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23
votes
11answers
13k views

Portable system for syncing files (like DropBox)?

Currently, there in no version of Dropbox for ARM Linux variants, there is an article here https://www.dropbox.com/votebox/358/linux-arm-support I've use Cubby, Google Drive, DropBox, Wuala, ...
7
votes
1answer
7k views

Is this an OK way to transfer my 16GB SD card to an 8GB SD card (simple dd)?

FWIW, this is running on an Arch Linux ARM installation booting off a SATA, where I plugged in the SD card from the RPi. The original 16GB card was imaged from Windows using a Debian image. I had used ...
19
votes
3answers
1k views

Is Raspberry Pi resistant to nuclear radiation?

I've had this wacky idea to turn my Raspberry Pi into an autonomous Geiger counter that would log the decay rate at various high-radiation sites such as Chernobyl Exclusion Zone or the surroundings of ...
11
votes
2answers
11k views

How do I mount the .img files under Ubuntu?

I just downloaded the Debian and Arch Linux files and I would like to mount before I burn into the SD card. How can I mount the img? I tried to mount but I'm getting the following error: sudo mount ...
41
votes
4answers
155k views

Why is my @ symbol not working?

I've never used linux before, so this may be a problem with that, but I'm trying to simply SSH into my friends webserver using the info he gave me. I looked up that the linux command to ssh is ssh ...
3
votes
1answer
762 views

How do I create a customized Debian?

I would like to have a command line based OS, I don't want to use a GUI, in my case it would be enough to just have a command line based OS, so the system can be faster and tinier. How can I create ...
22
votes
3answers
5k views

Is my Raspi okay sitting on a magnet?

I have a big magnetic sheet that my Raspberry Pi is sitting on. It seems fine, but are there any dangers?
35
votes
2answers
21k views

What is the power on state of the GPIOs?

What is the state of the GPIOs when power is applied? eg High, Low, Hi-Z? Also does any OS change the state of any GPIOs when it loads? Hopefully not.
6
votes
1answer
533 views

Are there any third-party sources for compiled packages?

My previous question does a good job of explaining how to find software from official sources. What about third-party sources? Are there any sites that have specialized in providing compiled ...
5
votes
1answer
3k views

Starting NTPD hangs when booting

I have a Debian downloaded from http://www.raspberrypi.org/. When I boot it up, it hangs when staring NTPD, and takes a few minutes to get to the login. A message shows up after this showing its IP ...
12
votes
2answers
952 views

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 ...
13
votes
2answers
17k views

How do I expand a raw disk image?

The official images supplied are raw disk images, which could have been created using dd. How do I make an image bigger? I'm not interested in repartitioning said image as that has already been ...
22
votes
6answers
8k views

Has anyone got a Text to Speech engine installed?

Just wondering whether anyone has got a Text to Speech engine installed on the Pi?It would make a great addition to almost any programming project to make it talk to the user!
23
votes
2answers
16k views

How can I control a 12V motor? [duplicate]

I would like to control (switch) some 12V DC motors using the GPIO pins. I do not have (or want to use) an expansion board. Nevertheless, I think this should be possible using a transistor switch (and ...
10
votes
3answers
13k views

Why is `wget` hanging?

I have raspbmc (Debian) installed on my Raspberry Pi and it seems to not be able to download anything? wget seems to stall yet it can ping! The same happens for apt-get Resolving google.com... 173....
21
votes
2answers
9k views

Can I install the Ruby Version Manager?

Can I install the Ruby Version Manager (RVM) on my Raspberry Pi?
5
votes
2answers
327 views

Package browser to search for compiled software pre-install?

For any of the OSes that are compatible with the Raspberry Pi, are there any searchable databases that list the currently available packages that have been compiled for the OS? I'm thinking of ...
9
votes
1answer
764 views

Would it be possible to build an Arch distribution that used Hard Float support and/or optimised the binaries for ARMv6?

According to the Wiki, the Arch image doesn't use Hard Float support and I'm pretty sure it uses the ARMv5 instruction set. Would it be possible to build a distribution that used Hard Float and ARMv6?
15
votes
4answers
13k views

Why does Raspbmc hang randomly?

