Slow PXE boot

[Michio Honda]

Hi,

I had a similar problem before, and the solution was the use of pxeboot
file taken from FreeBSD 10 as suggested by Hiroki.

Cheers,
- Michio

On Mon, Feb 24, 2020 at 1:48 PM Mark Saad <nonesuch at longcount.org> wrote:

> Domagoj
>    I regularly boot 11.3-Stable and 12.1-Stable amd64 on servers with
> 64gb, 128gb , and occasional more . I do t have that issue . Can you take a
> peak at the switch your boxes are attached to ; It sounds like a device is
> running at 100mb 1/2 duplex . I remember the realtec nics doing this when
> set to auto .
>
> ---
> Mark Saad | nonesuch at longcount.org
>
> > On Feb 23, 2020, at 9:23 PM, Domagoj Smolčić <rank1seeker at gmail.com>
> wrote:
> >
> > Yo Crew!
> >
> > During PXE boot, from server (11.3-RELEASE-p5 i386) with 1 GB RAM,
> client with:
> >    4 GB RAM booted kernel in  ~2 min
> >    8 GB RAM booted kernel in ~20 min (at least)
> > So all below is tested with 2 different clients, each with NIC of
> different manufacturer (Realtec & Intel)
> >
> > I've read on forums that if client has much, much more RAM than server,
> this happens.
> > Suggestion was to to set loader(8) tunable hw.memtest.tests to 0, so
> client would skip RAM test.
> >
> > PXE boot is served to clients from /PXE, so ...
> > Setting hw.memtest.tests="0" in /PXE/boot/loader.conf, yielded no
> results!
> >
> > By the way, for some reason, hw.memtest.tests tunable DOESN'T exist in
> man pages!
> > I had to look in source code to confirm it still exists.
> >
> >
> > Next, I've tried:
> > # echo 'nfs.read_size="16384"' > /PXE/boot/loader.conf
> >    Changing value to ANY value other than default 1024, completely halts
> client's kernel loading at 'Loading kernel...'!
> >
> >
> > Lastly, I've tried tactic used with UFS's stage 2 /boot/boot, to skip
> stage 3 loader completely and to directly load kernel instead.
> > So in dhcpd.conf, I've replaced:
> >    filename "boot/pxeboot";
> > with:
> >    filename "boot/kernel/kernel";
> >
> > Result:
> >    Attempt to pull GENERIC kernel directly, resulted in: "NBP is too big
> to fit in free base memory"
> > Maybe I should try to compile custom minimal kernel 'ident PXE' ...
> > It is unbelievable how many problems do I have ...
> >
> >
> >
> > Domagoj Smolčić
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