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by Chris.Rowland
Wed Mar 28, 2012 11:16 am
Forum: Debian
Topic: Debian ARM on Raspberry Pi
Replies: 135
Views: 80651

Re: Debian ARM on Raspberry Pi

<t>I'm having a problem with the root password both using the GUI and using the su command.<br/> <br/> In both cases I get a password prompt but nothing I have tried works.  It gives the authentication failure message.  I thought the default root password was suse.<br/> <br/> This is using the debia...
by Chris.Rowland
Wed Mar 28, 2012 11:07 am
Forum: Other projects
Topic: The MagPi - A new online Pi magazine looking for articles
Replies: 7
Views: 3599

Re: The MagPi - A new online Pi magazine looking for articles

<t>One thing I think would be useful for an early edition would be some guides on getting the Pi distributions going using an emulator shuch as qemu. I'm thinking particularly for people using Windows who've never used Linux before.<br/> <br/> Some topics would be:<br/> <br/> <br/> A step by step in...
by Chris.Rowland
Tue Mar 27, 2012 2:10 pm
Forum: Pidora / Fedora
Topic: Fedora ARM on Raspberry Pi
Replies: 266
Views: 130115

Re: Fedora ARM on Raspberry Pi

The other problem I saw was that the GUI didn't seem to get any keyboard input.
by Chris.Rowland
Tue Mar 27, 2012 12:57 pm
Forum: Off topic discussion
Topic: Ordered something else to fill the time
Replies: 65
Views: 17426

Re: Ordered something else to fill the time

I'm usuing QEMU with various Pi card images, mostly Debian.

This gives me the opportunity to learn a lot about Linux and in particular get used to the Linux way.
by Chris.Rowland
Tue Mar 27, 2012 10:16 am
Forum: Off topic discussion
Topic: Questions for an Embedded Software Engineer please...
Replies: 6
Views: 1421

Re: Questions for an Embedded Software Engineer please...

<t>I thinkthat what developers of all sorts want is a definition of the problem that needs to be solved but what we usually get is essentially a definition of a solution.<br/> <br/> Often the person defining the solution doesn't know what is possible or what is easy or difficult.  If the requirement...
by Chris.Rowland
Mon Mar 26, 2012 11:41 am
Forum: Staffroom, classroom and projects
Topic: Why Pi when you can just run Linux?
Replies: 98
Views: 24602

Re: Why Pi when you can just run Linux?

<t>One comment I got from a school technician was that most of the time the PCs weren't working because the kids* had broken them and it took for ever to get them re-imaged.<br/> <br/> The Pi could prove to be more reliable because it's easier to generate new SD images.<br/> <br/> *IIRC he called th...
by Chris.Rowland
Mon Mar 26, 2012 11:24 am
Forum: General discussion
Topic: Extending Partitions in QEMU
Replies: 3
Views: 4157

Re: Extending Partitions in QEMU

<t>And, of course, just after posting it occurred to me what to do:<br/> <br/> <br/> Make a copy of the image file, it's called debian.img below.<br/> resize the copy using the qemu-img resize command<br/> run qemu with the copy as an additional drive, the command line I used was:<br/> qemu-system-a...
by Chris.Rowland
Mon Mar 26, 2012 10:13 am
Forum: General discussion
Topic: Extending Partitions in QEMU
Replies: 3
Views: 4157

Re: Extending Partitions in QEMU

<t>Hi everyone,<br/> <br/> I've been trying to get a larger"disk" using the Debian distribution and QEMU on a Windows 7 system. This is where I've got so far:<br/> <br/> >qemu-img resize debian.img +1024M<br/> <br/> This gives me a disk image that's got an extra gB of space.<br/> <br/> Boot into thi...
by Chris.Rowland
Mon Mar 26, 2012 6:12 am
Forum: Other projects
Topic: Mass SD Card Replicator
Replies: 17
Views: 6665

