[CentOS] Kickstart from tagged VLAN?

Fri Jul 2 12:33:45 UTC 2010
Les Mikesell <lesmikesell at gmail.com>

Finnur Örn Guðmundsson wrote:
>   On 2.7.2010 04:46, Scott Beardsley wrote:
>>>>>  From start to finish anaconda needs to pick up a dynamic address
>>>>> from vlan 100. After that the kickstart file specifies the static
>>>>> adress from vlan100 and it's address from the backup subnet.
>>>>> Anyone know if this is currently possible? If so any nod in the
>>>>> right direction would be appreciated
>>> I dunno how you'd get the BIOS to do a PXE boot off a vlan.
>> I remember running into this a while ago. I think most multi-layer
>> switches can have a default VLAN that untagged packets will go to. Check
>> the docs for your switch.
>> Scott
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> On Cisco switches it would be called "native vlan" if i remember correctly:
> One way of doing it (if using Cisco :):
> interface GigabitEthernet0/1
>   description nodeX
>   switchport trunk native vlan 100
>   switchport trunk allowed vlan 100,101
>   switchport mode trunk
>   spanning-tree portfast trunk
>   spanning-tree bpdufilter enable
> end

Doing it that way would force you to change all of your switches and hosts that 
know about vlan 100 at once.  You might also add native (untagged) vlan 1 to the 
existing tagged vlans - then you can set up a pxe-booting network on vlan 1 and 
once things are installed you can add the tagged vlan interfaces and optionally 
remove the IP address from the untagged (base eth device) interface.

   Les Mikesell
     lesmikesell at gmail.com