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embedded/linux
14.04.2011
15:22

Audio Podcast Embedded Linux Development

Pentacast of the Dresden CCC (Chaos Computer Club)

Two weeks ago a member of the C3D2 (Chaos Computer Club Dresden) asked me to talk about Embedded Linux Developement for their audio podcast ("pentacast").

 

The session is now online. It's in German and I must apologize that I didn't have an answer for everything. There is still so much to learn and I have so little time at the moment :-(

 

You want to here it? Here you go:

Alexander BiggaComments 0
Tags: embedded, linux
Views: 570

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embedded/linux
22.05.2009
13:05

Updating Xubuntu on Jetway J8F9 Nano-ITX Board

For half a year, I have a Jetway Nano-ITX Board (J8F9) running with Xubuntu 8.04 on a CF-card. This Board is very slow with an AMD Geode but 100% silent and consumes only about 3 Watt. It's the perfect internet client for my cafe.

 

One problem was the right setting for the display (quite cheap monitor with 1440x900 pixels). Before updating to 8.10 I had to edit the /etc/X11/xorg.conf manually and set:

 

 

Section "Device"
        Identifier    "Configured Video Device"
      #Option  "UseFBDev"  "true"
        Driver    "fbdev"
EndSection

 

 

Section "Screen"          
       Identifier   "Default Screen"          
       Monitor   "Configured Monitor"          
       Device  "Configured Video Device"          
       DefaultDepth  24          
       SubSection "Display"         
    # Virtual 1440 900          
       Modes  "1440x900" "1280x1024" "1024x768"          
      EndSubSection 
EndSection

 

 

The Xorg-Version is:

 

 

X.Org X Server 1.4.0.90

 

 

Release Date: 5 September 2007

 

 

X Protocol Version 11, Revision 0

 

 

Build Operating System: Linux Ubuntu (xorg-server 2:1.4.1~git20080131-1ubuntu9.

 

 

Current Operating System: Linux cafepc 2.6.24-19-generic #1 SMP Wed Aug 20 22:5

 

 

Build Date: 13 June 2008  01:08:21AM

 

 

 

After 5 minutes download and about 6 hours (!) packages replacements, the system was ready to reboot. But... it ends up in a kernel panic! And before booting, the install-tool deinstalled the old kernel. Very stupid.

 

So I removed the CF-card and modified the boot/grub/menu.lst. Xubunto forgot to add the initrd-line below the kernel:

 

 

initrd  /boot/initrd.img-2.6.27-14-generic

 

 

 

Alexander BiggaComments 0
Tags: linux, xubuntu, embedded, j8f9
Views: 845

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