Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

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1500 questions
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1 answer

How to eject USB device on Raspberry Pi (not just unmount)

Is there a way to actually send an eject to a USB device in Raspbian? As in: sudo udisks --eject /dev/sda In other Debian systems, this works fine. But on the Pi there seems to be complications. I have specific hardware that requires eject. So…
SpiRail
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2 answers

What is the best way to access a DRM flash sites like Hulu or YouTube?

What is the best way to access DRM Flash sites like Hulu or YouTube using the Raspberry? I have a Neuros (Ubuntu) box on the same network that runs these sites now using the Flash plug-in.
jcalfee314
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X11 forwarding with Xming over SSH?

I've got SSH access, and I have Xming installed, along with Xming fonts. I've configured PuTTY to forward x11 and told it to place the desktop at localhost:0, according to the instructions here. However, after I log in, and startx, I get ...…
zenbike
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3 answers

How to know how much battery power is remaining?

i got 2600 mAh powerbank for Pi and it manages to stay for some time for my use..But i want to avoid wrong shutdowns due to power failures so .. Which will be the best way to avoid power failure shutdown ... How to know that how much battery…
Rohit Karadkar
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6 answers

How would Raspberry Pi perform as a router/firewall?

I was thinking of replacing my current wireless router. I could either use an old laptop or a raspberry Pi. I am leaning towards the raspberry Pi due to its low power consumption. I was thinking of running IPFire. I would be using the basic router…
Nithin
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2 answers

How do I set up munin?

How do you set up a munin-node on the Raspberry Pi? Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A…
John La Rooy
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Is a super computer built from many RPis really practical or just a novelty?

This question is inspired by this article. Currently I spend a lot of time in R to analyze data. Some of the scripts I run in R could benefit from parallel computing in order to save time. Let's say I could build a barebones "real" computer for…
Dean MacGregor
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2 answers

Run a GUI without the desktop

I would like to run a web browser or a simple GUI without running the whole desktop. I want to use my Raspberry Pi as a simple web server, but still have a very simple GUI for controlling my 3-D printer with a few buttons and graphs. I don't want to…
TheCodeGeek
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2 answers

Is it possible to install a larger RAM chip on the Raspberry Pi?

Can I upgrade the Raspbery Pi's RAM from 512 MB to 1 GB or 2 GB? I can't build a cpp-netlib in GCC 4.6 or 4.8 because the build consumes all 512 MB. I realize I can cross-compile, but I'm wondering specifically if I can install a new RAM chip. …
Ross Rogers
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How to use a DS18B20 temperature sensor in my Pi?

I have a few DS18B20 temperature sensors. These are normally used in Arduino projects, but I don't see why not to use them with a Pi. There is a software called DigiTemp that seems to drive the device and I have compiled and installed it on the Pi.…
Tomas
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13
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3 answers

How can I see Raspberry Pi OS Version (32bit or 64 bit)?

In order to determine whether or not I have a 64bit OS installed, I have tried the following commands. The output of the commands do not tell me immediately if its a 32bit or 64bit OS. After looking it up, I know armv7 is a 32 bit architecture. But…
Human
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How do I avoid a temporary short circuit from destroying the PI?

I have a Pi 3b+ in a MIDI foot controller and part of the I/O is a pair of expression pedal sockets. After, ahem, getting the tip and sleeve round the wrong way, they are working correctly now. But, during testing, I disconnected one while the…
fret
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NFS Server: Not starting: portmapper is not running

I'm attempting to set up my Raspberry Pi with Wheezy Raspbian 2013-02-09 as an NFS server (client will be Ubuntu 12.10). I have followed these instructions. I can't start the service and get the following message: $ sudo service nfs-kernel-server…
d2le
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How can I mitigate the need for manual intervention with remotely deployed Raspberry Pis?

I'm working on a project that makes use of Raspberry Pis which will be deployed to several locations. They have special hardware attached to it for automation purposes, and run a web-service (that I wrote) to access the hardware. We will…
BobIsNotMyName
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2 answers

3d print host / arduino IDE setup/ 3d modeling

I have a reprap 3d printer, and I'm wanting to make it into an 'all in one' solution. I'd love to be able to mount my Rasp(arrives monday), a small screen, etc on the frame of the reprap. seeing as i have a working 3d printer, brackets to do so…
Rusty Eulberg
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