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10 votes

Setting up a WiFi-direct connection using pi3+arch linux arm and Android

I had the same problem. Then I found that a wpa_supplicant process was already started at boot time to connect to public WIFI. This is why there is the "resource busy" error message. I did a sudo ...
Pomin Wu's user avatar
  • 101
6 votes

ArchLinux-SSH-First time boot

You could find the IP address using arp-scan or nmap's ping scan), but could also use the default /etc/hostname alarmpi in place of the IP address if DNS is working in your network. If your DNS is not ...
Jonathan Komar's user avatar
6 votes
Accepted

Serial output in case of no OS

is there a possibility to read information trough the serial device even if there is no boot device? Yes! It is possible since Raspberry Pi 4B. The RPi 4B comes with an EEPROM containing the boot ...
Ingo's user avatar
  • 42.2k
5 votes

Option for Arch Linux not showing in NOOBS. Alternative solutions?

There's a fork of the NOOBs project, called PINN, simply download the latest zip, then per a NOOBs install, expand the contents of the zip to a freshly MS-DOS formatted SDcard, stick it in the Pi, and ...
arober11's user avatar
  • 171
5 votes

Using openbox to autostart GUI application Raspberry Pi 3

This is the simple answer: sudo update-alternatives --config x-session-manager One can just run this and select the openbox-session then the next restart will get you the openbox window manager. No ...
David Savage's user avatar
5 votes

How do I install packages from the AUR?

IMPORTANT! yaourt is insecure and deprecated according to the wiki: https://wiki.archlinux.org/index.php/AUR_helpers While @Jivings answer was best back in `12, I would recommend installing one of ...
mjd2's user avatar
  • 151
5 votes
Accepted

Can I use a Raspberry Pi with two different sd cards as two different computers?

You can use your Raspberry Pi with different SD cards and thus different Operating Systems in turns. Obviously you will have to power down the Pi and physically change the SD card first but other than ...
Ghanima's user avatar
  • 15.9k
5 votes

Sharing exFAT drive via Netatalk, can't create directories

I was able to solve this problem by adding: unix priv = no to the [share] section in /etc/netatalk/afp.conf. Inspirational source: http://www.gattis.org/Work-and-Tech/operating-systems-and-...
user3097732's user avatar
4 votes

Where does my secondary IP come from?

Edit /etc/dhcpcd.conf This happened to me too (albiet on Raspbian). If you'd rather not totally disable the dhcpcd service, you can add this to /etc/dhcpcd.conf to inform it of your static interface: ...
Hydraxan14's user avatar
  • 1,846
4 votes

Using openbox to autostart GUI application Raspberry Pi 3

I had the same problem. I post it for any future googlers. Disable Desktop autologin Run sudo raspi-config and navigate to 3 Boot Options / B1 Desktop / Cliand choose B2 Console Autologin Run ...
BaumGardine's user avatar
4 votes

Serial output in case of no OS

is there a possibility to read information trough the serial device even if there is no boot device? See Ingo's answer -- which may or may not provide useful information in the context of your ...
goldilocks's user avatar
  • 59.2k
3 votes

Why do I have so many RAM disks?

Short answer: it is just a fdisk peculiarity on latest versions. Alternatively you could also use parted and lsblk. Extracted from this thread at AskUbuntu: On later versions of fdisk the ...
Sopalajo de Arrierez's user avatar
3 votes
Accepted

How can I setup the video / graphics on the Raspberry Pi 3?

The options in order of decreasing age and stability : 1) The GPU 3D/Video BLOB which respects gpu_mem 2) The 2D framebuffer drivers fbdev / fbturbo 3) The in-kernel KMS/3D driver started by Eric ...
flakeshake's user avatar
  • 6,213
3 votes

Disabling watchdog in Raspberry Pi Archlinux ARM

Watchdog is built into the Raspbian kernel using CONFIG_WATCHDOG=y in kernel parameters, so rmmod is not possible unless you rebuild the kernel. /proc/sys/kernel/watchdog is not implemented in ...
Dmitry Grigoryev's user avatar
3 votes

How can I run a cross-compile binary on my RPi?

