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by fbe
Sun Jul 21, 2019 8:49 pm
Forum: Beginners
Topic: Pi as a sound board for a model railway - possible?
Replies: 3
Views: 81

Re: Pi as a sound board for a model railway - possible?

I’ve not seen a board driving multiple speakers with different sounds for the Pi (maybe someone has though). You need an "output device" for each speaker if you want to play different sounds at the same time. Just for curiosity I connected two bluetooth speakers to the same board and I'm able to pl...
by fbe
Fri Jul 19, 2019 9:56 pm
Forum: Raspbian
Topic: Upgraded Stretch to Buster on 3B+; won't boot on 4B?
Replies: 3
Views: 182

Re: Upgraded Stretch to Buster on 3B+; won't boot on 4B?

When the next new Raspberry Pi Board will appear, your installation will be unbootable again on it, even if you upgrade Raspbian. NOOBS is not upgrading automatically. Many users avoid NOOBS for that reason. If you need to upgrade NOOBS manually see: https://www.raspberrypi.org/forums/viewtopic.php?...
by fbe
Tue Jul 16, 2019 7:45 pm
Forum: Troubleshooting
Topic: Bluetooth issue when python script run from boot console
Replies: 13
Views: 248

Re: Bluetooth issue when python script run from boot console

You were asked to post the script in full (or the link to the source where you found the script and other instructions that you are following)...
by fbe
Mon Jul 15, 2019 9:15 pm
Forum: Troubleshooting
Topic: Post Buster Update Seems Broke
Replies: 2
Views: 126

Re: Post Buster Update Seems Broke

Are you using a Raspberry Pi with Raspbian or a PC with Debian and Raspberry Pi Desktop?
by fbe
Mon Jul 15, 2019 7:44 pm
Forum: Troubleshooting
Topic: MPD and bluetooth speaker issue in Raspbian Buster (used to work with Stretch)
Replies: 2
Views: 127

Re: MPD and bluetooth speaker issue in Raspbian Buster (used to work with Stretch)

First success with workaround:

Code: Select all

audio_output {
       type            "pipe"
       name            "pipe to JBL GO"
       command         "aplay -D bluealsa:HCI=hci0,DEV=78:44:05:8d:06:74,PROFILE=a2dp -f cd 2>/dev/null"
       format          "44100:16:2"
}
in /etc/mpd.conf
by fbe
Sun Jul 14, 2019 6:38 pm
Forum: Troubleshooting
Topic: How to migrate from rpi3 to rpi4?
Replies: 4
Views: 146

Re: How to migrate from rpi3 to rpi4?

If you have a second SD card available, write a recent raspbian image on it and try to boot that, to make sure that all other parts are working correctly. Then you might retry with your upgraded SD card. If you are using an NOOBS with Raspbian look here https://www.raspberrypi.org/forums/viewtopic.p...
by fbe
Sun Jul 14, 2019 6:13 pm
Forum: Beginners
Topic: how to copy 1 external SD to another external SD?
Replies: 28
Views: 730

Re: how to copy 1 external SD to another external SD?

I can confirm that I have a card reader with a slot for µSD cards and a slot for SD cards. Both slots are shown as the same device (/dev/sda). I can see only the card that is recognised first from both slots. Other slots on the same card reader (for MS, XD, CF cards) have different device names (/de...
by fbe
Sat Jul 13, 2019 10:22 pm
Forum: Troubleshooting
Topic: MPD and bluetooth speaker issue in Raspbian Buster (used to work with Stretch)
Replies: 2
Views: 127

MPD and bluetooth speaker issue in Raspbian Buster (used to work with Stretch)

Installed Raspbian Buster Lite (2019-07-10). sudo apt install mpd mpc bluealsa After reboot paired and connected my speaker using bluetoothctl. aplay -D bluealsa:HCI=hci0,DEV=78:44:05:8d:06:74,PROFILE=a2dp /usr/share/sounds/alsa/Front_Center.wav produces sound as expected. Appended configuration to ...
by fbe
Sat Jul 13, 2019 8:08 pm
Forum: Troubleshooting
Topic: Bluetooth issue when python script run from boot console
Replies: 13
Views: 248

