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1500 questions
12
votes
4 answers

MacOS Not Discovering Raspberry Pi Zero as an USB Ethernet Device

Issue MacOS is not finding/discovering my Raspberry Pi Zero as an USB Ethernet Device upon USB connection. Background I flashed my Raspberry Pi Zero with the ARMEL firmware, linked on the page re4son-kernel. After flashing the firmware, I opened…
Nicholas Adamou
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1 answer

Why is wpa_cli producing error "Could not connect to wpa_supplicant: wlan0 - re-trying"?

I am running 4.9.13-4-ARCH #1 SMP Sat Mar 11 14:16:01 MST 2017 armv7l GNU/Linux and I am using systemd-networkd for the network in conjunction with wpa_supplicant, obviously. Running wpa_cli -i wlan0: wpa_cli v2.6 Copyright (c) 2004-2016, Jouni…
Jonathan Komar
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12
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5 answers

DD claiming to write to SD card, not doing anything

I'm running into an issue where if I attempt to flash a microSD card with sudo dd bs=4M if=some_pi_image.img of=/dev/sdb It claims to have written the image at about 1.9 GB/s, with output: 1088+0 records in 1088+0 records out 4563402752 bytes (4.6…
Alexander Lucas
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12
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2 answers

Dangers of Underpowered Pi?

I'm reading that the lightning bolt in the top right corner of my pi means that it is currently underpowered. I won't be able to get a new cord for a few days and I'm wondering if running under powered will have any long term negative effect on the…
Philip Kirkbride
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12
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7 answers

Powering Raspberry Pi 3 from another Raspberry Pi 3

Is it possible to power a Raspberry Pi 3 directly from another Raspberry Pi 3 that is powered from a Micro USB socket. I understand there is a 5v rail and I am thinking that linking the 5v rails together might work. I think the 5v rail bypasses the…
Robert3452
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12
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2 answers

How to use Stretch/testing packages?

I want to install the last version of Deluge on my Raspbian. The current distribution, Jessie (stable), contains the 1.3.10 version but I want the last one 1.3.13. The next distribution, Stretch (testing), contains the 1.3.13 version. How can I…
Fedy2
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12
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3 answers

Remove SSH warning about default password

I'm running Jessie Pixel on my RP2 and every time I log in via SSH I get the message: SSH is enabled and the default password for the 'pi' user has not been changed. This is a security risk - please login as the 'pi' user and type 'passwd' to set…
user57965
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12
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3 answers

How do I set up a storage device that is only "on" when used?

I use my Pi as a homeserver (headless via ssh, always on, restarted once a week). It's running raspbian, and I am running Ubuntu on my Desktop. Now, I want to add hard drives for backups and NAS to the Pi. At the moment I use an external usb hard…
verpfeilt
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12
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3 answers

Raspberry Pi 3 has less than 1GB memory available at OS level

I don't know if it is a critical issue or not. But, I need to get rid of the question marks in my mind. I recently purchased a Raspberry Pi 3 board and while I was playing with it, I realized that meminfo shows the physical memory size much…
vaha
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12
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4 answers

How can I mass-provision a lot of RPi's at once?

Here at Stack Exchange we're deploying a bunch of Raspberry Pi's to do various displays in our new awesome NYC headquarters. I'm trying to mass-provision the units with the same SD Card image, however writing the image at 4MB/sec is painfully slow…
Peter Grace
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12
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4 answers

External power for USB HDD

I want to plug my 2.5 USB external hard drive to the Raspberry Pi, however, there is not enough power on the USB ports for it to work. I've had some problems with a cheap USB AC-powered hub from eBay (apparently it tries to power to Pi through the…
joaocandre
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12
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1 answer

Install Atom editor on Raspberry Pi

Is ist possible to install Atom on a Raspberry Pi 2 running Ubuntu?
bsesic
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12
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2 answers

Why is my Pi running at 700MHz all the time?

My RasPi is configured to 900MHz overclock using raspi-config, but it keeps running at 700MHz even under load. I have found this answer already, and my system is also running with dynamic for info in /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_* do…
Arne
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12
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5 answers

connect to host port 22: Connection refused

I tried to use SSH to reach my Pi 3 ssh pi@192.168.100.3 but I get this message ssh: connect to host 192.168.100.3 port 22: Connection refused I install and install SSH but nothing has worked I tried to run sudo ufw status verbose but the…
test me
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5 answers

WiFi connection gets dropped quite often with Edimax EW-7711UTn

I am using a Model B 256MB Pi with an Edimax EW-7711UTn USB WiFi adaptor. After some hours, the WiFi connection begins to drop and be restarted. Until it stops working completely. This is what I see in /var/log/messages: Mar 9 20:39:29 raspberrypi…
Arne
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