Re: Mass SD Card Replicator

Why not just get a Multiple SD card replicator? A device that will take a master SD card and copy it to N other cards.  These devices exist and can be bought quite easily. A school that needs to do this a lot could easily justify getting this.
by Chris.Rowland
Fri Mar 23, 2012 8:51 am
Forum: General discussion
Topic: Yet another QEMU thread (and lack of success)
Replies: 21
Views: 4698

Re: Yet another QEMU thread (and lack of success)

<t>Yes, stderr and stdout are sent to txt files.<br/> <br/> I've got the resolution change working in the same way.<br/> <br/> The TAP network also works for me on a Vista 32 bit desktop, install the openvpn tap adaptor, rename it and bridge it to the real ethernet port.  No need to mess with settin...
by Chris.Rowland
Thu Mar 22, 2012 10:02 pm
Forum: Off topic discussion
Topic: Arrival Dates?
Replies: 34
Views: 6123

Re: Arrival Dates?

<t>alvin said: <br/> <br/> <br/> i ordered during launch day, Feb 29 and i didn't get any email from farnell NZ when the Pi is arriving.  not one email.<br/> <br/> <br/> If you've had nothing from them then it's worth contacting them and checking that they think you have ordered.  I've had several m...
by Chris.Rowland
Thu Mar 22, 2012 10:06 am
Forum: General discussion
Topic: Synergy
Replies: 16
Views: 15972

Re: Synergy

<t>I did a product at work a few years ago that detected the edge of the screen and sent a message to a KVM switching box to switch the KB and mouse. This was before Synergy.<br/> <br/> Synergy is much better.<br/> <br/> Incidentally, with Synergy QEMU doesn't recognise the mouse on the other PC alt...
by Chris.Rowland
Thu Mar 22, 2012 8:55 am
Forum: Automation, sensing and robotics
Topic: Raspi-powered seismometer/seismograph
Replies: 63
Views: 43316

Re: Raspi-powered seismometer/seismograph

<t>There are small three axis accelerometers that can connect using the I2C bus that's available on the GPIO port. There will be a library to communicate with it because this will be a popular way to connect sensors.<br/> <br/> But will the sensitivity of a small accelerometer be good enough? It wil...
by Chris.Rowland
Wed Mar 21, 2012 9:25 am
Forum: Other projects
Topic: Raspberry Pi App Store?
Replies: 23
Views: 5359

Re: Raspberry Pi App Store?

<t>AFAIK there's no reason why commercial apps could not be sold for the Pi.  I can imagine games sold on a pre programmed SD card.  Plug it in, turn it on and the game runs.<br/> <br/> They would be available in W H Smith, just like games cassettes for the Spectrum and BBC Micro were available - ne...
by Chris.Rowland
Tue Mar 20, 2012 2:04 pm
Forum: General discussion
Topic: Potential power source
Replies: 83
Views: 15285

Re: Potential power source

<t>I use an old PC power supply to drive things and it seems to work well.  You may need to short a couple of connections to get it to turn on and some people say that the 5V line has to draw a significant amount of current before it regulates.<br/> <br/> I think you need some electronic experience ...
by Chris.Rowland
Tue Mar 20, 2012 1:14 pm
Forum: Off topic discussion
Topic: Suggestions for learning electronics/robotics?
Replies: 39
Views: 6064

Re: Suggestions for learning electronics/robotics?

<t>I've used PicAxe and Arduino; my recommendation would be to start with a PicAxe for experimenting with electronics hardware.  This is because they are really cheap - less than £2 for the 8 and 14 pin versions - and this means that when you fry one it doesn't cost much. For the same reason get an ...
by Chris.Rowland
Sat Mar 17, 2012 11:33 am
Forum: Off topic discussion
Topic: $50 Cortex A9 HDMI stick
Replies: 3
Views: 1389

Re: $50 Cortex A9 HDMI stick

<t>I'll believe it when - and if - it happens.  From what I heard the guy doing the video said next month but I think the girl he was talking to muttered something about six months but didn't like to dampen his enthusiasm.<br/> <br/> If it's $50 in 1000s then it's going to be closer to $75 in small ...
by Chris.Rowland
Fri Mar 16, 2012 10:58 pm
Forum: Off topic discussion
Topic: PoC code uses super-critical Windows bug to crash PCs
Replies: 11
Views: 2484

