I'm a bit suspicious since I cannot find relevant recent information on this.
I am wanting to boot a diskless XenServer version 6.2 (the server... not the installer). I have an Intel Pro 1000 ET NIC that supports iSCSI. I am able to intall XenServe 6.2 from CDROM onto an iSCSI device using this info:
On reboot the system will start to boot and then eventually hang. It appears the iSCSI interface gets renamed which causes it to drop out (that is my understanding).
My suspicion comes from the number of people wanting to do this but there being no (easily findable) updates on the item since 2012. My posts to the alternate forums have never been approved.
XenServer 6.2 is supposed to be open source. Does anybody have updated information on how to boot XenServer Diskless using an Intel iSCSI enabled ethernet interface?