Hello everyone, I've written a very quick howto for people wanting to boot ovirt-node-iso via iPXE. Maybe I could put it somewhere in the wiki ? First, download the iso file. I've tried with a beta version of ovirt ;) wget "http://ovirt.org/releases/beta/binary/ovirt-node-iso-2.4.0-1.1.fc17.iso" Create a mountpoint : mkdir iso Mount image on it : mount -o loop ovirt-node-iso-2.4.0-1.1.fc17.iso iso Extract needed files with provided script : ./iso/LiveOS/livecd-iso-to-pxeboot ovirt-node-iso-2.4.0-1.1.fc17.iso You now have a ./tftpboot folder. Put files "tftpboot/vmlinuz0" and "tftpboot/initrd0.img" somewhere publicly available via HTTP for example. Don't forget to unmount iso/ folder and delete unused files ;) Open file tftpboot/pxelinux.cfg/default and copy all flags in APPEND line, and append it to 'kernel' line in pxe output. This is an example of what needs to be outputed by ipxe script : ----[ start ipxe script ]--- #!ipxe kernel http://path/to/vmlinuz0 rootflags=loop initrd=initrd0.img root=live:/ovirt-node-iso-2.4.0-1.1.fc17.iso rootfstype=auto ro liveimg nomodeset check rootflags=ro crashkernel=512M-2G:64M,2G-:128M elevator=deadline install quiet rd_NO_LVM rd.luks=0 rd.md=0 rd.dm=0 initrd http://path/to/initrd0.img boot ----[ end ipxe script ]--- Now power on your server and boot on iPXE : iso file is entirely loaded through the network. You now have to follow install script, or modify kernel line to add custom parameters. Olivier