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by beta-tester
Wed Dec 27, 2017 8:20 am
Forum: Beginners
Topic: (SOLVED) Lost storage from formatting Raspbian microSD
Replies: 2
Views: 261

Re: Lost storage from formatting Raspbian microSD

don't care about the second partition that windows can not handle - do not try to repair or format that partition, when windows is asking you . the second partition is formated with a file system (ext4) that windows don't know, but it is the root file system for linux and the linux world knows how t...
by beta-tester
Wed Dec 27, 2017 12:02 am
Forum: Raspbian
Topic: How to use retro pi on a already installed Rasbian
Replies: 2
Views: 313

Re: How to use retro pi on a already installed Rasbian

https://retropie.org.uk/docs/Manual-Installation/ installation of retropie on top of actual raspbian-stretch is still not supported yet. if you try, you will end up with an error. https://github.com/RetroPie/RetroPie-Setup/blob/master/scriptmodules/system.sh https://github.com/RetroPie/RetroPie-Setu...
by beta-tester
Tue Dec 26, 2017 11:15 pm
Forum: Troubleshooting
Topic: Fail to start /etc/rc.local
Replies: 10
Views: 5904

Re: Fail to start /etc/rc.local

I typed exec >/boot/local.txt 2>&1;set -x and got: [email protected]:~ $ -bash: /boot/local.txt: Permission denied + -bash: /boot/local.txt: Permission denied -bash: -bash:: command not found [email protected]:~ $ that's normal, when you typed that in to the command line. (to write a file to /boot, you need to hav...
by beta-tester
Tue Dec 26, 2017 10:42 pm
Forum: Beginners
Topic: Blinkt RGB
Replies: 1
Views: 206

Re: Blinkt RGB

https://pinout.xyz/pinout/blinkt#

yes a value in a range of 0..255 per component.

e.g. for white:

Code: Select all

python rgb.py 255 255 255
by beta-tester
Tue Dec 26, 2017 7:04 pm
Forum: Troubleshooting
Topic: Problem during sudo apt-get dist-upgrade (Pi B+)
Replies: 8
Views: 1287

Re: Problem during sudo apt-get dist-upgrade (Pi B+)

next time, if you simply want to update a single package then you can use sudo apt-get update sudo apt-get install --only-upgrade python (for upgrade python only) BTH: i think you can't make your installation even worse... try to install the missing package by hand sudo apt-get install libexpat1-dev...
by beta-tester
Tue Dec 26, 2017 2:01 pm
Forum: Beginners
Topic: Connecting 5 white LEDs to raspberry pi for remote on/off
Replies: 17
Views: 1616

Re: Connecting 5 white LEDs to raspberry pi for remote on/off

mahjongg wrote:
Tue Dec 26, 2017 1:09 pm
... or am I completely wrong in my guesses?
sorry but yes you are (sort of) wrong.
no problem...
always good when somebody tells me what i am doing/thinking wrong.
so i can learn something new... :idea:
by beta-tester
Tue Dec 26, 2017 1:14 pm
Forum: Troubleshooting
Topic: Problem during sudo apt-get dist-upgrade (Pi B+)
Replies: 8
Views: 1287

Re: Problem during sudo apt-get dist-upgrade (Pi B+)

isn't it better to do an upgrade first, to upgrade all installed packages of your current installed raspbian-wheezy befor doing a distribution upgrade to the new raspbian-stretch via dist-upgrade ? sudo apt-get update sudo apt-get upgrade sudo reboot and then if you still want to upgrade to a new di...
by beta-tester
Tue Dec 26, 2017 1:06 pm
Forum: Troubleshooting
Topic: Fail to start /etc/rc.local
Replies: 10
Views: 5904

Re: Fail to start /etc/rc.local

stupid question...
will you get any error, when you type in that command line to the console/terminal

Code: Select all

sudo -u pi /usr/bin/python /usr/bin/deluge-web
while you are logge on?
by beta-tester
Tue Dec 26, 2017 12:41 pm
Forum: Beginners
Topic: Connecting 5 white LEDs to raspberry pi for remote on/off
Replies: 17
Views: 1616

