[Cerowrt-devel] update on that nuc I was fighting with

[Cerowrt-devel] update on that nuc I was fighting with

[Dave Taht]

Hoo, boy, did I have issues. I finally got around to trying to get it
up and running linux.

For reference, this was the:

- Jetway NU93-2930 NUC Form Factor Intel Celeron N2930 SoC Bay Trail 2
Intel LAN, 2 Display, 2 x HDMI, 1 x SATA2 port, full-size mSATA,
half-size mini-PCIE, 1 External COM, 3xUSB2, 1xUSB3, Audio, 9V-24V
DC-in (size 4" x 4" x 1.5").

which I got from amazon:

http://www.amazon.com/Jetway-JC320U93W-2930-B-Intel-Celeron-Fanless/dp/B00SHYW6US?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00

This came with an intel wifi card that I pulled out and tried to
replace with an ath10k.

1) Sometimes the hdmi wouldn't work (it also did not work on either of
my admittedly older monitors really at all. So I bought a new monitor
to get it up, and maybe I got lucky, but that new monitor "just
worked".

Well, it turns out there is a BIOS fix here, which I have not installed yet.

http://www.jetwaycomputer.com/NU93.html

2) No linux OS I tried would write a workable EFI boot area for it
until I tried ubuntu 16.04 beta last night. There is no way to turn
EFI off, either.

3) I'd tried to use a msata + raid to sata adaptor.

this is usually not recognized on a soft boot, and the thing drops to
an EFI shell

the raid component (mirroring) would work sometimes, and other times
it would fall back on
the "fast mode" which joins the two cards together serially. Naturally
this doesn't work either.

I am going to ditch this idea entirely as a well intentioned
experiment for making something more reliable that actually made it
more complex with more failure modes.

I'm going to skip trying one of these, also.

http://www.amazon.com/Micro-Memory-Card-Adapter-Converter/dp/B017QXZGR0/ref=sr_1_2?s=electronics&ie=UTF8&qid=1460592608&sr=1-2&keywords=sd-card+raid

4) It has a full-length msata slot - and a half length pci-e slot.

Despite these sharing a connector type the big slot appears to be
msata only. There is no jumper or bios setting to change it to
something else.

I have had nucs that had the full length slot be mini-pcie capable
before, but not this one,
apparently.

...

Of these, this last appears the most damning - without a full length
mini-pcie slot, it's mostly not useful for my purposes. I DID need a
router/delay box, but I was hoping to also feed it the ath10k full
length card. Neither long form mini-pcie cards I tried in it worked.

BQL support works, at least. It's more than fast enough to forward at
a gigabit, and cake can shape to a gbit also. It gets pretty warm when
doing a big compile, but is otherwise silent.

So it is suitable as a non-wifi x86 based router so long as you are
willing to install a very recent linux os on it, and a half length
wifi card. And go msata

(Or perhaps pfsense has better EFI, I didn't try it, am not going to...)

Ah, well, off to review all the other recommendations on the list, I'd
really hoped to get this box up on the ath10k this past week. Also
somewhat tried was an intel galeio board...


-- 
Dave Täht
Let's go make home routers and wifi faster! With better software!
http://blog.cerowrt.org

Re: [Cerowrt-devel] update on that nuc I was fighting with

[Erkki Lintunen]

* Dave Taht <dave.taht@gmail.com> [2016-04-13 17:11:44 -0700]:

> Hoo, boy, did I have issues. I finally got around to trying to get it
> up and running linux.
> 
> For reference, this was the:
> 
> - Jetway NU93-2930 NUC Form Factor Intel Celeron N2930 SoC Bay Trail 2
...
> Well, it turns out there is a BIOS fix here, which I have not installed yet.

Matthew Garrett's blog-post might give peace of mind.
<https://mjg59.dreamwidth.org/41713.html> and especially in it's
comments are info about Intel chip microcode versions. 

One might only get microcode through Jetway and Jetway (at least I have
doubts) might be a vendor not giving much concern toward other OSs. E.g.
the comments in Garrett's blog say Windows AHCI driver handles
power-states ok, so the issues with Linux may not be a priority to
Jetway unless in volume made known to it.

Nice info for me also as I was about to upgrade an old Pentium box
running 24x7 to a Bay Trail platform, but have to put it on hold and
watch on this as the comments also reference to Intel's caution about
theirs chips long term reliability if the power-states aren't right.

- Erkki

Re: [Cerowrt-devel] update on that nuc I was fighting with

[Dave Taht]

On Wed, Apr 13, 2016 at 11:56 PM, Erkki Lintunen <erkki.lintunen@iki.fi> wrote:
> * Dave Taht <dave.taht@gmail.com> [2016-04-13 17:11:44 -0700]:
>
>> Hoo, boy, did I have issues. I finally got around to trying to get it
>> up and running linux.
>>
>> For reference, this was the:
>>
>> - Jetway NU93-2930 NUC Form Factor Intel Celeron N2930 SoC Bay Trail 2
> ...
>> Well, it turns out there is a BIOS fix here, which I have not installed yet.
>
> Matthew Garrett's blog-post might give peace of mind.
> <https://mjg59.dreamwidth.org/41713.html> and especially in it's
> comments are info about Intel chip microcode versions.

Sigh. Pain shared, reduced, Joy shared, increased.

Corollary:  With enough pain shared, fixes can be found.

This will not be the first time I stepped too far off the bleeding
edge, nor the last.

I am still in search of *something* that will let me install an ath10k
and follow along on the wonderful results michal is getting on
fq_codel for wifi on that chipset.

https://lists.bufferbloat.net/pipermail/codel/2016-April/002165.html

I was tempted  to swap out for the ivy bridge box and tear apart the
nuc that I use as my main desktop to do it, but with the heat thing
being a potential problem also, reluctant.

/me goes searching for another board

> One might only get microcode through Jetway and Jetway (at least I have
> doubts) might be a vendor not giving much concern toward other OSs. E.g.
> the comments in Garrett's blog say Windows AHCI driver handles
> power-states ok, so the issues with Linux may not be a priority to
> Jetway unless in volume made known to it.
>
> Nice info for me also as I was about to upgrade an old Pentium box
> running 24x7 to a Bay Trail platform, but have to put it on hold and
> watch on this as the comments also reference to Intel's caution about
> theirs chips long term reliability if the power-states aren't right.
>
> - Erkki
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel



-- 
Dave Täht
Let's go make home routers and wifi faster! With better software!
http://blog.cerowrt.org

Re: [Cerowrt-devel] update on that nuc I was fighting with

[Jonathan Morton]

> On 14 Apr, 2016, at 18:40, Dave Taht <dave.taht@gmail.com> wrote:
> 
> /me goes searching for another board

This looks really promising:

	http://anandtech.com/show/10244/compulab-fitletxa10lan-review-a-fanless-amd-ucff-pc-for-networking-applications

It looks as though you can (temporarily at least) replace the mini-PCIe card supporting three of the Ethernet ports with one of your choice, and still have one GigE port.

 - Jonathan Morton