Re: Bluetooth issue when python script run from boot console

Any reason you need to run under SUDO? Your recommended help. ... This may help https://www.dexterindustries.com/howto/run-a-program-on-your-raspberry-pi-at-startup/ ... ... Sudo, sudo, sudo, lovely sudo Wonderful sudo, lovely sudo ... Any other ideas??? Is the sound coming over the audio jack or H...
by fbe
Sat Jul 13, 2019 7:28 pm
Forum: Deutsch
Topic: Raspberry Pi als Türöffner
Replies: 5
Views: 203

Re: Raspberry Pi als Türöffner

mline wrote:
Sat Jul 13, 2019 7:13 pm
Das versteh ich nicht ganz. In der Zeichnung hast du eine Parallelschaltung von 500Ohm und 1000Ohm. Das ergibt aber nicht 500Ohm sondern ~333Ohm.
Lies mal von rechts nach links.
Rechts steht "je 1000Ω" und links "Rges=500Ω".
by fbe
Thu Jul 11, 2019 6:37 pm
Forum: Beginners
Topic: Login Wallpaper Impossible to Change
Replies: 2
Views: 117

Re: Login Wallpaper Impossible to Change

The login screen is configured in /etc/lightdm/pi-greeter.conf if you use the Raspberry Pi Desktop default pi-greeter. The wallpaper is changed together with the desktop wallpaper (in the "Appearance Settings") if a user has the privileges. pi has the privilege. Other users might get error messages ...
by fbe
Wed Jul 10, 2019 5:12 pm
Forum: General discussion
Topic: Raspberry Pi 4 can´t boot!
Replies: 12
Views: 470

Re: Raspberry Pi 4 can´t boot!

You mentioned Raspberry Pi 4 and SD card only. Are you trying to install headless or have you got keyboard, mouse and screen for your Raspberry Pi?
What power supply are you using?
by fbe
Sun Jul 07, 2019 7:51 pm
Forum: Beginners
Topic: Mac users - booting Buster from SD + HDD
Replies: 4
Views: 182

Re: Mac users - booting Buster from SD + HDD

Is this the cmdline.txt as saved on your Mac? The "init=/usr/lib/raspi-config/init_resize.sh" is missing here too, that is commonly present on the original image.
Is the root filesystem extended to use the whole disk by etcher already, or do you need to do it later?
by fbe
Sun Jul 07, 2019 6:56 pm
Forum: Troubleshooting
Topic: HELP! Rpi4 stuck at rainbow stage after firmware update.
Replies: 4
Views: 289

Re: HELP! Rpi4 stuck at rainbow stage after firmware update.

Before Raspberry Pi4 rpi-update used to make unbootable SD cards/USB drives only. I don't know whether or not it now also writes poorly tested things into the EEPROM of a Raspberry Pi4. Try to write a new image onto your SD card and remove all USB devices except for keyboard and mouse. If that boots...
by fbe
Sun Jul 07, 2019 6:24 pm
Forum: Beginners
Topic: Mac users - booting Buster from SD + HDD
Replies: 4
Views: 182

Re: Mac users - booting Buster from SD + HDD

If you write the same image to both devices you don't need to copy the cmdline.txt from HDD to SD card. :?
How do you make sure that the root filesystem is mounted from the HDD and not from SD card?
by fbe
Fri Jul 05, 2019 6:24 pm
Forum: Deutsch
Topic: Openmediavault Will einfach nicht booten
Replies: 1
Views: 126

Re: Openmediavault Will einfach nicht booten

Nach diesem Video https://www.youtube.com/watch?v=vY5PSAhjD2s siehst Du: Changing password for root. (current) UNIX password: Da wird das gegenwärtige UNIX Kennwort von root verlangt - also openmediavault. Wenn das stimmt, wirst Du zwei mal nach dem neuen Kennwort gefragt, dass ab jetzt für root gel...
by fbe
Mon Jul 01, 2019 11:07 pm
Forum: Beginners
Topic: MariaDB help forum?? Can't log on initially
Replies: 6
Views: 168

