Slow PXE boot

Bjoern A. Zeeb bzeeb-lists at lists.zabbadoz.net
Tue Feb 25 21:02:16 UTC 2020


On 25 Feb 2020, at 20:57, Hiroki Sato wrote:

Hi,

> Michio Honda <micchie.gml at gmail.com> wrote
>   in 
> <CA+Sc9E0NNi8ViwXCn-Hif2_RQOnu11RLEMRUT2kOAaouLNySvQ at mail.gmail.com>:
>
> mi> Hi,
> mi>
> mi> I had a similar problem before, and the solution was the use of 
> pxeboot
> mi> file taken from FreeBSD 10 as suggested by Hiroki.
>
>  I could not reproduce this by using my boxes after all, but replacing
>  pxeboot with the older one was useful to gain the normal speed at
>  that time probably because of difference between new (11 or later)
>  loader's nfs client and the old one.  It was a problem sending a lot
>  of duplicated packets for some reason, not just a matter of the
>  buffer size.  And the server side was Linux.
>
>  Have anyone else also experienced this kind of very slow PXE booting?
>  It may be specific to using a Linux NFS server.

I see it on zoo all day long for ages.  I’ll go back and try an old 
pxeboot; if that really speeds things up massively I might even be 
willing to debug this a bit more.

/bz


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