I haven't completely understood what you have done, but in respect to your own answer it is in general possible to run 32 bit programs on a RasPi running a 32 bit or a 64 bit kernel. You cannot run a ...
Ingo's user avatar
  • 42.2k
3 votes

aarch64 or armv8 with Arch on a Raspberry Pi 4?

I was able to install 64-bit archlinux on a Raspberry Pi 4 after seeing @VinnieThePooh's answer which contained a link to root filesystems which I then could burn into the SD Card and boot. Here are ...
Miguel Mota's user avatar
3 votes

RPi 4 -- Garbage on serial console (UART) using upstream kernel

Only for the completeness: first check your connection as shown at What is the correct way to connect serial console on RPi4 Model B?. But I believe you are right. As I see you are experimenting with ...
Ingo's user avatar
  • 42.2k
3 votes

How safe is it to connect a Seagate 2TB Expansion Drive to Raspberry Pi 4B?

To answer your questions sequentially: If you are using a portable external hard drive from a reputed manufacturer, the enclosure should have vibration pads inside to protect the drive from shocks ...
Shivang P Swain's user avatar
3 votes

How safe is it to connect a Seagate 2TB Expansion Drive to Raspberry Pi 4B?

To add to Shivang's answer: I've used a "spinning disk" USB drive powered from one of the USB3 ports on my RPi 4B for over a year now, and on a 3B for years before that. It runs 24x7, and I'...
Seamus's user avatar
  • 22.3k
3 votes
Accepted

How to run Arch from a usb SSD on a rasp4

The Pi4 boots fine from an SSD once the eeprom is updated. My standard set up is to use an SD Card with Raspberry Pi 4 EEPROM boot recovery on it to update the EEPROM (https://www.raspberrypi.org/...
Bra1n's user avatar
  • 1,251
2 votes

Static IP on Arch Linux

All of these solutions didn't work for me. I fixed it by doing this: sudo vim /etc/systemd/network/eth0.network remove the line that says DHCP=yes then, make sure your [Network] part looks like ...
Exeleration-G's user avatar
2 votes

Install Arch Linux from osx

Step by step Procedure Following the Arch Linux Raspberry Pi 3 Installation Guide, it is possible to abstract the steps necessary to do this on macOS without any virtualization. It is a matter of ...
Jonathan Komar's user avatar
2 votes

Cannot update Arch Linux

If @goldilocks' solution does not work, which it did not for me, you can always do a DNS lookup on the failing hostnames and use your /etc/hosts file to map the IP addresses to the hostnames. I had ...
JayRugMan's user avatar
2 votes

How to connect a Raspberry PI 3 to USB TTY cable

Hello I assume you have installed required driver for USB to TTY , and in your MAC you have to connect throw this command line : screen /dev/cu.usbserial 115200 But before doing that (and just for ...
Mahmoud Almostafa RABBAH's user avatar
2 votes

How can I play different videos at same time?

you can use omxplayer --layer n option where n means the priority. higher number means top layer. on first tab run omxplayer --layer 1 --win ..... and on second tab run omxplayer --layer 2 --win ........
Rubayet's user avatar
  • 21
2 votes

Internal network between multiple RPis

Assuming pi_0 has IP 10.0.1.1 on the external network and www is the connection to the internet. Just enable routing (add net.ipv4.ip_forward=1 in /etc/sysctl.conf) on pi_0, define a static route on ...
framp's user avatar
  • 900
2 votes

Does Arch come with a GUI preinstalled?

No, Arch doesn't come with a desktop environment. Why, because whats the fun in having one pre-installed. The point in Arch is, to build it yourself.
Calebayes's user avatar
2 votes
Accepted

GPIO outputs not changing on specific GPIO ports

GPIO 5 and GPIO 6 are not brought out to the expansion header on a PiB Rev.2. How are you testing their value? GPIO 2, 3, and 4 are connected to expansion header pins 3, 5, and 7 respectively. How ...
joan's user avatar
  • 71.2k
2 votes

"I2C transfer failed" flooding the logs

UPDATE: Actually... this doesn't fully resolve the issue. These messages are now in the log: i2c-bcm2835 3f805000.i2c: i2c transfer timed out Deeper debugging is necessary to figure out what is ...
alexei's user avatar
  • 121

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