Shipped with xCAT 2.12, a new command name 'getadapter' can be used to collect nics information from the compute node before the osimage.
Thanks
Best Regards
----------------------------------------------------------------------
Wang Xiaopeng (王晓朋)
IBM China System Technology Laboratory
Tel: 86-10-82453455
Email: [email protected]
Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District Beijing P.R.China 100193
----- Original message -----
From: David D Johnson <[email protected]>
To: xCAT Users Mailing list <[email protected]>
Cc:
Subject: Re: [xcat-user] discovering interface names dynamically
Date: Fri, Jul 1, 2016 2:33 AM
A simple place to start would be “ls /sys/class/net”… after that heuristics to eliminate “lo” and “ib*”,
use ethtool to see which of the rest has link up, and choose the one with the lowest number that is lit up.
— ddj
> On Jun 30, 2016, at 1:17 PM, Andrew Loftus <[email protected]> wrote:
>
> Does anyone have any experience or ideas how to acquire (ethernet) interface names dynamically?
>
> For instance, in setting up secondary networks, entries in the "nics" table require both the interface name and associated network information. However, these interface names aren't known before the OS is installed (unless one node has already been installed and the interface names checked manually). Furthermore, the interface names change based on a combination of OS version, hardware model, and install type combination. So it's not very robust.
>
> My thought is to setup secondary networks using a postbootscript. I'm looking for ideas to scan each ethernet interfaces and discover the network information to setup the secondary networks using that information.
>
> Cheers,
> --Andy
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