Hello Etienne I cannot find any info on how to extract this information from the current system.
How would I go about doing that ? Kind regards Henti On Tue, 13 Aug 2024 at 17:56, Etienne Champetier < champetier.etie...@gmail.com> wrote: > Hello Henti, > > Le mar. 13 août 2024 à 12:16, Henti Smith <he...@gaydonsmith.co.uk> a > écrit : > > > > Good day everybody. > > > > I've searched high and low and cannot seem to find an answer for what > I'm trying to do. The most relevant I found was this [1] thread in 2020, > but only because I'm using a script to change the contents of my .link > files during boot, which is not working constantly. > > > > Some things to note: > > 1. The hardware is sample hardware so Mac addresses are 00:00:00:00:00. > > 2. The hardware has an external hot-swap PCId port that takes a board > for VGA out. > > 3. We're attempting to configure two interfaces. > > > > The problem is when the board is attached the PCI numbering of the two > interfaces change. With the board attached, it's 5 and 6, without it 4 and > 5. > > > > Normally this would not be a problem, since you can Match on mac > address, but in this case, both have the same mac address of 00:00:00:00:00. > > > > My attempt to fix this was to create a script [2] that enumerated the > PCI ports for the hardware manufacturer and use that information to update > the link files [2] before systemd-networkd starts, but this does not work > constantly. > > > > Are there any other recommendations to resolve this situation or if my > approach is the only real way to do this, how can I ensure my script is > executed before systemd uses the link files to apply the interface > configuration ? > > Does the platform provide ACPI _SUN info by any chance ? > https://github.com/systemd/systemd/pull/33682 > > Best > Etienne > > > > > [1] > https://lists.freedesktop.org/archives/systemd-devel/2020-June/044784.html > > [2] https://paste.mozilla.org/jgcCyo9A > > [3] https://paste.mozilla.org/zXQYpXpd > > > > Any guidance would be most welcome. > > > > Kind regards > > Henti Smith >
