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Re: UEFI-PXE boot to grub2 with BIOS configured VLAN tagging?

From: Christian Rohmann
Subject: Re: UEFI-PXE boot to grub2 with BIOS configured VLAN tagging?
Date: Wed, 11 Jan 2017 12:30:05 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 01/09/17 11:55, Andrei Borzenkov wrote:
The question is not how to configure VLAN, but how to detect, which
VLAN was used to bootstrap us. grub patches I mentioned simply
explicitly send tagged VLAN packets over base interface, so they
should work on every platform. Revisiting these patches, they do not
add user interface (commands) to configure VLAN interfaces though.

So there are two "issues" here:

1. The lack of transporting the information about a VLAN tag being used to bootstrap (UEFI-PXI boot to Grub2) into grub itself. As I understand such variables are usually available with the "net_pxe_" prefix?

2. User interface to even manually do anything regarding vlans. This would at least enable some sort of "hard coding" a VLAN and continue to boot even without the dynamic info about the used VLAN from issue 1.

As this scenario is not uncommon, think hypervisor host with just one interface which is a VLAN trunk, how should I go about filing issues for this?



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