iSCSI root fails: open-iscsi tries to configure networking prior to network devices being detected

Testing on Quantal Final RC's

installing iso to iscsi root fails to boot, and is stuck in bootloader (busybox initramfs shell)

Last screen output is:

Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
ipconfig: no devices to configure
/scripts/local-top/iscsi: .: line 505: can't open '/run/net-*.conf'
done.
[ 2.260189] e1000: Intel(R) Pro/1000
[ 2.287678] Floppy drive(s): fd0 is 1.44M
[ 2.302014] FDC 0 is a post-1991 82077
[ 2.389848] eth0 NIC Link is Up 1000Mbps
Gave up waiting for root device. Common problems:
 - Boot args (cat /proc/cmdline)
  - Check rootdelay=
  - Check root=
 - Missing modules (cat /proc/modules)
ALERT! /dev/disk/by-uuid/bbc5a7be-...... does not exist.
Dropping to a shell!

Used to be, to work around this issue, I could just run /scripts/local-top/iscsi manually, since the nic seems to get setup AFTER the local-top scripts run, but that isn't working anymore, instead I get the below:

IP-Config: eth0 hardware address .......
IP-Config: eth0 complete (dhcp from 192.168.x.x):
  address: 192.168.x.x broadcast: 192.168.x.x netmask: 255.255.255.0
  gateway: 192.168.x.x dns0: 192.168.x.x dns1: 192.168.x.x
  domain: xxx
  rootserver: 192.168.x.x rootpath:
[ 168.204516] Loading iSCSI transport class v2.0-087.
[ 168.212114] iscsi: registered transport (tcp)
iscsistart: TargetName not set. Exiting iscsistart

iscsistart: TargetName not set. Exiting iscsistart

(initramfs)

I have also check /etc/iscsi.initramfs and /etc/initiatorname.iscsi and the settings in there are good.