Editing Compiling the kernel
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In order to modify the default kernel configuration, a few things need to be done. Assuming that the kernel has been built at least once, perform the following procedure to build a modified kernel for Maemo: | In order to modify the default kernel configuration, a few things need to be done. Assuming that the kernel has been built at least once, perform the following procedure to build a modified kernel for Maemo: | ||
- | '''1.''' Edit ~/maemo-kernel/kernel-source-diablo-2.6.21/debian/rules so that modifications may be done | + | '''1.''' Edit ~/maemo-kernel/kernel-source-diablo-2.6.21/debian/rules so that modifications may be done |
- | Make sure the following two lines are commented | + | Make sure the following two lines are commented or removed completely: |
* build-stamp section: tar jxf /usr/src/kernel-source-$(SOURCE_VERSION).tar.bz2 | * build-stamp section: tar jxf /usr/src/kernel-source-$(SOURCE_VERSION).tar.bz2 | ||
* clean section: rm -rf kernel-source-$(SOURCE_VERSION) | * clean section: rm -rf kernel-source-$(SOURCE_VERSION) | ||
- | '''2.''' Change file permissions for default config file | + | '''2.''' Change file permissions for default config file |
$ chmod a+w ~/maemo-kernel/kernel-source-diablo-2.6.21/kernel-source/arch/arm/configs/n770_defconfig | $ chmod a+w ~/maemo-kernel/kernel-source-diablo-2.6.21/kernel-source/arch/arm/configs/n770_defconfig | ||
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'''3.''' Make your modifications to ~/maemo_kernel/kernel-source-diablo-2.6.21/kernel-source/arch/arm/configs/n770_defconfig | '''3.''' Make your modifications to ~/maemo_kernel/kernel-source-diablo-2.6.21/kernel-source/arch/arm/configs/n770_defconfig | ||
- | '''4.''' Recompile the kernel image | + | '''4.''' Recompile the kernel image |
$ cd | $ cd | ||
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$cc -print-file-name=libncursesw.so | grep -q / | $cc -print-file-name=libncursesw.so | grep -q / | ||
if [ $? -eq 0 ]; then | if [ $? -eq 0 ]; then | ||
+ | |||
+ | =Deploying the Kernel Onto the Device= | ||
+ | |||
+ | The kernel kernel image is deployed onto the device by issuing the following command: | ||
+ | |||
+ | # flasher -f -k /scratchbox/users/<username>/targets/MAEMO_KERNEL/usr/share/osso/kernels/zImage-su-18-<yyyyww> | ||
+ | |||
+ | This command is executed outside Scratchbox, assuming that the flasher utility is in $PATH. | ||
+ | |||
+ | Or if you want to be safe, you can test boot it with: (without actually permanently modifying the kernel) | ||
+ | |||
+ | # flasher -l -b -k /scratchbox/users/<username>/targets/MAEMO_KERNEL/usr/share/osso/kernels/zImage-su-18-<yyyyww> | ||
+ | |||
+ | instead. | ||
+ | |||
+ | If that doesn't work (hangs indefinitely while trying to find device), try: | ||
+ | mount -t usbfs none /proc/bus/usb/ | ||
=Things to Remember When Working with Linux Kernel and Maemo= | =Things to Remember When Working with Linux Kernel and Maemo= | ||
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After this, flash the kernel image as instructed in Section 4. | After this, flash the kernel image as instructed in Section 4. | ||
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==Flash from Fiasco Image== | ==Flash from Fiasco Image== | ||
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4 | 4 | ||
- | There is | + | There is an other 4 Pin connector near on booth th n800 and n810. those are related to usb.(we did get some bus reset signals when playing with them) |
1 | 1 | ||
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Once your done with your cable, enable the R&D mode and set the serial console flag and connect via 8N1,115200. | Once your done with your cable, enable the R&D mode and set the serial console flag and connect via 8N1,115200. | ||
<pre> | <pre> | ||
- | $sudo ./flasher | + | $sudo ./flasher <del>enable-rd-mode </del>set-rd-flags=serial-console |
Password: | Password: | ||
Suitable USB device not found, waiting | Suitable USB device not found, waiting | ||
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- | [[Category: | + | [[Category:HowTos]] |
[[Category:Midgard wiki]] | [[Category:Midgard wiki]] |
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