Revision as of 21:23, 15 July 2008

How to boot Qtopia from the SD card

This howto is probably incomplete. I also suggest not to directly copy paste anything from here, because I've written this after doing all the work. In case it's important, I used Fedora to do all this stuff.

Setting up u-boot

• Get NeoCon and run it as follows:

sudo ./neocon -t 30 /dev/ttyACM0

• Boot into NAND u-boot (not NOR) with the USB cable connected between the phone and your computer, see Getting_Started_with_your_Neo_FreeRunner#Log_into_U-Boot_in_the_NAND_Flash
  • NAND is usually the one without the nice Openmoko logo ;)
• When the menu hopefully comes up in neocon do:

setenv menu_1 Boot from microSD (FAT+ext3): setenv bootargs ${bootargs_base} rootfstype=ext3 root=/dev/mmcblk0p2 rootdelay=5 ${mtdparts} ro\; mmcinit\; fatload mmc 1 0x32000000 ${sd_image_name}\; bootm 0x32000000

• Then save the environment by doing:

saveenv

This should make the Neo boot from an ext3 partition on the SD card. The kernel can't boot from an ext2 partition currently even though it was the default setting for the bootloader.

Getting Qtopia and extracting the jffs2 image

• Get the jffs2 image from http://www.qtopia.net/modules/mydownloads/viewcat.php?cid=6
• The image needs to be extracted so that the files can be copied to the SD card. Follow the instructions in Userspace_root_image#Mounting_the_JFFS2_image_on_a_loop_back_device_.28Kernel_Memory_MTD_Emulation.29
• Follow the instructions in Boot_from_sd_card, but remember to make the second partition ext3, not ext2. You should have a uImage.bin file for the kernel partition and a bunch of directories extracted from the jffs2 image for the root file system partition.

Actually booting Qtopia on the phone

Insert the SD card into the phone, boot to NAND u-boot (again, not to NOR), choose Boot from microSD (FAT+ext3) and the phone should start booting Qtopia.