PXE boot of guest not working anymore (since 5.0)

[ydegauquier]

Hi,
In installed from scratch my server with Proxmox 5.0, in 4.4 I was able to PXEboot my guest.
Since I'm now in 5.0 it does not work anymore.
I had also problem to configure the OVS (my config from 4.4 was not working anymore :-( ).
I can see some other users having network problems.
Anyone have some idea?
Thanks

 

[ydegauquier]

Doing some Wireshark debug, I discovered that DHCP request are 'Malformed packet' so DHCP is not seeing "option user-class" correctly (should be iPXE) so it did not give the correct info to netboot.

 

[gregw]

For the record, I'm also dealing with my guests not being able to pxe boot, using iPXE.

 

[manu]

could you provide a trace of the client DHCP request, as seen from the DHCP server log , in Pve 4.4 and Pve 5.0

 

[gregw]

Hi Manu,
If you are replying to my comment, I was able to get this sorted out. Missing option in DHCP for this particular scope.

thanks,
-g