Zaurus meets Werewolf 
Browsing the Net I recently came across the fedora arm wiki. Googling a bit further, I couldn't find anyone running fedora on the Zaurus. So I investigated the project a bit, and started some experiments in qemu.

This was a few days ago, and now I have fedora 8 (Werewolf) running on my Zaurus SL-C3100 natively. Quite nice actually. I'm using my Poky 2.6.23 kernel and the base root file system with some extras from the huge repository.

So with fedora 8 another choice can be added to the long list of possible Operating Systems that can be used by the Zaurus community.

Not bad at all!

UPDATE: Some of you asked me if I would be willing to share the image so it can be downloaded here. Since I'm running out of hosting space, that's currently not possible. I'm trying to find someone who's willing to donate some space

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Android image for Zaurus SL-C1000 (Akita) uploaded 
I finally uploaded the Akita image for the latest version of Android. For installation instructions see the link in the menu on the left. Unfortunately I had to replace the previous M3-RC37 release because of lack of disk space.

Please report any problems, and of course any reports on successful installation are welcome as well ;-)


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Android image for Zaurus SL-C1000 (Akita)... 
I finally took some time today to build an Android image for the Zaurus SL-C1000 (Akita). But, I hate to bring the news to you, when I was ready to test it, I found out I lost my SD card. I don't know where I left it, but it's gone. Bummer!!

It's too late now, I have to leave it for later. Sorry to keep you all waiting so long. I'll get me a new card tomorrow, do the testing, and hope to get the image up as soon as possible.

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New Android image uploaded 
New Android image is uploaded (android-root.tar.gz). Same installation instructions apply, so please see the instructions in the previous post. Strange thing for me when testing the image was after startup the screen stays black. When pressing any key the boot process continues. I don't know why this is. When time permits I'll try to fix this.

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New Android image is coming up 
As mentioned in my previous post, some of you reported having problems using my Android M5-RC14 image. I've looked into it, and although I still don't know what the problem was, I have a working version again.

I'm currently unable to upload a new version, so it will have to wait until tonight. Sorry for the inconvenience!

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Android SDK update (M5-RC15) 
Just after I released the M5-RC14 images for the Zaurus SL-C3x00 Google updates their SDK... I guess that means back to work creating a new image as well
:-(

UPDATE: There are problems reported using the M5-RC14 release. I'm currently investigating the issues. More on this later.

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Latest Android m5-rc14 Installation Image for Zaurus SL-C3x00 
Tested on my SL-C3100, this is a small bootable Poky 2.6.23 kernel with a copy of the Android OS from the SDK (qemu) emulator.

Installation on the Zaurus is done in the usual way:

1. Download the following files and copy them to a SD card.
  • zImage.bin
  • updater.sh
  • gnu-tar
  • android-root.tar.gz

  • 2. Remove battery and power adapter cable
    3. Wait for 5 seconds
    4. Replace battery, close and lock battery cover
    5. Attach power adapter cable
    6. Keep OK button pressed while pressing on/off switch
    7. From the Japanese menu, choose option 4 (Update), then 2 (SD) and finally Y

    Flashing starts, and you are asked if you want to flash the kernel, if you want the microdrive to be formatted and if you want the root filesystem to be installed.
    Accept all questions answering them with y

    After flashing is complete, the machine is rebooted. Login with root and type /start to start Android.
    Have fun, and let me know if you like it ;-)

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    Band Of Horses 


    Last Saturday The Band Of Horses played in Paradiso in Amsterdam. I like their music, a beautiful mixture of sound, with the astonishing high pitch voice of Ben Bridwell. We went with the four of us. Too bad I was the only one digging their music I guess, since the others all left early. Maybe it was because of the wall of sound, maybe it was their lack of taste. Doesn't matter, I had a great time :-)

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    Android m5-rc14 working on Zaurus SL-C3100! 
    I finally did it, the latest Android SDK emulator image (m5-rc14) is finally ported to my Zaurus SL-C3100!

    After hours of spitting through traces trying to resolve all errors and searching for differences between the emulator and the Zaurus my conclusion was that the main difference was the way the framebuffer was used. Android uses a panning mechanism (page flipping) for screen updates, and this is currently unsupported in the default pxa2xx framebuffer code of the linux 2.6.23 kernel.

    So I tried to add panning support to the framebuffer code, and with success! It needs some debugging though, because there are still some minor problems with the screen updates, but hey, the saga continues, Android on the Zaurus still seems to be a perfect match!

    A few quick shots taken with my camera:
  • Android booting
  • The Android desktop
  • The great map program (Still don't know how it located me)
  • The web browser




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    Tracing Android 
    I've build a custom kernel for m5-rc14 and set up an image to run on my Zaurus. On startup, the system ends up with a black screen, just like others have already reported on various places.

    So I fiddled a bit with the Android emulator tonight. I thought it might be interesting to see what the differences are between running Android on the emulator and on the Zaurus.

    I modified ramdisk.img a bit, so Android doesn't starts up automatically in the emulator and I've also added strace to the image, which can be found in the root(/) directory. The emulator can be started using the modified image by running:
    emulator -debug-kernel -console -ramdisk cortez.img

    Now the emulator boots up and ends with a prompt. At that point, start Android by running:
    # strace -ff -F -tt -s 200 -o /data/log-zygote.txt /system/bin/app_process -Xzygote /system/bin --zygote &
    # strace -ff -F -tt -s 200 -o /data/log-runtime.txt /system/bin/runtime &

    This creates lots of log files, which now can be compared to the Zaurus log files. My logs can be found here


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