Re: PoC code uses super-critical Windows bug to crash PCs

<t>Every single distribution I've tried has forced me into the terminal far too soon and often - Ubuntu, Debian, Fedora, Puppy.<br/> <br/> It may be possible to use a pre-configured system without using a terminal but I don't think it's possible to set one up.  If you ask for help you get told about...
by Chris.Rowland
Fri Mar 16, 2012 10:09 pm
Forum: Off topic discussion
Topic: Even easier GUI app design
Replies: 12
Views: 2980

Re: Even easier GUI app design

<t>I wouldn't say the VS implementation is exactly the same as ruwin has suggested but it seems to solve the same problem - allow the developer to design the GUI without writing code.<br/> <br/> The express versions of C#and VB are available free for the download so it's easy to try it and get ideas...
by Chris.Rowland
Fri Mar 16, 2012 9:53 pm
Forum: Pidora / Fedora
Topic: Fedora ARM on Raspberry Pi
Replies: 266
Views: 130115

Re: Fedora ARM on Raspberry Pi

<t>800x600 is something I've solved with the Debian img using an xorg.conf file as described elsewhere.<br/> <br/> I've tried the TAP way to set up a network, it gives the impression it's working but there's no communication. Not sure how to progress.<br/> <br/> This is using W7 64 bits as a host sy...
by Chris.Rowland
Fri Mar 16, 2012 8:47 pm
Forum: Off topic discussion
Topic: Congratulations, First batch from Farnell
Replies: 14
Views: 3437

Re: Congratulations, First batch from Farnell

Hope you're wrong, we are going to get interminable "It isn't fair!!! I was there before him!!!!!" messages.

Suppose, to be realistic, we will get them anyway.
by Chris.Rowland
Fri Mar 16, 2012 8:40 pm
Forum: Off topic discussion
Topic: Even easier GUI app design
Replies: 12
Views: 2980

Re: Even easier GUI app design

<t>Aren't you describing Visual Studio?<br/> <br/> The GUI design is done by  dragging and dropping items onto the window, resizing and arranging them as appropriate.<br/> <br/> You can set the item names and other properties - or leave the auto generated ones. I rename the ones I use but tend to le...
by Chris.Rowland
Fri Mar 16, 2012 8:25 pm
Forum: Off topic discussion
Topic: PoC code uses super-critical Windows bug to crash PCs
Replies: 11
Views: 2484

Re: PoC code uses super-critical Windows bug to crash PCs

<t>One of the things that really puts me off Linux is the way it's groupies spend so much time slagging off Windows.<br/> <br/> If they spent a fraction of the time working on making Linux usable with a decent UI that didn't require vast number of arcane command lines they would have an OS that was ...
by Chris.Rowland
Fri Mar 16, 2012 7:48 pm
Forum: Off topic discussion
Topic: "ICT causes more health problems than it helps to overcome." (Discuss this statement.)
Replies: 20
Views: 2862

Re: "ICT causes more health problems than it helps to overcome." (Discuss this statement.)

<t>JamesH said: <br/> <br/> <br/> riFFraFF said: <br/> <br/> <br/> I'm sorry... the only thing that comes to me is a blank stare and WTF?<br/> <br/> Like when you go to a job interview and the only question you're asked is "if you were a bird... what kind of bird would you be?"<br/> <br/> <br/> Vult...
by Chris.Rowland
Fri Mar 16, 2012 7:33 pm
Forum: General discussion
Topic: Would Farnell or RS make the ALPHA board available?
Replies: 21
Views: 3879

Re: Would Farnell or RS make the ALPHA board available?

<t>Could a board connected through the GPIO connector have switch mode power supplies on it?  The board would then be powered through this with no connection to the micro USB for power.  The original linear regulators could stay in place but because they aren't powered are doing nothing.  The snag I...

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