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kerneldev [2012/06/28 19:31] – marvin24kerneldev [2012/07/06 14:32] – [3.0.x Kernel series] turbooster
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 ===== 3.0.x Kernel series ===== ===== 3.0.x Kernel series =====
 TODO TODO
 +=== From marvin24s git ===
 To build the kernel native on the ac100, do the following: To build the kernel native on the ac100, do the following:
 <code> <code>
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 should be sufficient. Make sure you used paz00_defconfig, because this kernel seems to ignore the parameters submitted by the bootloader. should be sufficient. Make sure you used paz00_defconfig, because this kernel seems to ignore the parameters submitted by the bootloader.
  
 +=== Stock Ubuntu 12.04 Kernel ===
 +
 +Step by step: Recompiling the Ubuntu stock kernel natively (for example to patch it) coming from a stock Ubuntu 12.04 install.
 +As of writing the kernel-version is **3.0.27** and will have to be replaced when another kernel comes out/is used. The created files will be copied to a safe place (/home/turbo/Downloads/ in my case)
 +
 +Become root for all steps
 +<code>sudo su</code>
 +Install dependencies for the kernel and build it:
 +<code>
 +apt-get build-dep linux-ac100
 +apt-get install build-essential lzop
 +cd /usr/src/
 +apt-get source linux-ac100
 +cd linux-ac100-3.0.27/
 +</code>
 +Now if you want the original Ubuntu config do 
 +<code>cp /boot/config-$(uname -r) .config</code>
 +If you want the standrad ac100 config instead do:
 +<code>make paz00_defconfig</code>
 +Apply patches if wanted. In this example I use gordans overclocking patches from [[http://www.altechnative.net/2011/12/31/overclocking-the-toshiba-ac100/|his site]].
 +<code>patch -p1 < tegra_common.patch
 +patch -p1 < tegra_1200.patch</code>
 +(Note that one patch didn't apply cleanly, but the errors were pretty obvious and easy to fix manually.)
 +
 +<code>
 +make -j3 INSTALL_MOD_STRIP=1 zImage modules
 +make -j3 modules_install
 +cp arm/boot/zImage /home/turbo/Downloads/zImage1200-3.0.27
 +cp .config /boot/config-3.0.27
 +</code>
 +
 +Get the bootimg.cfg
 +<code>cd /boot/bootimg.cfg /home/turbo/Downloads/</code>
 +Adjust the bootimg.cfg to your needs. Most importantly giving it a cool greeting text of course!
 +
 +Create the initrd
 +<code>
 +cp .config /boot/config-3.0.27
 +update-initramfs -k 3.0.27 -c
 +cp /boot/initrd.img-3.0.27 /home/turbo/Downloads/initrd1200-3.0.27.img
 +</code>
 +
 +Create the final image
 +<code>cd /home/turbo/Downloads/
 +abootimg --create part6_1200-3.0.27.img -f bootimg.cfg -k zImage1200-3.0.27 -r initrd1200-3.0.27.img</code>
 +In my case (10K, Android 2.2) the boot partition is partition 6 as seen by nvflash and /dev/mmcblk0p4 as seen from Ubuntu. Make sure you flash to the right partition, this means: `cat /proc/partitions` has to show the partition as 8.0 MiB and `sudo abootimg -i /dev/mmcblk0p4` has to show "Android boot Image" in the first line.
 +
 +Double-check and create a backup of the boot partition:
 +<code>dd if=/dev/mmcblk0p4 of=/home/turbo/Downloads/part6-$(uname -r).img</code>
 +Size of the original is 8388608 aka 8.0M. This backup wont help you if it's //on// your ac100, so:
 +Be sure to copy this image somewhere else.
 +
 +Be sure to copy this image somewhere else. Really.
 +
 +Flash the image
 +<code>dd if=/home/turbo/Downloads/part6_1200-3.0.27.img of=/dev/mmcblk0p4</code>
  
 +Reboot.
  
 ==== Kernel Debugging ==== ==== Kernel Debugging ====
kerneldev.txt · Last modified: 2014/06/21 18:57 by santox