Difference between revisions of "Rock/Booting Linux"
< Rock
(→Get the source code) |
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=== Requirement === | === Requirement === | ||
| − | * a radxa rock board( | + | |
| + | * a radxa rock board (check your [[Rock/hardware revision|hardware revision]]) | ||
* a desktop/laptop running Linux(64bit preferred) | * a desktop/laptop running Linux(64bit preferred) | ||
* a micro usb cable, one side plugged in to the OTG port of radxa rock, the other side plugged in to the usb port on desktop/laptop | * a micro usb cable, one side plugged in to the OTG port of radxa rock, the other side plugged in to the usb port on desktop/laptop | ||
=== Install the toolchain === | === Install the toolchain === | ||
| + | |||
Install ARM toolchain and building kernel related packages if you don't have them on your host. | Install ARM toolchain and building kernel related packages if you don't have them on your host. | ||
| + | |||
sudo apt-get install gcc-arm-linux-gnueabihf build-essential lzop libncurses5-dev libssl-dev | sudo apt-get install gcc-arm-linux-gnueabihf build-essential lzop libncurses5-dev libssl-dev | ||
export ARCH=arm | export ARCH=arm | ||
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=== Get the source code === | === Get the source code === | ||
| − | git clone -b radxa- | + | git clone -b radxa/stable-3.0 https://github.com/linux-rockchip/kernel_rockchip.git |
or download from this link and unzip it: | or download from this link and unzip it: | ||
| − | |||
| − | + | https://codeload.github.com/linux-rockchip/kernel_rockchip/zip/radxa/stable-3.0 | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
=== Build the kernel === | === Build the kernel === | ||
| − | cd | + | cd kernel_rockchip |
| − | make | + | make radxa_rock_pro_linux_defconfig |
make -j8 | make -j8 | ||
| + | |||
The kernel will be at '''arch/arm/boot/Image''' | The kernel will be at '''arch/arm/boot/Image''' | ||
| − | if | + | if your Rock is full or lite, use radxa_rock_linux_defconfig instead of radxa_rock_pro_linux_defconfig |
| − | make | + | |
| + | make radxa_rock_linux_defconfig | ||
=== Build the kernel modules === | === Build the kernel modules === | ||
| + | |||
mkdir modules | mkdir modules | ||
export INSTALL_MOD_PATH=./modules | export INSTALL_MOD_PATH=./modules | ||
make modules && make modules_install | make modules && make modules_install | ||
cd .. | cd .. | ||
| + | |||
Now you have all the kernel modules in '''modules/lib/modules/3.0.36+/'''. | Now you have all the kernel modules in '''modules/lib/modules/3.0.36+/'''. | ||
Revision as of 02:28, 1 September 2014
Contents
Requirement
- a radxa rock board (check your hardware revision)
- a desktop/laptop running Linux(64bit preferred)
- a micro usb cable, one side plugged in to the OTG port of radxa rock, the other side plugged in to the usb port on desktop/laptop
Install the toolchain
Install ARM toolchain and building kernel related packages if you don't have them on your host.
sudo apt-get install gcc-arm-linux-gnueabihf build-essential lzop libncurses5-dev libssl-dev export ARCH=arm export CROSS_COMPILE=arm-linux-gnueabihf-
Get the source code
git clone -b radxa/stable-3.0 https://github.com/linux-rockchip/kernel_rockchip.git
or download from this link and unzip it:
https://codeload.github.com/linux-rockchip/kernel_rockchip/zip/radxa/stable-3.0
Build the kernel
cd kernel_rockchip make radxa_rock_pro_linux_defconfig make -j8
The kernel will be at arch/arm/boot/Image
if your Rock is full or lite, use radxa_rock_linux_defconfig instead of radxa_rock_pro_linux_defconfig
make radxa_rock_linux_defconfig
Build the kernel modules
mkdir modules export INSTALL_MOD_PATH=./modules make modules && make modules_install cd ..
Now you have all the kernel modules in modules/lib/modules/3.0.36+/.
Generate the ramdisk
git clone https://github.com/radxa/initrd.git make -C initrd
Generate the boot.img
Install mkbootimg
git clone https://github.com/neo-technologies/rockchip-mkbootimg.git cd rockchip-mkbootimg make sudo make install cd ..
Make boot.img
mkbootimg --kernel rockchip-3.0/arch/arm/boot/Image --ramdisk initrd.img -o boot.img
Done. Now we have the kernel boot.img for RR.
Modify the parameter
The linux rootfs maybe in the different partition or media(nand or uSD card or USB disk), so you need to tell the kernel which is the right rootfs to mount. So change the root= command line in your parameter to the rootfs you want to mount. The examples are:
root=/dev/block/mtd/by-name/linuxroot # rootfs in the nand partition named "linuxroot" root=/dev/mmcblk0p1 # rootfs in the uSD card first partition root=/dev/sda1 # rootfs in the U disk or the USB hard drive first partition root=LABEL=linuxroot # rootfs in the partition with label "linuxroot", can be in uSD, U disk or USB hard drive.
Next step
Now you refer flash the image to flash the generated boot.img to "boot" partition parameter to "parameter" partition of your radxa rock board. And download a prebuilt rootfs or make your own rootfs. You will get linux system boot into ramdisk and then switch root to real rootfs.