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by johny
Thu Nov 02, 2017 12:58 am
Forum: Advanced users
Topic: How to U-Boot with FDT on a Pi 2?
Replies: 3
Views: 4516

Re: How to U-Boot with FDT on a Pi 2?

Hi Hvergelmir, Bit of a blast from the past here! :) Yes, you should certainly be able to put the address into u-boot.env and have that work. The reason I don't like doing so is because the environment is at higher risk of being corrupted/erased. I sleep much better if I know that the compiled-in va...
by johny
Wed May 06, 2015 3:10 am
Forum: General discussion
Topic: Made in PRC
Replies: 28
Views: 18035

Re: Made in PRC

May I suggest one of these instead then?

“Extraordinary claims require extraordinary evidence.” ― Carl Sagan.
by johny
Fri Apr 24, 2015 7:34 am
Forum: Advanced users
Topic: How to U-Boot with FDT on a Pi 2?
Replies: 3
Views: 4516

Re: How to U-Boot with FDT on a Pi 2?

Okay, I've finally gotten this to work the way I need it to. I can now boot a Raspberry Pi 2 B through U-Boot, where U-Boot decides which kernel and root partition to use. U-Boot uses the GPU-provided DTB and only updates the /chosen/bootargs entry. To get this to work I had to patch U-Boot's defaul...
by johny
Thu Apr 23, 2015 8:33 am
Forum: Advanced users
Topic: How to U-Boot with FDT on a Pi 2?
Replies: 3
Views: 4516

How to U-Boot with FDT on a Pi 2?

Hi all, I'm currently trying to add support for Pi 2 hardware to some of our existing projects here at $work, which all rely on U-Boot as the primary loader (post-GPU, that is). As such I'm been banging my head on my desk* all day trying to get this to work on a Pi 2. My issue, as far as I can tell,...
by johny
Thu Mar 26, 2015 1:15 am
Forum: General discussion
Topic: Pi 2 B more expensive than B/B+
Replies: 3
Views: 761

Re: Pi 2 B more expensive than B/B+

Thanks guys, sounds like it's just the currency fluctuations then, coupled with "hey, I'm not earning more money so I'm still spending more relatively speaking" feeling.
by johny
Thu Mar 26, 2015 12:24 am
Forum: General discussion
Topic: Pi 2 B more expensive than B/B+
Replies: 3
Views: 761

Pi 2 B more expensive than B/B+

I apologise if this is something that's been clarified already. I did do a search here but nothing relevant showed up. So, I was looking at getting a Pi 2 or two (or three) since hey, why spend the same amount of money on a B+ when I could get a 2 B! Except that down here in Australia apparently I c...
by johny
Wed Mar 04, 2015 5:33 am
Forum: Troubleshooting
Topic: [SOLVED] ssh -R binding to loopback, not wildcard
Replies: 5
Views: 978

Re: [SOLVED] ssh -R binding to loopback, not wildcard

Wouldn't have guessed that as the cause - glad you found it! :)
by johny
Wed Mar 04, 2015 5:12 am
Forum: Troubleshooting
Topic: [SOLVED] ssh -R binding to loopback, not wildcard
Replies: 5
Views: 978

Re: ssh -R binding to loopback, not wildcard

I've got

Code: Select all

GatewayPorts clientspecified
in my sshd_config, and using 0.0.0.0 as the bind address works fine:

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$ ssh -R 0.0.0.0:3180:localhost:9900 [email protected]
<login, motd...>
$ netstat -an|grep 3180
tcp        0      0 0.0.0.0:3180            0.0.0.0:*               LISTEN 
by johny
Wed Mar 04, 2015 4:30 am
Forum: Troubleshooting
Topic: [SOLVED] ssh -R binding to loopback, not wildcard
Replies: 5
Views: 978

Re: ssh -R binding to loopback, not wildcard

Try:

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ssh -R [b]0.0.0.0:[/b]3180:localhost:80 [email protected]_ip_address
by johny
Tue Feb 10, 2015 12:39 am
Forum: General discussion
Topic: Made in PRC
Replies: 28
Views: 18035

Re: Made in PRC

Thanks for satisfying our curiosity!
by johny
Mon Feb 09, 2015 12:17 am
Forum: General discussion
Topic: Made in PRC
Replies: 28
Views: 18035

Made in PRC

Since our first batch of Pi 2 B units arrived, we've been arguing debating pondering getting more and more curious over the text on the pcb which says "Made in PRC", rather than the usual "Made in UK". Based on all the information I've seen from the foundation, all the units are manufactured in the ...
by johny
Wed Jan 28, 2015 1:55 am
Forum: Raspbian
Topic: Rapsbian vulnerable to 'GHOST' exploit
Replies: 12
Views: 4708

Re: Rapsbian vulnerable to 'GHOST' exploit

I think you underestimate just how many raspberries are out there on the internet by now. I'm certainly hoping to upgrade glibc on the handful of Pis that I run, and to upgrade a number of in-field units at $work.
by johny
Wed Dec 17, 2014 10:32 am
Forum: Wanted
Topic: Wanted: Model A+ in Melbourne Australia by Dec 18
Replies: 3
Views: 1313

Re: Wanted: Model A+ in Melbourne Australia by Dec 18

Hah! Even if I could get that approved, with a ~22h travel time you still wouldn't make it :(

