1. NetBSD and Linux as Xen-Guest Christoph Egger
Xen Workshop
NetBSD and Linux as Xen-Guest
Christoph Egger
March 2009
Xen-Workshop

2. Xen Workshop
Create the image: dd if=/dev/zero of=./domu.img bs=1m count=2000
Or alternatively get image from previous Qemu or KVM installation
Create guest config file (in detail on next slides)
Start guest: xm create domu.conf
Attention: HVM vs. PV DomU /etc/fstab entries in the guest image disk devices may be different
Xen-Workshop

3. Xen Workshop
Guest config variables: name Guest name (xm list) kernel Bootkernel memory Guest memory in Megabyte vcpus Number of virtual cpus vif Network configuration disk Disk configuration boot Boot order extra Kernel Parameters vnc Enable/Disable VNC vnclisten Listen on which interfaces (default „ “) pci PCI passthrough (default disabled)
Xen-Workshop

4. Xen Workshop
PV DomU name=“my-pv-guest“ kernel=“/path/to/domu-kernel“ memory=1024 vcpus=2 vif=[ 'bridge=bridge0' ] disk=[ 'file:/path/to/domu.img,0x1,w', 'phy:/dev/cd0a,0x2,r' ] boot=“cd“ extra=““
Xen-Workshop

5. Xen Workshop
HVM DomU name=“my-hvm-guest“ kernel=“/path/to/hvmloader“ memory=1024 vcpus=2 vif=[ 'type=ioemu,bridge=bridge0' ] disk=[ 'file:/path/to/domu.img,0x1,w', 'phy:/dev/cd0a,0x2,r' ] boot=“cd“ extra=““ vnc=1 vnclisten=“ “ pci=['02:00:00']
Xen-Workshop

6. Xen Workshop
Dom0 differences: Installations-Pfade: kernel=“/usr/pkg/lib/xen/boot/hvmloader“ kernel=“/usr/lib64/xen/bin/hvmloader“ kernel=“/usr/lib/xen/bin/hvmloader“ PCI Passthrough: (lspci, pcictl pci0 list)
pci=['02:00:00']
DomU differences: *BSD: disk=[ 'file:/path/to/domu.img,0x1,w' ] Linux: disk=[ 'file:/path/to/domu.img,hda,w' ]
Xen-Workshop