DHCP timeout on reboot

[FreeMinded]

(2016-02-25 13:15)SebastianRoth Wrote:  At first I thought the "MAC reset" after dhcp (on reboot) might be causing the issue. But as I understand the code (still kind of a newbie!) this comes from iPXE closing the devices as DHCP failed. So I am wondering if there is a difference in the DHCP sequence.

Maybe try adding debug for DHCP as well to see is there is any difference...

Code:

... DEBUG=intel,dhcp ...

Hi Sebastian

Thanks for joining the thread! This thing is starting to bend my mind but I think I finally found some interesting facts.

The DHCP timeout does NOT appear when rebooting by using the iPXE command reboot. But when rebooting from Windows or Ubuntu. So something must be different, when reboot is invoked by iPXE.

Debug output DHCP successful
http://ibin.co/2YDoPoFOkJOS

Debug output DHCP timing out
http://ibin.co/2YDosDmWFdXD

I hope this helps to find a solution, fix or workaround