Difference between revisions of "User:B-flat"

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(Introduction)
 
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I'll use this page to share my experiencs on successes and obstacles I find. Feedback always appreciated.
 
I'll use this page to share my experiencs on successes and obstacles I find. Feedback always appreciated.
  
==My Build system==
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Building the image and kernel is not yet successful!!
I am running a VM-ware player image with Gentoo Linux placed on a USB hostpowered disc. This does not give highest possible performance, but it allows for a lot of mobility and portability. Peripherals like a (micro)SD-card reader adapter for USB works fine, but the built-in one in my laptop is not available within the VM-ware player.
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[[buildingImage|Building the Image]]
  
On my Gentoo linux I set-up the build environment according to the instructions for the [http://www.gumstix.net/Software/view/Software-Overo/Setting-up-a-build-environment/111.html overo build system].
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[[booting|Booting from the SD card]]
  
The reason for choosing the open-embedded as for Overo is that the Verdex buildsystem has not been updated for approx. a year now and I wanted the latest recipes to get e.g. Open JDK.
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[[javaAwt|Getting Java and AWT to work]]
 
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== Building an Rootfs image and a kernel==
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First I checked out a copy of ([http://www.gumstix.net/Software/view/Getting-started/Setting-up-a-build-environment/111.html instructions]) the Verdex build system. So the home directory now has:
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~/gumstix/gusmtix-oe/
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~/overo-oe/
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Then, I copied the Verdex image recipes to the user.collection.
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mkdir -p ~/overo-oe/user.collection/images/
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cp ~/gumstix/gumstix-oe/com.gumstix.collection/packages/images/* ~/overo-oe/user.collection/images/
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Once copied, I ran:
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bitbake gumstix-basic-image
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Resulting in a failure and Bitbake reporting that nothing provides some package and exited without building anything. I then copied the recipes for those packages and ran bitbake again. At the end I had copied:
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task-base-gumstix
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motd
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uisp
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version
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www-content
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==Problems with No GNU_HASH fount in elf ==
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Baking the gumstix-basic-image the process stopped with the I2C package and the log information boiled down to the error message: No GNU_HASH fount in elf for the i2c.
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Asking for hints in the gumstix.users mailing list helped alot. Thanks Koen and Philip (archive [http://www.nabble.com/No-GNU_HASH-found-in-elf-binary-td23072960.html here]) and I could find the problem in the i2c.bb file:
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The task do_compile ignored the LDFLAGS set by the oe/autoconf tools.
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do_compile () {
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        ${CC} -o i2c *.c
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}
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Adding ${LDFLAGS} to the line for compiling solved this problem:
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do_compile () {
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        ${CC} -o i2c *.c ${LDFLAGS}
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}
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Then the same problem emerged in the pxaregs recipes and the same solution applied. This resulted in a completed bake.
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==Booting the gumstix from a micro SD card==
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Currently, I boot the gumstix from a 2GB micro SD card. NOTE that 4GB SDHC does work to boot from. If booting from flash, the card is found and read/write works fine even with 4GB. Probably the U-boot version does not support SDHC cards.
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These [http://www.gumstix.net/User/view/User-how-to-s/Booting-from-microSD/SD/MMC/110.html instructions] for setting up the MicroSD card works fine for me.
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Current status is that the boot is started OK, but the boot sequence hangs at I2C /dev ... something. :(
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When I have time next i will troubleshoot by reviewing kernel config and init scripts. Any hints?
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==Coming challenges==
 
==Coming challenges==
 
Setting up a bluetooth PAN from verdex to my gentoo to easily deploy new builds of my java application
 
Setting up a bluetooth PAN from verdex to my gentoo to easily deploy new builds of my java application
  
setting up working java that have GUI and uses the touch screen.
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setting up a continuous integration environment
  
finding and building a lib for java serial
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==Bugs that I have encountered ==
  
setting up a continuous integration environment
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Bitbake failed due to DBus problem. [http://www.nabble.com/Re%3A-Build-error-dbus-native-1.0.1-p23905434.html| This solution might do the trick.]

Latest revision as of 05:43, 21 July 2009

Introduction

I am working on settin up my Verdex Pro 400-Bt with LCD to run java with the touch screen and a simple graphical gui.

I'll use this page to share my experiencs on successes and obstacles I find. Feedback always appreciated.

Building the image and kernel is not yet successful!! Building the Image

Booting from the SD card

Getting Java and AWT to work

Coming challenges

Setting up a bluetooth PAN from verdex to my gentoo to easily deploy new builds of my java application

setting up a continuous integration environment

Bugs that I have encountered

Bitbake failed due to DBus problem. This solution might do the trick.