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Re: Support for setting ksdevice to the interface used for PXE



On Fri, 2005-08-12 at 13:56 +0100, Alex Kiernan wrote:
> I've been trying to sort out our kickstart infrastructure and hit one
> box I just could get to co-operate without external intervention - it
> has three NICs, the onboard ones start at eth1 (which is the one I
> need it to use), but eth2 also has a link (which is why ksdevice=link
> didn't help).

Yeah, that's the hard one...

> So instead I implemented `ksdevice=bootif' which when used with
> `IPAPPEND 2' in your pxelinux.cfg pulls the BOOTIF variable off the
> command line and uses the mac PXE booted the machine from as the
> interface for ksdevice (which exactly matches the behaviour I want).

Aha, yet another pxelinux option that helps that people don't know
about :-)  Seems like a reasonable enough way to do things. 

> Not sure if you prefer such things in bugzilla or mail.

The list is good for discussion, bugzilla is good for not losing them.
Therefore, best of all is both.  But either really works.

Just a question or two about the patch inline...

> +       } else if (!strncmp(argv[i], "BOOTIF=", 7)) {
> +           /* +10 so that we skip over the leading 01- */
> +            loaderData->bootIf = strdup(argv[i] + 10);
> +            loaderData->bootIf_set = 1;

Where does the -01 come from?  I don't see anything obvious in the
pxelinux source that's making me understand where it comes from and I'd
rather have an idea of that instead of just blindly skipping.

> @@ -1005,11 +1014,10 @@
>                  foundDev = 1;
>              } else {
>                  /* maybe it's a mac address */
> -                char * mac1, * mac2;
> -                mac1 = sanitizeMacAddr(loaderData->netDev);
> +                char * mac2;

Just for cleanup's sake, I wouldn't leave this as mac2.  Maybe
devmacaddr?

Otherwise, looks good.

Thanks!

Jeremy


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