The Mimic Xen host

The Mimic Xen host runs on a Compulab fit-PC IPC2 i5. After performing a minimal Fedora install on the computer, complete the following steps:

1. Install Xen and the network bridge utilities: yum install xen xen-hypervisor grub2-efi-modules bridge-utils.
2. Install a public SSH key and deactivate password-based SSH logins.
3. Set the hostname by editing /etc/hostname.
4. Configure a Xen network bridge device for each network interface on Mimic; for example /etc/sysconfig/network-scripts/ifcfg-xenbr0:

   DEVICE=xenbr0
   TYPE=Bridge
   ONBOOT=yes
   BOOTPROTO=none
   NM_CONTROLLED=no
   DELAY=0
   

   The interface that the host uses might require the configuration of an IP address or DHCP.
5. Configure each network interface on Mimic; for example /etc/sysconfig/network-scripts/ifcfg-enp2s0 (replace XX:XX:XX:XX:XX:XX and ifname):

   HWADDR=XX:XX:XX:XX:XX:XX
   TYPE=Ethernet
   BOOTPROTO=none
   DEFROUTE=yes
   PEERDNS=yes
   PEERROUTES=yes
   IPV4_FAILURE_FATAL=no
   IPV6INIT=yes
   IPV6_AUTOCONF=yes
   IPV6_DEFROUTE=yes
   IPV6_PEERDNS=yes
   IPV6_PEERROUTES=yes
   IPV6_FAILURE_FATAL=no
   NAME=ifname
   ONBOOT=yes
   NM_CONTROLLED=no
   BRIDGE=xenbr0
   

6. Place Xen guest configurations in /etc/xen, create links to /etc/xen/auto, and place guest disk images in /var/lib/xen/images. Here is an example guest configuration which boots an OpenWrt installation (replace guest and xx:xx:xx:xx:xx:xx):

   name    = "guest"
   memory  =  1024
   vcpus   =  1
   builder = "hvm"
   vif     = [ "model=e1000,script=vif-bridge,bridge=xenbr1,mac=xx:xx:xx:xx:xx:xx" ]
   disk    = [ 
     "tap2:tapdisk:aio:/var/lib/xen/images/guest-openwrt-15.05.1-x86-64-combined-ext4.img,xvda,w",
     "tap2:qcow:/var/lib/xen/images/guest-data.qcow,xvdb,w"
             ]
   serial  = "pty"
   

7. Ensure the Xen hypervisor is the default boot selection:

   grub2-set-default "Fedora, with Xen hypervisor"
   grub2-mkconfig > /boot/efi/EFI/fedora/grub.cfg