My Raspberry Pi, running Raspbmc, hangs randomly while navigating in the menu/settings. Any hints what I could check to find out what's happening when it hangs?
10
votes
1answer
756 views

Does a two-port charger at 1.5A provide 750mA from each port?

So, I'm looking to buy this energizer charger: http://www.amazon.com/Energizer-Dual-Universal-Charger-Pc2-wa/dp/B004YZI1VW/ref=cm_cr_pr_product_top The 1 port product has 1A the two port product has ...
6
votes
3answers
2k views

Would E4rat or Ureadahead speed up the boot process from the SD Card?

I have Arch Linux (ARM). Will it boot faster on my SD card if I use E4rat to pre-load the boot process? Since it's flash based, will it have any difference in boot time? Is there a port to ARM for ...
3
votes
0answers
2k views

Why is there no 'www-data' group by default? [closed]

I just tried to install (and then start) Apache2 HTTPD, but was greeted with the error: apache2: bad group name 'www-data' I quickly checked my /etc/group, and there is no www-data group. I always ...
24
votes
1answer
26k views

How can I set up a print server?

I would like to use my Pi as a print server. My printer is supported by the computer I want to use as a print server. Is it fast enough and has enough for this? How do I setup a print server with the ...
6
votes
1answer
15k views

Forcing DHCP to release and renew and use a reservation?

I am able to ssh into my new RPi. One of the things I like to do to my infrastructure devices is to go ahead and convert their DHCP assignment to a reservation. My router is a CradlePoint Firmware ...
11
votes
3answers
2k views

Using the Pi as a kiosk OR how to get VNC on Pi

I would like to run the Pi as a kiosk that many people can use. The Pi is not quite powerful enough to run the application that I would like. Is there a way to use the Pi just as a display and to ...
8
votes
2answers
15k views

How to mount the EXT4 partition on the SD card from within VirtualBox

I have an SD Card reader built into my Lenovo laptop and I've installed VirtualBox and Debian squeeze to a VM but I can't seem to view the EXT4 partition, or any partition for that matter, on the SD ...
5
votes
3answers
13k views

How do I change the IP settings by mounting the SD card in another computer?

I'm away from a network and unable to use my RPi. I've got a laptop with a SD card reader, would it be possible to mount the SD card in the laptop and configure the ethernet interface on the Pi with a ...
6
votes
2answers
1k views

Kernel panic immediately on a fresh debian SD card

My Pi was working for a while while I tried to set up a wifi dongle, I started getting kernel panics. I thought I might have messed something up so put in a fresh SD card with a fresh Debian image. I ...
14
votes
3answers
4k views

Rebooting the system

I've noticed that rebooting my RPi doesn't work. It just halts and doesn't come back up. To get it back I have to disconnect and reconnect the power. I'm rebooting using the simple command $ sudo ...
31
votes
3answers
35k views

Running Headless - checking boot screen messages

It's fairly easy now to run headless from scratch with a Raspberry Pi. One area that might have an issue though is debugging issues with devices that have been added to the Raspberry Pi. Often you ...
5
votes
1answer
10k views

What would a default xorg.conf look like?

I'm trying to setup Xdmx, which isn't easy. I'm having issues with xinerama and differing colour depths, which can be rectified by change xorg.conf on each of the machines. Of course, these days xorg....
5
votes
0answers
285 views

Backup Image of SD Card [duplicate]

Possible Duplicate: How do I backup my Raspberry Pi? While messing around with my RPi it likely that I'm going to want to revert to a previous position (but not revertingall the way back to the ...
13
votes
3answers
11k views

How do I get my bluetooth keyboard to pair automatically before I log in?

I asked how to install bluetooth, so I can use an existing mouse and keyboard. I was able to get that to work, but the keyboard ceases to function when the GUI is logged out. That means that I still ...
26
votes
4answers
11k views

What qualities should I look for in a small, 7“ or 10” monitor?

Hi, which small small and portable monitors would you suggest to combine with Raspberry Pi. As Raspberry Pi is part of huge range of different project please suggest which would be best in each of ...
12
votes
4answers
57k views

How do I get the data from the serial port?

