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 Forum index » Advanced Topics » Puppy Derivatives
Quirky Xerus 8.1.4 for Raspberry Pi2 and 3
Moderators: Flash, JohnMurga
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Sylvander

Joined: 15 Dec 2008
Posts: 4297
Location: West Lothian, Scotland, UK

PostPosted: Tue 28 Mar 2017, 07:41    Post subject:  

@Sage

1. "Insufficient power?"
Perhaps.
Remember, the RPi2 works just fine, except there is no power LED displaying.
I'm using a power unit [5-volt-DC, 1.3-amp] identical to the one for my wife's mobile phone [Nokia Lumia 610 methinks].
I see no obvious signs of inadequate power to the RPi2.
I have an 10-port multi-USB power hub somewhere [Trust 5-volt-DC, 2.0-amp].
RPi needed power supply
Is my Nokia 1.3A power unit ok?

2. "Incorrect USB connection/hub design?"
I very much doubt it.

3. "SD card not pushed home?"
I always make sure it's properly pushed home.
Got it wrong once [the mmc was in at the correct orifice, but angled toward the outer casing; might this have done irreversible damage?], and removed and re-inserted to make sure it was properly located and all the way home [the little ridge on the end of the mmc is located between the internal cover/hood and the outer edge].

4. "Try powering it from pins 4 & 6 on the GPIO with an independent old AT or ATX PSU..."
Eh, what? Confused
I wonder if I even know what that means.
I don't have any spare PSU's about.
Aren't they HUGE?
I fitted a replacement one once to an old PC.

5. "Disconnect your USB hub - only USB2/3 ones work and if you try to power them (not necessary with RPi2) you can get conflicts."
The hub [not yet used for RPi2] is USB-2.0 and 1.1.
Not sure what the Lumia power unit is [USB 2.0?]
See: Genuine Nokia AC_50X (1.3AMP) USB Mains Charger Wall Adapter


6. "There are plenty more possible issues including you've blown it, blown a fuse, bad cable, you-name-it."
I very much doubt all of these, except as in 3 above.
Everything is NEW, and appears to work OK [except no power LED display].
Looks like my son fitted it in an old case [doesn't look new]...
Might the case be obscuring the LED?

7. "please be sure to report back when you sort it so that it will help legions of others struggling ..."
Will do.
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Sage

Joined: 04 Oct 2005
Posts: 5302
Location: GB

PostPosted: Tue 28 Mar 2017, 14:03    Post subject:  

Quote:
4. "Try powering it from pins 4 & 6 on the GPIO with an independent old AT or ATX PSU..."
Eh, what? :?
I wonder if I even know what that means.
I don't have any spare PSU's about.
Aren't they HUGE?
I fitted a replacement one once to an old PC.


Along the back (front?!) of your board there is a row of 40 pins - for connecting a range of inputs and outputs, both (digital)signals and voltages. This is the General Purpose Input/Output bus (short for busbar). They run in pairs, odds down one lane, evens the other (outside) lane. Pins 2 & 4 are +5V, pin 6 is ground/earth/0V.
On old PSUs (and some new ones), the smallest power plug is to drive the Floppy Drive and has four sockets - red/black/black/yellow for +5V 0V 0V & +12V. If you remove (use a pin) the yellow and adjacent black (tape them up separately in insulating tape) you have a socket with two live connections. This will fit exactly over pin4 and pin6 to power the unit.
HUGE is pejorative. I have a couple of modern ones in 10cm cubes and another 6x6x100cm. Enough power to run a dozen Pi s, perhaps?!
When working with RPi s remember that, like the BBC Bit, they were intended to teach about coding, robotics and engineering control, never for surfing or distro hopping.
There are a plethora of (over-priced) add-ons sold for A-D and D-A conversion, GPIO extensions and a host of projects stuff, but also including music converters, etc.
And finally, don't believe what you read elsewhere. Don't put your Pi in one of those cute little plastic boxes. Do fit a heatsink on the cpu, esp. for RPi 3.
Hope this helps.
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Tue 28 Mar 2017, 16:38    Post subject:  

Green led always blinks when booting.
If it doesn't then the usual reason is a card that doesn't have bootable
fat32 partition. In other words you screwed up the installation.
The board itself could be fine. Let's hope so.

