Product data

Chapter 2. Installation 25
This command extract the disk images (dvmdisk1.img, dvmdisk2.img,
dvmdisk3.img,...dvmdisk7.img).
4. Create the domain XML file (or use the template, if it is present).
You have to provide custom values for the following fields:
– MAC addresses (mac address tag). You can use the following script to
generate MAC addresses:
echo -n 00:1A:64 ; for i in `seq 1 3` ; do echo -n `echo
":$RANDOM$RANDOM" | cut -n -c -3` ;done; echo \n
Replace the 00:1A:64 with your preferred prefix.
– Bridge name (source bridge tag). To discover the available bridges on
your host, run the brctl show command. A second bridge is needed for
the private management network.
– VM name, source files for hard disks and CDROM. You might want to
update the memory and CPU values.
Also note the <serial> tag for the output of VM progress and other
messages. Without it, the output of the OS boot will not go to the VNC
session and you might think that the boot is hung.
Note: Do not use <driver name='qemu' cache='writeback'/> for disks.
Although this tag improves disk I/O performance, it might cause image
corruption. Refer to
https://bugzilla.redhat.com/show_bug.cgi?id=572825 for details.