terminal --timeout=5 serial console
title CentOS (2.6.18-128.el5)
	root (hd0,0)
	kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/VolGroup00/LogVol00 console=ttyS0 ide0=noprobe
	initrd /initrd-2.6.18-128.el5.img
#=================================================

- edit /etc/modprobe.conf so it looks like this
#=================================================
#alias eth0 8139cp
blacklist 8139cp
blacklist 8139too
alias scsi_hostadapter ata_piix
# xen HVM
alias eth0 xen-vnif
alias scsi_hostadapter1 xen-vbd
#=================================================

-recreate initrd
cd /boot
mv initrd-2.6.18-128.el5.img initrd-2.6.18-128.el5.img.bak
mkinitrd -v initrd-2.6.18-128.el5.img 2.6.18-128.el5

- init 6
- reconnect to domU console (with either "xm console" or vncviewer)
- login, check whether xen-vbd activates correctly
# ls -la /sys/class/net/eth0/device
lrwxrwxrwx 1 root root 0 Apr 25 11:50 /sys/class/net/eth0/device -> ../../../devices/xen/vif-0
# ls -la /sys/block/hda/device
lrwxrwxrwx 1 root root 0 Apr 25 11:50 /sys/block/hda/device -> ../../devices/xen/vbd-768

#=======================================================================
End of part 1.