Difference between revisions of "BeagleBoardDebian"
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[[Category: OMAP]] | [[Category: OMAP]] | ||
− | This page is about running a (ARM) [http://www.debian.org/ Debian] distribution at [[BeagleBoard]]. BeagleBoard will boot the (ARM) Debian distribution from [[BeagleBoard#MMC.2FSD_boot|SD card]]. To prepare the SD card and install (ARM) Debian on it, [http://bellard.org/qemu/ QEMU] on host PC will be used, following Aurélien Jarno's excellent [http://www.aurel32.net/info/debian_arm_qemu.php Debian on an emulated ARM machine] howto | + | This page is about running a (ARM EABI) [http://www.debian.org/ Debian] distribution at [[BeagleBoard]]. BeagleBoard will boot the (ARM EABI) Debian distribution from [[BeagleBoard#MMC.2FSD_boot|SD card]]. To prepare the SD card and install (ARM EABI) Debian on it, [http://bellard.org/qemu/ QEMU] on host PC will be used, following Aurélien Jarno's excellent [http://www.aurel32.net/info/debian_arm_qemu.php Debian on an emulated ARM machine] howto. |
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= QEMU = | = QEMU = | ||
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==Install Debian== | ==Install Debian== | ||
− | To install (ARM) Debian inside QEMU: | + | To install (ARM EABI) Debian inside QEMU: |
sudo qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.24-1-versatile -initrd initrd.gz -m 256 -hda /dev/sde --append "root=/dev/ram mem=256M" | sudo qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.24-1-versatile -initrd initrd.gz -m 256 -hda /dev/sde --append "root=/dev/ram mem=256M" | ||
Note: sudo access is required to access /dev/sde directly. | Note: sudo access is required to access /dev/sde directly. | ||
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==Running Debian== | ==Running Debian== | ||
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=Beagleboard= | =Beagleboard= | ||
− | Insert SD Card and power up | + | Insert SD Card and power up Beagleboard. |
==Boot== | ==Boot== | ||
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#Swap disabled: change /dev/hda5 -> /dev/mmcblk0p5 in /etc/fstab (artifact of qemu install to /dev/hdaX) | #Swap disabled: change /dev/hda5 -> /dev/mmcblk0p5 in /etc/fstab (artifact of qemu install to /dev/hdaX) | ||
#RTC seems to be not enabled: use ntpdate when ethernet works, or issue date MMDDHHMMYYYY | #RTC seems to be not enabled: use ntpdate when ethernet works, or issue date MMDDHHMMYYYY | ||
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=Building a Native Debian Kernel with QEMU= | =Building a Native Debian Kernel with QEMU= | ||
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==Install Dependencies== | ==Install Dependencies== |
Revision as of 07:10, 20 August 2008
This page is about running a (ARM EABI) Debian distribution at BeagleBoard. BeagleBoard will boot the (ARM EABI) Debian distribution from SD card. To prepare the SD card and install (ARM EABI) Debian on it, QEMU on host PC will be used, following Aurélien Jarno's excellent Debian on an emulated ARM machine howto.
Contents
QEMU
Install QEMU on your host PC. This assumes that your host PC is running Debian as well. If not, install QEMU the way your host PC distribution uses.
apt-get install qemu
Note: If your debian armel image crashes while fscking the partition, rebuild qemu from trunk.
Format SD Card
You need a SD card 1GB or greater.
Currently (Aug 15, 2008) ext2load doesn't seem to work in the current u-boot beagle board git repo. For the moment follow the LinuxBootDisk guide to setup a 50-100MB FAT partition on your SD Card to use u-boot's fatload.
For reference, this is a 2GB sd card after installing Debian:
Disk /dev/sde: 2032 MB, 2032664576 bytes 255 heads, 63 sectors/track, 247 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x000ab123 Device Boot Start End Blocks Id System /dev/sde1 1 6 48163+ 6 FAT16 /dev/sde2 * 7 228 1783215 83 Linux /dev/sde3 229 247 152617+ 5 Extended /dev/sde5 229 247 152586 82 Linux swap / Solaris
Preparation
To stay organized create working directory.
wget ftp://ftp.us.debian.org/debian/dists/lenny/main/installer-armel/current/images/versatile/netboot/initrd.gz wget ftp://ftp.us.debian.org/debian/dists/lenny/main/installer-armel/current/images/versatile/netboot/vmlinuz-2.6.24-1-versatile
Install Debian
To install (ARM EABI) Debian inside QEMU:
sudo qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.24-1-versatile -initrd initrd.gz -m 256 -hda /dev/sde --append "root=/dev/ram mem=256M"
Note: sudo access is required to access /dev/sde directly.