Thanks for the thought though!
by johny
Wed Dec 17, 2014 1:24 am
Forum: Wanted
Topic: Wanted: Model A+ in Melbourne Australia by Dec 18
Replies: 3
Views: 1313

Wanted: Model A+ in Melbourne Australia by Dec 18

Hi guys, Due to a snafu with our ordering, and Element 14 now being out of A+ stock (we watched the last one slip through our fingers!), we're left in a sad place where we'd really like at least one model A+ for a demo, and having zero. RS has stock but takes 4-5 days, which is too late for us. I do...
by johny
Tue Aug 26, 2014 9:49 am
Forum: Automation, sensing and robotics
Topic: Wire-to-wire connector recommendations?
Replies: 15
Views: 3357

Re: Wire-to-wire connector recommendations?

I'm not sold on the idea of needing a bulky joiner (these will go inside the wall cavity), but it's no doubt a lot easier to crimp than individual wires. The other thing that bugs me is that it's not obvious how many active circuits are in a plug, but maybe I'm just being too darn picky! :D Thanks f...
by johny
Tue Aug 26, 2014 7:48 am
Forum: Automation, sensing and robotics
Topic: Wire-to-wire connector recommendations?
Replies: 15
Views: 3357

Re: Wire-to-wire connector recommendations?

Ah, those Molex connectors look very promising for what I need! Now to see what they'd cost...

The terminal block idea is interesting, but I fear it would be a bit too bulky (and at 4mm2 I'd have a hard time with 24AWG I think).
by johny
Mon Aug 25, 2014 7:45 am
Forum: Automation, sensing and robotics
Topic: Wire-to-wire connector recommendations?
Replies: 15
Views: 3357

Re: Wire-to-wire connector recommendations?

Clarification - I'm after wire-to-wire connectors, not wire-to-pcb connectors. I'd have a whole lot more choice if it was wire-to-pcb for sure, but I'm not making up PCBs just to join some wires together! :)
by johny
Mon Aug 25, 2014 7:26 am
Forum: Automation, sensing and robotics
Topic: Wire-to-wire connector recommendations?
Replies: 15
Views: 3357

Re: Wire-to-wire connector recommendations?

I've only seen panel/keystone RJ11 sockets. Do you have a link for a free/hanging mount RJ11 socket?
by johny
Mon Aug 25, 2014 1:40 am
Forum: Automation, sensing and robotics
Topic: Wire-to-wire connector recommendations?
Replies: 15
Views: 3357

Wire-to-wire connector recommendations?

Hi all, I'm looking for some recommendations on wire-to-wire connectors, specifically: - 3-pin connectors. If available as 4+ pin as well, that's a bonus. - Crimp type for 22-24AWG. I'll be using existing wires in locations I can't easily solder. - Polarised connector housings, ideally. Putting 5V w...
by johny
Wed Jun 18, 2014 11:39 am
Forum: Troubleshooting
Topic: Unable to authenticate via ssh using RSA keys
Replies: 3
Views: 1594

Re: Unable to authenticate via ssh using RSA keys

You can try running ssh -v [email protected].add.re.ss This enables verbose logging of what exactly the SSH client is doing. You'll hopefully see something like this towards the bottom: debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying p...
by johny
Fri Jun 06, 2014 2:31 am
Forum: Troubleshooting
Topic: linux/videodev.h: No such file or directory
Replies: 9
Views: 11280

Re: linux/videodev.h: No such file or directory

Happy to have been of some help, even if it was only with Google-fu! :)
by johny
Fri Jun 06, 2014 1:20 am
Forum: Troubleshooting
Topic: linux/videodev.h: No such file or directory
Replies: 9
Views: 11280

Re: linux/videodev.h: No such file or directory

Yep, that part is looking good. Any chance you could post the full output from when you try to run 'make'? I've never used the mjpg-streamer stuff, so I'm just approaching it as a case of "it's software, and I know how to build software" :) I also found a post over here on how to get mjpg-streamer t...
by johny
Thu Jun 05, 2014 11:20 pm
Forum: Troubleshooting
Topic: linux/videodev.h: No such file or directory
Replies: 9
Views: 11280

Re: linux/videodev.h: No such file or directory

After you did those steps, did the file /usr/include/libv4l1-videodev.h actually exist?
If you run

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ls -l /usr/include/libv4l1-videodev.h /usr/include/linux/videodev.h
what's the output?
by johny
Thu Jun 05, 2014 12:56 pm
Forum: Troubleshooting
Topic: linux/videodev.h: No such file or directory
Replies: 9
Views: 11280

Re: linux/videodev.h: No such file or directory

According to this page, you need to:

Code: Select all

sudo apt-get install libv4l-dev
cd /usr/include/linux
sudo ln -s ../libv4l1-videodev.h videodev.h
After that you should be able to run the 'make' command again, from whatever directory you were running it before.
by johny
Tue Jun 03, 2014 11:54 am
Forum: Arch
Topic: SSH FAILS
Replies: 4
Views: 1414

Re: SSH FAILS

I don't have any brilliant ideas at this stage, sorry. If it was me in this situation I'd probably be pulling the SD card and looking through the login files in /etc for anything out of the ordinary.

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