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ARM/N900/Install/kexec

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Native installation is based on kexec. Default Maemo kernel however doesn't have support for it so it needs to be replaced first.  
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= Meego kexec install on N900 =
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Native installation is based on kexec. The default Maemo kernel, however, doesn't have support for, it so it needs to be replaced first.  
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You can either install the patched [http://maemo.org/packages/package_instance/view/fremantle_extras-devel_free_armel/kernel-modules-maemo/2.6.28-maemo18/ "kernel-maemo-flasher" package (version maemo18)]  from Maemo extras-devel section System or you can compile and install a fremantle kernel with following patches yourself.
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There is currently a bug related to the DSS2 driver which causes a flood of messages to the screen on a kexec'ed 2.6.33 kernel. Otherwise, things work.
== Building and installing your own kernel ==
== Building and installing your own kernel ==
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[http://wiki.maemo.org/Documentation/Maemo_5_Developer_Guide/Kernel_and_Debugging_Guide/Maemo_Kernel_Guide Maemo kernel guide]
[http://wiki.maemo.org/Documentation/Maemo_5_Developer_Guide/Kernel_and_Debugging_Guide/Maemo_Kernel_Guide Maemo kernel guide]
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Create a symbolic link on N900 so that existing kernel modules will be used with the new kernel.
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Create a symbolic link on N900, so that existing kernel modules will be used with the new kernel.
  cd /lib/modules
  cd /lib/modules
  ln -s 2.6.28-omap1 2.6.28-omap1-kexec-patched
  ln -s 2.6.28-omap1 2.6.28-omap1-kexec-patched
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== Installing MeeGo and tools ==
== Installing MeeGo and tools ==
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Install kexec-tools user space application from [http://repository.maemo.org/extras-testing/pool/fremantle/free/k/kexec-tools/kexec-tools_2.0.1.git-maemo3_armel.deb Maemo-extras] repository.
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Install kexec-tools user space application from the [http://repository.maemo.org/extras-testing/pool/fremantle/free/k/kexec-tools/kexec-tools_2.0.1.git-maemo3_armel.deb Maemo-extras] repository.
Install Meego image on external micro mmc card.
Install Meego image on external micro mmc card.
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  sudo moblin-image-writer <image-file>
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  sudo mic-image-writer <image-file>
== Running MeeGo ==
== Running MeeGo ==
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  sync
  sync
  kexec -e
  kexec -e
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[[Category:N900]]

Latest revision as of 13:19, 17 March 2011

Contents

Meego kexec install on N900

Native installation is based on kexec. The default Maemo kernel, however, doesn't have support for, it so it needs to be replaced first.

There is currently a bug related to the DSS2 driver which causes a flood of messages to the screen on a kexec'ed 2.6.33 kernel. Otherwise, things work.

Building and installing your own kernel

Instructions for compiling Maemo kernel can be found from: Maemo kernel guide

Create a symbolic link on N900, so that existing kernel modules will be used with the new kernel. 

cd /lib/modules
ln -s 2.6.28-omap1 2.6.28-omap1-kexec-patched

Flash the patched kernel: 

flasher -f -k zImage-kexec-patched

Installing MeeGo and tools

Install kexec-tools user space application from the Maemo-extras repository.

Install Meego image on external micro mmc card. 

sudo mic-image-writer <image-file>

Running MeeGo

Connect external micro mmc card.

Run kexec 

kexec -l /boot/zImage-2.6.33 --command-line="init=/sbin/init rootwait root=/dev/mmcblk0p1 rw console=ttyS2,115200n8"
sync
kexec -e
Retrieved from "http://wiki.meego.com/ARM/N900/Install/kexec"
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