Difference between revisions of "Linux Kernel for CM-X300"
(New page: == Overview == Linux kernel for CM-X300 modules provides support for on-board peripherals. Current support coverage is specified at [http://www.compulab.co.il/x300cm/html/x300-os-support....) |
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Now, if you boot CM-X300 with newly created kernel image and with networked root filesysem at {{filename|/home/development/cm-x300/rootfs/}} the system will be able to properly load kernel modules and you avoid modules versioning problems. | Now, if you boot CM-X300 with newly created kernel image and with networked root filesysem at {{filename|/home/development/cm-x300/rootfs/}} the system will be able to properly load kernel modules and you avoid modules versioning problems. | ||
| + | |||
| + | === Creating Linux kernel JFFS2 image=== | ||
| + | |||
| + | The Linux kernel should be stored in the CM-X300 NAND flash as a JFFS2 image. | ||
| + | |||
| + | <pre> | ||
| + | mkdir /tmp/cm-x300-kernel/ | ||
| + | cp /home/development/cm-x300/kernel/linux-2.6.26/arch/arm/boot/uImage | ||
| + | mkfs.jffs2 --no-cleanmarkers --pad --eraseblock=0x20000 --root=/tmp/cm-x300-kernel --output=/path/to/cm-x300-kernel.jffs2 | ||
| + | </pre> | ||
== See also == | == See also == | ||
Revision as of 14:30, 18 August 2008
Contents
Overview
Linux kernel for CM-X300 modules provides support for on-board peripherals. Current support coverage is specified at O/S support coverage map page. CompuLab provides ready-to-run binary kernel images, and source code of the modifications and additions made to the Linux kernel to work properly with CM-X300 modules.
Building Linux kernel for CM-X300
mkdir /home/development/cm-x300/kernel
cd /home/development/cm-x300/kernel
wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.26.tar.bz2
tar xjf linux-2.6.26.tar.bz2
cd linux-2.6.26
cat /path/to/x300-linux/kernel/linux-2.6.26-cm-x300.patch | patch -p1
export ARCH=arm
export CROSS_COMPILE=arm-linux-
make cm_x300_defconfig
make menuconfig
make && make uImage \
INSTALL_MOD_PATH=/home/development/cm-x300/rootfs make modules_install
In the above example, the Linux kernel image (uImage) will be created in /home/development/cm-x300/kernel/linux-2.6.26/arch/arm/boot, and the loadable kernel modules will be installed into the /home/development/cm-x300/rootfs/lib/modules directory.
Now, if you boot CM-X300 with newly created kernel image and with networked root filesysem at /home/development/cm-x300/rootfs/ the system will be able to properly load kernel modules and you avoid modules versioning problems.
Creating Linux kernel JFFS2 image
The Linux kernel should be stored in the CM-X300 NAND flash as a JFFS2 image.
mkdir /tmp/cm-x300-kernel/ cp /home/development/cm-x300/kernel/linux-2.6.26/arch/arm/boot/uImage mkfs.jffs2 --no-cleanmarkers --pad --eraseblock=0x20000 --root=/tmp/cm-x300-kernel --output=/path/to/cm-x300-kernel.jffs2