Re: Connecting 5 white LEDs to raspberry pi for remote on/off

It appears your LEDs are connected in parallel, as white LEDs normally operate at 3.3 v with a forward voltage of 20-25mA you will have a current draw of 100-125mA. I thought, if the LEDs are parallel, you do not have to limit the current to 100-125mA, you still have to limit the current to 20-25mA...
by beta-tester
Tue Dec 26, 2017 12:15 pm
Forum: General discussion
Topic: raspberry pi problems in industries
Replies: 20
Views: 3413

Re: raspberry pi problems in industries

is the case shielded against electrical and magnetical fields? is the interface galvanic isolated (optocoupler) do you have equipment to see and measure what is going on when the motors turn on and off. you assume, that there are no spikes on power line and data/signal lines, but did you measured (o...
by beta-tester
Tue Dec 26, 2017 10:16 am
Forum: Raspbian
Topic: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.
Replies: 41
Views: 12124

Re: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.

thinking about that you are asking for fstab, i went back to a pure virgine actual Raspbian-Stretch-lite (2017-11-29) installation on a RPi3 with nothing connected but SD card (16GB), TV, ethernet cable and power supply (yes, good and strong enough for RPi3). the only modification were, enabling SSH...
by beta-tester
Sun Dec 24, 2017 10:06 pm
Forum: Raspbian
Topic: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.
Replies: 41
Views: 12124

Re: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.

You don't have a stable clock. Is it always going back to November 2016? Whatever syncs your clock starts too late. What's in /etc/fstab? on that specific RPi it is a bit special: proc /proc proc defaults 0 0 PARTUUID=a754701d-01 /boot vfat defaults 0 2 PARTUUID=a754701d-02 / ext4 defaults,noatime ...
by beta-tester
Sun Dec 24, 2017 8:56 pm
Forum: Raspbian
Topic: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.
Replies: 41
Views: 12124

Re: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.

stupid me, why i didn't looked into the journalctl before... :oops: the reason is "Superblock last mount time (Sun Dec 24 21:32:48 2017, now = Thu Nov 3 18:16:44 2016) is in the future." that's, what you already told... in those cases the disk check starts running before the kernel got the correct o...
by beta-tester
Sun Dec 24, 2017 4:40 pm
Forum: Troubleshooting
Topic: Pi 3 USB booting suddenly stopped working
Replies: 6
Views: 626

Re: Pi 3 USB booting suddenly stopped working

So Pi still does load U-Boot from USB then? the whole outout on your first screenshot is from U-Boot. so U-Boot is loaded and is running. maybe the update destroyed some configuration files that U-Boot is expecting. i guess if the updating software isn't expecting a foreign software it is possible ...
by beta-tester
Sun Dec 24, 2017 4:17 pm
Forum: General discussion
Topic: Airport security
Replies: 19
Views: 4514

Re: Airport security

by the way.
when i was at the airport heathrow, i missed to see a shop that is selling RPis there - i thought an Raspberry Pi is a UK product that should be sold at eack airport in UK as souvenir ... :lol:
and free of VAT
by beta-tester
Sun Dec 24, 2017 10:27 am
Forum: Beginners
Topic: 1MOhms
Replies: 17
Views: 1252

Re: 1MOhms

when there is an optical/visual indicator on the switch device, maybe it would be more safe and secure to detect the state by using an optical light reflection switch like ITR-8307 i think the black spot/gap on top left is a kind of visual indicator. when you place a light reflection switch above th...
by beta-tester
Sun Dec 24, 2017 9:22 am
Forum: General discussion
Topic: Airport security
Replies: 19
Views: 4514

Re: Airport security

years ago (5 or so), i was flying back from thailand to germany with a metal tool box in my hand luggage, with fixed installation of an ATX power supply, a 5 port network switch, 4 RPi, everything was wired up. from the outside of the metal tool box you saw a power plug, ventillation holes, 4 BNC co...
by beta-tester
Sun Dec 24, 2017 8:28 am
Forum: Raspbian
Topic: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.
Replies: 41
Views: 12124

