Talk:Booting the Neo FreeRunner from SD via U-Boot

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Revision as of 10:01, 13 July 2008 by Peterpall (Talk | contribs)

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Simpler way of booting from a SD card

My freerunner came with a "boot from SD card" option already installed in uBoot. I just needed a SD (Not HDMC) card with the following layout:

  • Partition 1 is a primary partition with a FAT filesystem containing the uImage - which has to be named uImage.bin
  • Partiton 2 is a Filesystem containing the root partition. According to the uBoot environment it should be an ext2 partiton, - but it seems like the standrd kernels from the buildhost don't support this. Will try to change the uBoot environemt variable so I can boot from ext3 - which should be supported by the kernel one day.

My hardware setup is:

  • Latest uBoot (July 12, 2008)
  • Freerunner (GTA02V5, 1st batch that could be regularily ordered from the openmoko online shop.)

The uBoot environment variable that should allow booting from my card reads:

menu_1=Boot from microSD (FAT+ext2): setenv bootargs ${bootargs_base} rootfstype=ext2 root=/dev/mmcblk0p2 rootdelay=5 ${mtdparts} ro; mmcinit; fatload mmc 1 0x32000000 ${sd_image_name}; bootm 0x32000000
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Simpler way of booting from a SD card

My freerunner came with a "boot from SD card" option already installed in uBoot. I just needed a SD (Not HDMC) card with the following layout:

  • Partition 1 is a primary partition with a FAT filesystem containing the uImage - which has to be named uImage.bin
  • Partiton 2 is a Filesystem containing the root partition. According to the uBoot environment it should be an ext2 partiton, - but it seems like the standrd kernels from the buildhost don't support this. Will try to change the uBoot environemt variable so I can boot from ext3 - which should be supported by the kernel one day.

My hardware setup is:

  • Latest uBoot (July 12, 2008)
  • Freerunner (GTA02V5, 1st batch that could be regularily ordered from the openmoko online shop.)

The uBoot environment variable that should allow booting from my card reads:

menu_1=Boot from microSD (FAT+ext2): setenv bootargs ${bootargs_base} rootfstype=ext2 root=/dev/mmcblk0p2 rootdelay=5 ${mtdparts} ro; mmcinit; fatload mmc 1 0x32000000 ${sd_image_name}; bootm 0x32000000