______________________________________

Quote:
your board there is a row of 40 pins - for connecting a range of inputs and outputs, both (digital)signals and voltages. This is the General Purpose Input/Output bus (short for busbar). They run in pairs, odds down one lane, evens the other (outside) lane. Pins 2 & 4 are +5V, pin 6 is ground/earth/0V.


Yes, Checking the voltage is easy with a voltmeter.
you should look at diagram first.
There are several pins that act as ground.
The voltage dips under 5 volts during booting because of the high current that is drawn, but it should stay above 4.7 V.
j8header.png
 Description   pins for raspberrypi 2
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j8header.png

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Sage

Joined: 04 Oct 2005
Posts: 5302
Location: GB

PostPosted: Wed 29 Mar 2017, 02:11    Post subject:  

Quote:
The voltage dips under 5 volts during booting because of the high current that is drawn

Best reason to use a 'proper' PSU (also gives an on/off mains switch!). I found the tip on one of the many Pi Fora.
[Nice picture don, he has an RPi2 with 40 pins, also try https://www.rasberrypi.org/documentation/usage/... et seq. and ...//pinout.xyz/#]
That GPIO can, of course, be used to advantage for projects with QX8.1.4 via the CLI as well as all the soft apps installed.
A good place for hobbyists to start is with switching things ON&OFF, although might need a simple DAC chip and/or dc-dc converter (99p/eBay)+ relay (eg OmronG2VN -ubiquitous). Always fancied a more advanced project of a weather station, but the add-ons are outrageously priced and looking outa-da-window is quicker and cheaper!
In extremis, this might help:
http://pksato.blogspot.co.uk/2012/12/replacing-polyfuses-of-raspberry-pi.html

Incidentally, since don is showing the pin-outs, keenest coders will note that v2 &3 have I^2C connections on pins 3 & 5. This is the code used to reset counter chips on, inter alia, laser printers (possibly inkjets?). Apart from that fact, I know nothing more, apart from being aware that there is an expert printer buff and coder amongst us, rcrsn.
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amj

Joined: 28 Jan 2011
Posts: 68

PostPosted: Wed 12 Apr 2017, 04:21    Post subject:
Subject description: vlc qt interface
 

In January I made a post on page 37 of this thread saying that I'd experimented with installing the new vlc-plugin-qt from the Debian sid repository. I made a fresh installation of QX814 and installed the plugin, not really expecting it to work. Having made the experiment, I put the micro-SD card in a drawer and moved to something else.

Today I retrieved that micro-SD card, popped it into a RPi2 and launched vlc from the console because I wanted to play some music. After a string of warning messages, up popped the QT interface.

I'm not sure why that did not happen when I made the original experiment and equally unsure why it did work today. But I now have an installation of QX814 with a full vlc running. I've made a desktop icon for vlc and when I click it, up pops the familiar vlc QT interface. And it's working.
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Wed 12 Apr 2017, 18:02    Post subject:  

It is possible to make a pet package for vlc-qt by putting all the debian dependency packages
in one folder and running alien2puppy

I wrote a tutorial.

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amj

Joined: 28 Jan 2011
Posts: 68

PostPosted: Thu 13 Apr 2017, 03:07    Post subject:  

Thanks Don.

For the record, the 11 Debian sid packages I installed were:

libdouble-conversion1_2.0.1-4_armhf.deb
libicu57_57.1-5_armhf.deb
libpng16-16_1.6.27-1_armhf.deb
libqt5core5a_5.7.1+dfsg-2_armhf.deb
libqt5dbus5_5.7.1+dfsg-2_armhf.deb
libqt5gui5_5.7.1+dfsg-2_armhf.deb
libqt5network5_5.7.1+dfsg-2_armhf.deb
libqt5widgets5_5.7.1+dfsg-2_armhf.deb
libqt5x11extras5_5.7.1~20161021-2_armhf.deb
libxcb-xinerama0_1.12-1_armhf.deb
vlc-plugin-qt_2.2.4-12_armhf.deb

I also think a word of warning is appropriate. If you have an existing QX814 installation with QT packages installed, trying to add the vlc-plugin-qt might not be a good idea since the Debian sid packages and any standard Ubuntu QT packages may not be fully compatible.