I have a Ciseco XRF radio module and a Slice of Pi expansion board. Using the program 'screen' works fine; I can see data being transmitted to the XRF module. How do I get the data from the serial ...
13
votes
2answers
30k views

How do I install Bluetooth for my mouse and keyboard?

Can I get step by step directions for installing a generic Bluetooth dongle, so that I can use an existing bluetooth mouse and keyboard? This answer to the question How can I use a bluetooth mouse ...
46
votes
5answers
126k views

How do I install an OS image onto an SD card?

I have just ordered my Raspberry Pi, and I want to prepare my SD card. How do I install an OS image onto an SD card?
22
votes
1answer
519 views

Do I need to buy an SD card with an OS preloaded on it?

I finally got accepted to place a pre-order, and one option to "add" is the OS on the SD card preloaded. Is this needed, or can I download the OS elsewhere? Could I just put on my own version of Linux ...
14
votes
2answers
10k views

Can I use the Raspberry Pi as a second monitor?

I have a desktop running Ubuntu 10.04 (which I should upgrade - I know!), which uses GDM. It currently has 2 screens installed, which are configured using xorg.conf. It includes using xinerama to act ...
23
votes
2answers
3k views

Playstation Emulation

Does anyone know if it is possible to get the PCSXR (Playstation 1) emulator to work on the Raspberry Pi? On both Debian Squeeze and Wheezy, running any game on it with the xvideo plugin just gives. ...
10
votes
3answers
12k views

Adding a second Ethernet port

I would like to start a "Firewall" project. This will require intercepting data on the network processing it and passing it on it way. Has anyone tried (or theorised) how to add a second Ethernet ...
7
votes
1answer
5k views

How do I install lighttpd (lighty) on Debian “squeeze”?

How do I install lighttpd on my Raspberry Pi? I tried running sudo apt-get install lighttpd, which works fine on a regular Debian 'squeeze' installation, but on a Raspberry Pi I get the following ...
24
votes
1answer
6k views

How do I turn on Level 2 (L2) cache?

It has been suggested to me that the L2 cache is turned off by default on the Pi, and that turning it on could improve CPU performance (probably at the expense of GPU performance). I'm keen to explore ...
6
votes
2answers
2k views

Can I use a different filesystem type for the boot partition?

I downloaded the Archlinux arm .img file for the Raspberry Pi and installed it onto my SD card. Is it possible to use a different partition instead of FAT16 that is in the .img? Or will the GPU not ...
15
votes
3answers
6k views

Pi as a RFID Reader

I have a need for a quick and dirty UHF RFID reader. I'm very green when it comes to electronics and have a couple questions: Has someone already done (documented) this? Can a UHF antenna be ...
13
votes
2answers
5k views

Why does python run relatively slowly?

I've been benchmarking the Pi on some of my simulation codes, relative to a couple of laptops I have. My codes tend to be floating point intensive, so I've been using Raspbian (which turns out to be ...
3
votes
0answers
117 views

Are there step by step tutorials for beginners on things like setting up bluetooth or SSH? [duplicate]

Possible Duplicate: Bluetooth keyboard/mouse for surfing internet on my TV Is there a step by step for using a bluetooth keyboard and mouse with RasPi? Or SSH? I've seen the forum posts ...
10
votes
2answers
5k views

Audio over HDMI - hello_audio.bin works but not aplay

I'm having problems getting audio over HDMI working correctly (running ArchARM). I have in my /boot/config.txt: hdmi_drive=2 I compiled hello_audio.bin and ran it with 0 and 1 as args, both work (...
18
votes
3answers
5k views

Can I power a USB SSD/HDD?

I read the power supply should have 0.7A and that RPi by itself requires around 0.4A-0.5A. So, what if I want to connect an external USB SSD/HDD? External SSD can require 0.5A (and maybe more), so ...
7
votes
2answers
2k views

Is it a good idea to mount /var in memory?

Re this answer: https://raspberrypi.stackexchange.com/a/867/339 It is suggested that /var be mounted in memory, so to avoid causing your root partition to fill accidentally. I've got a couple of ...

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