Running Debian
sudo qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.24-1-versatile -m 256 -hda /dev/sde -append "root=/dev/sda2 mem=256M"
Note: Time will be incorrect.
login as root, change password apt-get install ntpdate ntpdate pool.ntp.org reboot.. relogin change password...
Install default deb packages for linux-image & linux-headers
wget ..(currently building)
Stop QEMU and remount SD card to copy uImage to FAT partition:
cd /media/disk-1/ wget http://www.rcn-ee.com/code/beagle/debian/lenny/Linux-2.6.22.18-omap3/gcc-4.2/uImage
Beagleboard
Insert SD Card and power up Beagleboard.
Boot
Using a serial program, stop u-boot and add these commands:
setenv bootcmd 'mmcinit; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000' setenv bootargs 'console=ttyS2,115200n8 noinitrd root=/dev/mmcblk0p2 rootfstype=ext3 rw rootdelay=5 nohz=off' boot
To force the Beagleboard to always boot the sd card image:
setenv bootcmd 'mmcinit; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000' setenv bootargs 'console=ttyS2,115200n8 noinitrd root=/dev/mmcblk0p2 rootfstype=ext3 rw rootdelay=5 nohz=off' saveenv boot
Note: 'rootwait' only works with newer kernels, for 2.6.22.18-omap3 use 'rootdelay=5', otherwise this error:
VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0) Please append a correct "root=" boot option; here are the available partitions: 1f00 512 mtdblock01f00 512 mtdblock0 (driver?) 1f01 1920 mtdblock11f01 1920 mtdblock1 (driver?) 1f02 128 mtdblock21f02 128 mtdblock2 (driver?) 1f03 5120 mtdblock31f03 5120 mtdblock3 (driver?) 1f04 254464 mtdblock41f04 254464 mtdblock4 (driver?)
Debian on Beagleboard
Debian on BeagleBoard uses the following configuration:
- Console log = Serial Terminal
- User Console = HDMI port + usb (keyboard,etc)
Current Issues
- Swap disabled: change /dev/hda5 -> /dev/mmcblk0p5 in /etc/fstab (artifact of qemu install to /dev/hdaX)
- RTC seems to be not enabled: use ntpdate when ethernet works, or issue date MMDDHHMMYYYY
Building a Native Debian Kernel with QEMU
Install Dependencies
apt-get install git-core kernel-package fakeroot build-essential curl libncurses-dev
u-boot
wget -nc http://beagleboard.googlecode.com/files/u-boot_beagle_revb.tar.gz tar -xf u-boot_beagle_revb.tar.gz cd u-boot/ make CROSS_COMPILE= distclean make CROSS_COMPILE= omap3530beagle_config make CROSS_COMPILE=
Note: this should eventually error out. The goal isn't to build a native u-boot but just the u-boot's 'mkimage' such that a u-boot compatible uImage can be build later.
Add /tools/ to $PATH
PATH=/home/<user>/u-boot/tools:"${PATH}"
Linux Kernel
wget -nc http://www.beagleboard.org/uploads/2.6_kernel_revb-v2.tar.gz wget -nc http://www.rcn-ee.com/code/beagle/debian/lenny/2.6_kernel_revb-v2-debian-gcc-4.3.1-armel-v1.patch tar -xf 2.6_kernel_revb-v2.tar.gz
Patch Kernel
cd 2.6_kernel/ patch -p1 < ../2.6_kernel_revb-v2-debian-gcc-4.3.1-armel-v1.patch
Setup Kernel .config
make CROSS_COMPILE= distclean make CROSS_COMPILE= omap3_beagle_defconfig
Create Debian linux-image* & linux-headers* Package
make-kpkg clean CONCURRENCY_LEVEL=1 fakeroot make-kpkg --initrd kernel_image kernel_headers --cross_compile ""
Create U-boot uImage
make CROSS_COMPILE= uImage
Issues:
Debian's gcc-4.3 will fail to build a bootable uImage, so use gcc-4.2 as gcc thru 'update-alternatives'