Slow PXE boot

[Bjoern A. Zeeb]

On 25 Feb 2020, at 21:02, Bjoern A. Zeeb wrote:

> 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.

I found a pxeboot from FreeBSD 7 and while it did not entirely work the 
kernel was loaded in seconds rather than minutes (felt).

I guess it’s time to dig into the changes from back then..

/bz