The plugin may also work on Debian based amd64 versions of Quirky Xerus. I may experiment with the QX815 system I have.
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Thu 13 Apr 2017, 12:04    Post subject:  

Thank for info . If I have time I'll down load those and make the pet package.
Just put the packages in a folder and run script 'alien2puppy'

Quote:
The folder can be named anything appropriate.

cd inside your folder full of debian packages.
In terminal type
Code:
alien2puppy -p audacity-july20-1.3.13

A folder named audacity-july20-1.3.13 is now created

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Mitchellray

Joined: 07 Dec 2009
Posts: 115

PostPosted: Wed 03 May 2017, 12:20    Post subject: Copy to SD Card - Process not completing; Card Won't Boot  

Hello,
I downloaded quirky xerus 8.1.4.
Then, unxz --stdout quirky-pi2-sd-8gb-xerus-8.1.4.img.xz | dd of=/dev/mmcblk0 bs=4M.
Then, the process never terminates.
I type in the terminal (but there is no prompt yet) sync (return).

I kill the process after a long time, and viewing the SDcard, there are two partitions created. Oddly, even though the card is formatted for fat32, and flagged 'boot', a second linux partition shows up with files in it. I reformatted three times to fat32 after deleting all partitions, but same results.

Then, when trying to boot the Raspberry Pi3, it can't launch X.
I try xwin, and I try xorgwizard.

16GB Sandisk extreme brand new
Using Precise Puppy o/s
md5sum for download passes

Error Messages

xwin -> /usr/bin/xwin: line 12: .: /user/bin/gettext.sh: cannot execute binary file starting X, specs in /etc/X11 , startup apps /root/xinitrc....
Exited from X

xorgwizard -> /usr/sbin/xorgwizard: line 91: .: /usr/bin/gettext.sh: cannot execute binary file
mkdir: cannot create directory '/var/local/' : too many levels of symbolic links

Thanks.
Mitchellray
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Wed 03 May 2017, 18:06    Post subject:  

Quote:
I type in the terminal (but there is no prompt yet) sync (return).


There MUST be a prompt symbol, then type 'sync'

Sometimes Barry's method of installation takes a long time Crying or Very sad

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Mitchellray

Joined: 07 Dec 2009
Posts: 115

PostPosted: Wed 03 May 2017, 18:40    Post subject: Copy to SD - Process not completing; Won't boot - resolved?  

Thanks don570,

I tried it again without the boot flag toggled by gparted.

The same thing occurred where the process of dd to sd card would not terminate, even after over one half of an hour.

I killed the process and put the sd card in the Raspberry Pi3 and this time it booted to desktop and setup dialog box.

I will have to see if any functionality is impaired or if files are missing.
So far, it will at least get online.
Mitchellray
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Wed 03 May 2017, 19:28    Post subject:  

I had the same experience once as well.

The solution was take the card to a Windows machine and use their software to
format it --- I believe I chose fat32

Everything went well after that.
I think the problem was trying to use gparted in linux OS Crying or Very sad

By the way you don't need to mark the partition 'boot'

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amj

Joined: 28 Jan 2011
Posts: 68

PostPosted: Sat 06 May 2017, 05:43    Post subject:  

Mitchellray, reading your description makes me wonder if your original download of the image terminated successfully?

If your download of the image cut out just before the end, attempting to write the incomplete image onto the card might give problems of the sort you describe.
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don570


Joined: 10 Mar 2010
Posts: 4757
Location: Ontario

PostPosted: Sat 06 May 2017, 15:50    Post subject:  

The file downloaded correctly so I'm sure that the problem is that gparted is having problems with formatting the card .

I suggest going to windows and formatting as fat32 with

https://www.sdcard.org/downloads/formatter_4/index.html

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rameshiyer

Joined: 17 Sep 2009
Posts: 251
Location: Calicut, Kerala, India

PostPosted: Sun 14 May 2017, 04:46    Post subject: Seamonkey
Subject description: Browsing problems
 

Unable to browse certain site in Seamonkey browseer. It says it is not supported. (www.amazon.in, etc.) Also while browsing google.com, I am getting mobile site. I don't know this is because of Internet connection. I am getting internet through mobile hotspot .

Any other browser for raspberry pi3. Quirky Xerus 8.1.4)
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