> Date: Wed, 15 May 2019 21:21:27 -0400
> From: Gene Heskett <[email protected]>
> To: [email protected]
> Subject: Re: [Emc-developers] using buildbot on the pi
> Message-ID: <[email protected]>
> Content-Type: Text/Plain;  charset="iso-8859-1"
> 
> On Wednesday 15 May 2019 11:25:50 am Alan Condit wrote:
> 
>> Gene,
>> 
>> I would suggest putting an SSD on one of your Rock64 boards USB3 port.
>> It will build at least 4 to 6 times faster than the USB2 port on the
>> Rpi 3b+. Just install stretch or what ever your are using on the pi on
>> the Rock64 and build away. You can build the debs and then you should
>> be able to install the debs on the pi.
>> 
>> Alan
> However, how do I build for armhf on an arm64?

I don’t know. I switched to arm64 and build for it. 

I was worried about the latency until I talked to Peter Wallace. Since the 
latency mainly runs about 3-13 us occasional bumps to 50us shouldn’t hurt a 100 
us thread (because, as I understand it, Peter has implemented a PLL to keep 
things in sync). However, don’t listen to me, talk to Peter or maybe Peter will 
chime in a clarify for all of us.

I bought a 7i76e to run off the RockPro64’s gigabit ethernet (doesn’t run off 
the USB). I don’t know how tight the timing is on your SPI stuff.

> Got question on Rock64 since they came with almost zero docs, I note 
> there are 3 std sized usb ports, two have white plastic inserts, while 
> the single stack port adjacent to the pair has a robins egg blue plastic 
> insert.  Does this means it is the usb-3 port?
> 

Yes.

> 
> Thanks Alan.  And networking has failed AGAIN. I'll go try a full 
> powerdown for 30 seconds. The armbian stretch is so ticklish that if the 
> network cable isn't plugged in when ts booted, it will never find it no 
> matter how many times you hit the reset/restart button.
> 
> Can you show me a WORKING /e/n/i.d/eth0 file for static network that 
> actually works? From a hot reboot or /etc/init.d networking restart?

Not a clue. I haven’t had that problem on stretch.

> 
> I can't query for the failure because that man page for ip might as well 
> be written in swahili. Not an example in a trainload of copies of that 
> worthless pile of gibberish pretending to be English.
> 
> Anyway, networking is networked.  Its been a while since it was updated, 
> so lets see if it will.
> 
> Its been in a box for at least 3 weeks, but:
> sudo apt update:
> Reading package lists... Done
> E: The repository 'http://apt.armbian.com stretch Release' does no longer 
> have a Release file.

If you insist on staying 32bit, look in here:
https://apt.armbian.com/dists/stretch/main/binary-armhf/ 
<https://apt.armbian.com/dists/stretch/main/binary-armhf/>

Try using (just a WAG you may have to play with it):
https://apt.armbian.com/dists/ <https://apt.armbian.com/dists/> stretch Release

> N: Updating from such a repository can't be done securely, and is 
> therefore disabled by default.
> N: See apt-secure(8) manpage for repository creation and user 
> configuration details.
> 
> So armbian stretch (from http://cdn-fastly.deb.debian.org/debian 
> stretch-updates/main armhf Packages) is out of date and can no longer be 
> updated: My thoughts aren't printable. When did that happen?
> 
> I may as well upgrade to beta, something I've never done before to an 
> existing system, so how is this done?
> 
> Thanks Alan.
> 
> Cheers, Gene Heskett
> -- 
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>


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