Difference between revisions of "Rock/Booting Linux"
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{{Languages|rock/Booting Linux}} | {{Languages|rock/Booting Linux}} | ||
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Install packages for building kernel if you don't have them on your host. | Install packages for building kernel if you don't have them on your host. | ||
| − | sudo apt-get install build-essential lzop libncurses5-dev libssl-dev | + | sudo apt-get install build-essential lzop libncurses5-dev libssl-dev |
| + | If build on 64bit machine, also need to install: | ||
| + | sudo apt-get install libc6:i386 | ||
=== Install the toolchain === | === Install the toolchain === | ||
| − | + | Refer [[Rock/install_toolchain | install toolchain]] | |
| − | + | you can use any toolchain if you are sure it works, or you may have to fix any error introduced by toolchain. | |
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| − | you can use any toolchain if you are sure it works, or you | + | |
=== Get the source code === | === Get the source code === | ||
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git clone -b radxa-stable-3.0 https://github.com/radxa/linux-rockchip.git | git clone -b radxa-stable-3.0 https://github.com/radxa/linux-rockchip.git | ||
| − | or download | + | or download here |
| − | + | http://pan.baidu.com/s/1jfOTo (china) | |
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== Build the kernel == | == Build the kernel == | ||
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cd linux-rockchip | cd linux-rockchip | ||
| − | if your Rock is pro(Mid 2014) or the new lite(Mid 2014) | + | if your Rock is pro(Mid 2014) or the new lite(Mid 2014), check out [[Rock/hardware_revision| hardware revision]] |
| − | make | + | if you use the HDMI for dispaly device |
| + | make radxa_rock_pro_linux_hdmi_defconfig | ||
| + | or you use the LCD for the primary display device(hdmi dual display at the same time) | ||
| + | make radxa_rock_pro_linux_lvds_defconfig | ||
if your rock is full version(2013) or engineering sample or the old lite(2013), use radxa_rock_linux_defconfig, check out [[Rock/hardware_revision| hardware revision]] | if your rock is full version(2013) or engineering sample or the old lite(2013), use radxa_rock_linux_defconfig, check out [[Rock/hardware_revision| hardware revision]] | ||
make radxa_rock_linux_defconfig | make radxa_rock_linux_defconfig | ||
| − | make - | + | make -j8 kernel.img |
The kernel will be at '''kernel.img''' (image for kernel partition) and '''arch/arm/boot/Image''' (raw binary) | The kernel will be at '''kernel.img''' (image for kernel partition) and '''arch/arm/boot/Image''' (raw binary) | ||
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if you want LZO compressed kernel, specify zkernel.img | if you want LZO compressed kernel, specify zkernel.img | ||
| − | make - | + | make -j8 zkernel.img |
The kernel will be at '''kernel.img''' (image for kernel partition) and '''arch/arm/boot/zImage''' (compressed binary) | The kernel will be at '''kernel.img''' (image for kernel partition) and '''arch/arm/boot/zImage''' (compressed binary) | ||
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== Modify the parameter == | == Modify the parameter == | ||
| + | There is a demo for parameter for sdcard you can get it or copy it to parameter file, but before you use you should modify it as the following guide | ||
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| + | wget http://dl.radxa.com/rock/images/parameter/parameter_linux_sd | ||
The linux rootfs can be put on 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: | The linux rootfs can be put on 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: | ||
Latest revision as of 02:58, 25 January 2016
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
Prepare the build environment
Install the packages
Install packages for building kernel if you don't have them on your host.
sudo apt-get install build-essential lzop libncurses5-dev libssl-dev
If build on 64bit machine, also need to install:
sudo apt-get install libc6:i386
Install the toolchain
Refer install toolchain
you can use any toolchain if you are sure it works, or you may have to fix any error introduced by toolchain.
Get the source code
git clone -b radxa-stable-3.0 https://github.com/radxa/linux-rockchip.git
or download here http://pan.baidu.com/s/1jfOTo (china)
Build the kernel
cd linux-rockchip
if your Rock is pro(Mid 2014) or the new lite(Mid 2014), check out hardware revision
if you use the HDMI for dispaly device
make radxa_rock_pro_linux_hdmi_defconfig
or you use the LCD for the primary display device(hdmi dual display at the same time)
make radxa_rock_pro_linux_lvds_defconfig
if your rock is full version(2013) or engineering sample or the old lite(2013), use radxa_rock_linux_defconfig, check out hardware revision
make radxa_rock_linux_defconfig
make -j8 kernel.img
The kernel will be at kernel.img (image for kernel partition) and arch/arm/boot/Image (raw binary)
if you want LZO compressed kernel, specify zkernel.img
make -j8 zkernel.img
The kernel will be at kernel.img (image for kernel partition) and arch/arm/boot/zImage (compressed binary)
Build the kernel modules
mkdir modules make INSTALL_MOD_PATH=./modules modules modules_install
Now you have kernel modules in modules/lib/modules/ and firmwares for some devices in modules/lib/firmware/.
Generate the image
Generate the initramfs
cd .. 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 linux-rockchip/arch/arm/boot/Image --ramdisk initrd.img -o boot.img
Done. Now we have the boot.img (image for boot/recovery partition) for RR.
Modify the parameter
There is a demo for parameter for sdcard you can get it or copy it to parameter file, but before you use you should modify it as the following guide
wget http://dl.radxa.com/rock/images/parameter/parameter_linux_sd
The linux rootfs can be put on 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.