#! /bin/bash
+# modified from upstream fai example
error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
-
newnicnames() {
# determine predictable network names only for stretch and above
break
fi
done
+ # This condition is only needed because the nfsroot I use
+ # is based on Jessie, which has an old udev which can't
+ # figure out the persistent interface name used in stretch.
+ if ifclass VM; then NIC1=ens3; return; fi
if [[ ! $name ]]; then
echo "$0: error: could not find systemd predictable network name. Using $NIC1."
fi
CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
- cat > $target/etc/network/interfaces <<-EOF
+ if ifclass VM; then
+ # note, this condition would apply to the elif below too,
+ # but I don't specify a static ip in fai, so not bothering
+ cat > $target/etc/network/interfaces <<-EOF
# generated by FAI
auto lo $NIC1
iface lo inet loopback
iface $NIC1 inet dhcp
EOF
+ else
+ cat > $target/etc/network/interfaces <<-EOF
+ # generated by FAI
+ auto lo br0
+ iface lo inet loopback
+ iface $NIC1 inet manual
+ # make a bridge by default so we can have bridged vms.
+ # Some example I read had stp on, but i don't need stp,
+ # and it causes a vm to fail pxe boot, presumably unless
+ # you add some delay.
+ # http://wiki.libvirt.org/page/PXE_boot_%28or_dhcp%29_on_guest_failed
+ iface br0 inet dhcp
+ bridge_ports $NIC1
+ bridge_stp off
+ bridge_maxwait 0
+EOF
+ fi
elif [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
- [ -n "$CIDR" ] && cat > $target/etc/network/interfaces <<-EOF
+ [ -n "$CIDR" ] && cat > $target/etc/network/interfaces <<-EOF
# generated by FAI
auto lo $NIC1
iface lo inet loopback