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Diffstat (limited to 'board/pandaboard/readme.txt')
| -rw-r--r-- | board/pandaboard/readme.txt | 48 |
1 files changed, 9 insertions, 39 deletions
diff --git a/board/pandaboard/readme.txt b/board/pandaboard/readme.txt index e18ae5236..1e4820b82 100644 --- a/board/pandaboard/readme.txt +++ b/board/pandaboard/readme.txt @@ -28,49 +28,19 @@ The result of the build with the default settings should be these files: ├── omap4-panda.dtb ├── omap4-panda-es.dtb ├── rootfs.ext4 + ├── sdcard.img ├── u-boot.img └── zImage -Setting up your SD card ------------------------ +How to write the SD card +------------------------ -*Important*: pay attention which partition you are modifying so you don't -accidentally erase the wrong file system, e.g your host computer or your -external storage! +Once the build process is finished you will have an image called "sdcard.img" +in the output/images/ directory. -In the default setup you need to create two partitions on your SD card: -a boot partition and a rootfs partition. +Copy the bootable "sdcard.img" onto an SD card with "dd": -The ROM code from OMAP processors need the SD card to be formatted with -a special geometry in the partition table. To do that, you can use the -shell script below (this script was extracted from -http://elinux.org/Panda_How_to_MLO_%26_u-boot). + $ sudo dd if=output/images/sdcard.img of=/dev/sdX -#!/bin/sh -DRIVE=$1 -if [ -b "$DRIVE" ] ; then - dd if=/dev/zero of=$DRIVE bs=1024 count=1024 - SIZE=`fdisk -l $DRIVE | grep Disk | awk '{print $5}'` - echo DISK SIZE - $SIZE bytes - CYLINDERS=`echo $SIZE/255/63/512 | bc` - echo CYLINDERS - $CYLINDERS - { - echo ,9,0x0C,* - echo ,,,- - } | sfdisk -D -H 255 -S 63 -C $CYLINDERS $DRIVE - mkfs.vfat -F 32 -n "boot" ${DRIVE}1 - mke2fs -j -L "rootfs" ${DRIVE}2 -fi - -The next step is to mount the sdcard's first partition and copy MLO -and u-boot.img to it. - - $ sudo mkdir -p /mnt/sdcard - $ sudo mount /dev/sdX1 /mnt/sdcard - $ sudo cp MLO u-boot.img /mnt/sdcard - $ sudo umount /mnt/sdcard - -The last step is to copy the rootfs image to the sdcard's second -partition using 'dd': - - $ sudo dd if=rootfs.ext4 of=/dev/sdX2 bs=1M conv=fsync +Where /dev/sdX is the device node of your SD card (may be /dev/mmcblkX +instead depending on setup). |