1
vote
2answers
114 views

Using a configuration management tool to configure nodes without ssh

I'd like to manage the configuration of several devices running embedded Linux. There is a web server in my environment which has a SOAP interface I can use to get/set all the parameters of each of ...
1
vote
1answer
31 views

Qdisc pfifo_fast in linux and IP Precedence

Im using a embedded Linux distribution for a router system. My goal is to prioritize some traffic with minimum delay. I have a WAN interface with a default pfifo_fast qdisc attached to it. I have read ...
0
votes
0answers
30 views

Queuing disciplines are per-interface, what qos is handle with interfaces using same device?

I have read about queuing disciplines here http://lartc.org/. I understand that for instance band 0 of pfifo policy is prioritized over band 2 within same qdisc, but what happen when i have ppp0 and ...
0
votes
1answer
55 views

Ssh without password to Embedded read only device

I want to be able to retrieve values from an embedded device every minute. Currently I have a script that does this over ssh but I have to type in the password for the embedded device every time I ...
0
votes
1answer
39 views

Manipulating root files in images without being root?

In our environment we have linux developer PCs and several embedded boards. The embedded boards are booted from an image. Those image files should be created/modified on the developer PCs. Mounting is ...
0
votes
1answer
42 views

mysql with dom and sd cards loss data

I have a problem with a MySQL application that write on a SD card or a Compact Flash. After a data loss (a power failure, for example), if I try to retrieve the data of my db, it fails and the error ...
11
votes
2answers
1k views

Making SD card corruption-proof

My embedded linux device uses an SD card for saving certain diagnostics data, far too copious for internal flash. The problem is if the device is switched off unexpectedly, the filesystem (FAT32) on ...
1
vote
3answers
273 views

Compact Flash mounted Read Only

I have a board, running linux (RedHat, kernel: 2.4.32). The board has been up and running since long time. However suddenly, some errors are being observed in the logs, and the Compact Flash (present ...
2
votes
1answer
123 views

44pin industrial flash ide on embeded debian freezes after an indefinite period of time [closed]

On an embedded system I have, using a 44 pin transcend industrial flash, after a while I will notice that I cannot read any files or write to the disk. I am using the 3.2.0.* BPO i686 SMP PAE kernel. ...
0
votes
1answer
489 views

Setting up access to FTP server and SSH server using hostapd access point on embedded system

I've recently designed the circuit board for an embedded ARM system, and the next step is to work on the software to run on this hardware. I've generated the root file system using Buildroot. I am ...
4
votes
2answers
4k views

Prevent data corruption on ext4/Linux drive on power loss

I have some embedded boards running American Megatrends bios with embedded linux as the OS. The problem I have is that the industrial flash ide's will be corrupted on power loss. I have them ...
2
votes
1answer
303 views

Embedded device for deploying network probes

Our environment has a multitude of remote subnets that we monitor by deploying Linux-based probes running various network monitoring software and other handy tools. Currently we're using surplus-ed ...
1
vote
2answers
782 views

Wiping out user and/or root password in embedded linux

We have a security camera system running an embedded linux. It boots with Lilo as a bootloader and has no tty access once booted. I don't know any username either. SSH/22 is open, but I don't think ...
0
votes
1answer
252 views

ionice or chrt for Bonnie benchmark

I am running Bonnie benchmark on an embedded device and I am getting variable results for every run. I am contemplating using ionice and / or chrt to get around it. Can you suggest which option is ...
1
vote
1answer
285 views

embedded linux serial terminal

I have built a custom embedded system using debian 6.0. using /etc/inittab i have made several (8) processes running on different /dev/ttyX terminals, which i can switch between using Alt+FX key ...
0
votes
3answers
59 views

What could this error mean?

I am having trouble with embedded linux system which keeps outputting this error: libdirac_encoder.so.0: cannot open shared object file: No such file or directory' Any idea what this error means? ...
3
votes
1answer
3k views

Our embedded linux system won't recognize a USB Device if it is plugged in before powerup. Suggestions?

We are developing on a small embedded device. This device us a gumstix overo board running OpenEmbedded linux. We have our development almost completely done, and have run into the strangest of bugs ...
0
votes
3answers
358 views

Low-power/cost embedded device hardware

I'm new to the embedded device world, but I've got an idea I'd like to try to implement. I found an integrated circuit that will give me the input I want, now I need to find a device to log the data ...
2
votes
6answers
585 views

Browser-based Operating System

I have a bunch of touchscreen machines that I want to display a webpage on and have users interact with the webpage via the touchscreen. Right now, this is done with a full-blown OS with a browser set ...
1
vote
6answers
1k views

Is there a free-embedded SSH solution?

I'm working for an important company which has some severe network policies. I'd like to connect from my work, to my home linux server (mainly because it allows me to monitor my home-automated ...
2
votes
2answers
1k views

What is the best linux file system and fs configuration for embedded systems

After experiencing some crash related file system outages (requiring manual fsck and repair, we are looking for the optimum file system and fs config for an embedded linux with HDD or SDD mass ...
1
vote
2answers
2k views

Problem IP Forwarding is Dropping Rx Packets on Embedded Linux Network

I have a pc and two embedded linux based systems that I am trying to chain together through IP forwarding. They span two separate local networks. Both networks are wired. I can ping 10.10.10.6 from ...
0
votes
2answers
2k views

What linux module is at fault to generate these Oops?

I am getting some Oops errors after overclocking my processor ARM9 from 266 Mhz to 288 Mhz. These errors comes sometimes when I issue poweroff command. The other scenario is when I left it idle for ...
2
votes
2answers
2k views

Emulate EWF effects on Linux

Recently, for an embedded project, I was asked to emulate on Linux the effects of the Enhanced Write Filter (EWF) of Windows XP Embedded. In particular, I need a sort of EWF for: avoiding to write ...
6
votes
9answers
2k views

Recommended embedded linux device for light server and learning [closed]

Imagine the following situation: I want to have a tiny, light server that is able to run some services like basic Web, ftp, printing servers and pluging hard drives via usb. I would like to use it as ...