Can't Boot Qtopia from microSD

[Shakthi Kannan]

Hi Brian,

--- On Wed, Aug 6, 2008 at 1:37 PM, Brian C <brianwc at ocf.berkeley.edu> wrote:
| If someone has Qtopia (or any other distro, for that matter) booting
| from microSD, I'd appreciate very step-by-step instructions
\--

Some quick notes I had made:

1. Download qtopia-4.3.2-gta02-flash-07221045.tgz from:

http://wiki.openmoko.org/wiki/Latest_Images#Qtopia_image_from_qtopia.net

It extracts to:

  qtopia-4.3.2-gta02-flash-07221045.jffs2
  uImage_2008_07_16_gta02_73eeb0333fc771cb696ff9bf17c517c741434b59.bin

2. Prepare SD card (from USB 4-in-1 card reader):

   fdisk /dev/sdb

First partition is 8M.
Use remaining disk space for second partition.

3. Create vfat on /dev/sdb1

   mkfs.vfat /dev/sdb1

Rename the uImage kernel to uImage.bin and copy it to the first partition.

4. Create ext2 filesystem on /dev/sdb2

   mke2fs /dev/sdb2

5. Prepare the .tar.gz from .jffs2:

http://wiki.openmoko.org/wiki/Userspace_root_image#Mounting_the_JFFS2_image_on_a_loop_back_device_.28Kernel_Memory_MTD_Emulation.29

	modprobe mtdcore
	modprobe jffs2
	modprobe mtdram total_size=59024
		 /* default is 4 MByte - set to max. available size */
	modprobe mtdchar
	modprobe mtdblock

Check "cat /proc/mtd":
# dev:    size   erasesize  name
# mtd0: 039a4000 00020000 "mtdram test device"

Use "mtdram" device file (mtd0, in the above):

sudo dd if=<rootfs.jffs2> of=/dev/mtd0
mount -t jffs2 /dev/mtdblock0 /mnt
sudo tar czf qtopia-4.3.2-gta02-rootfs-07172049.tar.gz -C /mnt .

6. Install root filesystem on the Neo device:

scp qtopia-4.3.2-gta02-rootfs-07172049.tar.gz
root at 192.168.0.202:/media/mmcblk0p2/

 cd /media/mmcblk0p2
 tar xzf qtopia-4.3.2-gta02-rootfs-07172049.tar.gz
 rm qtopia-4.3.2-gta02-rootfs-07172049.tar.gz
 rm -f /media/mmcblk0p2/boot/*

7. Press AUX button, choose boot from SD card (VFAT+ext2) and boot
into Qtopia :)

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com