Re: Raspbian Stretch 2017-11-29 performs always intensive disk check when booting w/o network.

i have also an external USB memory stick (SanDisk 64GB UltraFit, with ext4 file system) attached to my RPi, but i have it only for extra data storage permanently plugged in and not for boot or root file system. is it possible, that the shutdown process isn't clearing and flushing the " dirty bit " p...
by beta-tester
Sat Dec 16, 2017 8:51 am
Forum: General discussion
Topic: Cloud Connection on wlan0 Terminates when Ethernet plugged in on Raspberry Pi 3
Replies: 2
Views: 294

Re: Cloud Connection on wlan0 Terminates when Ethernet plugged in on Raspberry Pi 3

broe23 wrote:
Sat Dec 16, 2017 6:33 am
You need to create a bridge so that both connections stay live. See if this will help. https://www.realvnc.com/en/connect/docs ... y-pi-setup
i can't find anything about a bridge in the help :?
by beta-tester
Sat Dec 09, 2017 5:26 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Wanted : Raspian DVD to install on PC
Replies: 4
Views: 649

Re: Wanted : Raspian DVD to install on PC

Hi Mike, that is VERY kind of you. I don't want to ask you for your email on a public forum. ... you should not post your email address on the public part of the forum... for that kind of conversation you should use the send privat message "bubble" on mikes Contact on the right under his avatar ima...
by beta-tester
Sat Dec 09, 2017 4:42 pm
Forum: Windows 10 for IoT
Topic: Windows 10 for IoT filename?
Replies: 2
Views: 888

Re: Windows 10 for IoT filename?

Hello, I just downloaded the Windows 10 for IoT .iso file from the official website (https://developer.microsoft.com/en-us/windows/iot/downloads). I noticed that the filename was: 16299.15.170928-1534.rs3_release_ amd64 fre_IOTCORE_ RPi .iso I was just curious why, since the filename also includes ...
by beta-tester
Tue Dec 05, 2017 7:54 am
Forum: Raspbian
Topic: Are multiple pps-gpio overlays possible?
Replies: 5
Views: 1464

Re: Are multiple pps-gpio overlays possible?

maybe the module of RPi isn't able to provide more than one pps-gpio. did you found out, who is responsable for the pps-gpio overlay? maybe Noralf Trønnes aka notro https://github.com/raspberrypi/linux/blob/rpi-4.9.y/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts did you asked already in the debian...
by beta-tester
Sun Dec 03, 2017 3:00 pm
Forum: Advanced users
Topic: is it possible to have different hostnames on differnt eth interfaces?
Replies: 5
Views: 685

Re: is it possible to have different hostnames on differnt eth interfaces?

sparkie777 wrote:
Sun Dec 03, 2017 1:50 pm
it's just a matter of your name service to deliver hostname_A for 10.0.0.2 and hostname_B for 192.168.0.1.
how can i influence the delivery behavior?
(for my case, obviously not by changing /etc/hostname)
by beta-tester
Sun Dec 03, 2017 1:59 pm
Forum: Advanced users
Topic: is it possible to make SAMBA totally quiet to a specific ethX interface?
Replies: 0
Views: 244

is it possible to make SAMBA totally quiet to a specific ethX interface?

hi, my RPi has two network interfaces eth0 and eth1. i want to have SAMBA active only to eth0 and totally quiet to eth1. so i bind samba only to eth0 and its ip range. but i still get some samba broadcast traffic in wireshark from my RPi on eth1: No. Time Source Destination Protocol Len Info 10410 1...
by beta-tester
Sun Dec 03, 2017 1:31 pm
Forum: Advanced users
Topic: is it possible to have different hostnames on differnt eth interfaces?
Replies: 5
Views: 685

is it possible to have different hostnames on differnt eth interfaces?

hi, i have a RPi, that has the internal network insteface eth0 connected to the switch/router and an external usb network interface eth1 connected to a test device. is it possible that my RPi is visible to network_A (switch/router) with hostname_A and to network_B (test device) as hostname_B ? : : :...

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