Re: MariaDB help forum?? Can't log on initially

Avoid tutorials that recommend mysql_secure_installation on Debian/Raspbian Stretch or Buster.
Avoid tutorials that recommend to configure native password authentification for root@localhost on Debian/Raspbian Stretch or Buster without mentioning that a logrotate job will break and how to fix that.
by fbe
Sun Jun 30, 2019 10:49 am
Forum: General discussion
Topic: LINUX to WIN 10 Remote Desktop Connectivity
Replies: 8
Views: 421

Re: LINUX to WIN 10 Remote Desktop Connectivity

If you are using Raspbian Stretch or Buster create a file ".xsessionrc" in your home directory (/home/pi) with contents:

Code: Select all

export XAUTHORITY=${HOME}/.Xauthority
After next login via Remote Desktop you can use the "Raspberry Pi Configuration" application to configure your keyboard layout
by fbe
Fri Jun 28, 2019 6:45 pm
Forum: General discussion
Topic: /boot not on FAT for RPi4
Replies: 9
Views: 713

Re: /boot not on FAT for RPi4

MBR relies on x86 instructions. It is possible to emulate the ones required, but seems pointless. The MBR has an area that is reserved for bootcode. The bootcode should at least start with x86 instructions that avoid unexpected behavior if a x86 system accidentically tries to boot, using this MBR. ...
by fbe
Sun Jun 23, 2019 5:51 am
Forum: Beginners
Topic: PHPBB Forum Server on Raspberry pi
Replies: 14
Views: 647

Re: PHPBB Forum Server on Raspberry pi

Yes, Raspbian Stretch with Desktop (with or without recommended software) will work and might be easier to use, as you can open a browser here and just copy and paste my commands into a terminal window. I didn't need to setup the keyboard because the keyboard setup of my remote Windows machine was u...
by fbe
Fri Jun 21, 2019 9:23 pm
Forum: Beginners
Topic: PHPBB Forum Server on Raspberry pi
Replies: 14
Views: 647

Re: PHPBB Forum Server on Raspberry pi

Just to demonstrate that the installation is possible on Raspbian Stretch Lite (2019-04-08). Setup was headless, connected via ethernet, ssh enabled, static ip address (192.168.2.113) configured in /etc/dhcpcd.conf (my router doesn't support fixed IP address assignment...) sudo apt update sudo apt -...
by fbe
Wed Jun 12, 2019 8:05 pm
Forum: Deutsch
Topic: Python mit Vergleichsoperatoren|Verständnisprobleme?
Replies: 5
Views: 366

Re: Python mit Vergleichsoperatoren|Verständnisprobleme?

Du vergleichst Strings mit Zahlen.
by fbe
Sun Jun 09, 2019 8:47 pm
Forum: Beginners
Topic: PHP Extension Intl missing
Replies: 4
Views: 147

Re: PHP Extension Intl missing

Your PHP version is quite unusual for Raspbian Stretch. You need to figure out the package name, you have to install. Raspbian Stretch has php7.0 in its repository.

Code: Select all

sudo apt install php-intl
would try to install the package php7.0-intl and most likely fails if a package php5.6 is installed...
by fbe
Fri May 31, 2019 6:47 pm
Forum: Networking and servers
Topic: [LAMP server] - Need help with last part of WordPress install
Replies: 7
Views: 357

Re: [LAMP server] - Need help with last part of WordPress install

You can't install phpmyadmin if you completed the tutorial, that you mentioned in your first post. You must install it before the GRANT ALL PRIVILEGES ON wordpress.* TO 'root'@'localhost' IDENTIFIED BY 'YOURPASSWORD'; step. The installation of phpmyadmin fails if root needs a password to login to th...
by fbe
Wed May 22, 2019 6:15 pm
Forum: Deutsch
Topic: SD-Karte und USB-Stick wird zerschrieben.
Replies: 8
Views: 586

Re: SD-Karte und USB-Stick wird zerschrieben.

Leg mal eine Speicherkarte neben deinen Pi und schau mal, ob die auch kaputt geht. Vielleicht kommt das ja gar nicht vom Schreiben.

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