Building images

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1

Hello I have tried to make an image from

http://amethyst.openembedded.net/~koen/narcissus/

and get it booted on the beagle, and sadly enough, even though it has
been made so simple, I am still having trouble getting everything on
the mmc and booted up for the beagle.

I have tried extracting both files to a blank mmc to get it to work
but that is not working. Could somebody explain the process of getting
it working from a blank memory card, using the two ouputs that are
given from the image builder?
Thanks much

2

I do it with a card reader so I have access to the SD card from my
desktop (linux of course). On my system it appears at /dev/sdd

1) write the image
gunzip -c randomxxx.img.gz | sudo dd of=/dev/sdd
it will format the SD card and create 2 partitions. sdd1 is the fat
needed for booting, sdd2 is the EXT3 where you'll put your file system

2) write the file system in sdd2
sudo mount /dev/sdd2 /mnt
cd /mnt
sudo tar xjf path-to-randomxxx.tar.bz2
sudo umount /dev/sdd2

Et voila.
It should boot.

3

Forgot to add how to configure the boot loader: follow that guide
http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning

It should boot

except that the image I built today it does not boot. Fortunately I
had a backup of past images (21 january 2009) and these boot...

Anything broken with the new images? I noticed that the kernel got
upgraded from 2.6.27 to 2.6.28. my screen remains dark...

4

Thanks for your help I got the image going, and the ethernet and the
serial works great!!!!

5

Hi all,
after gunzip there is nothing in the FAT partition.
is it normal?
where are the MLO, uboot and uImage files?
some helps?
thankyou very much!

6

I figured I would post the exact steps I had to take there are a few
things that are slightly different from above. So maybe this will help
someone. Anyways part is from above another part is from the sd card
format page and a few are a little steps I had to follow. The steps
are as follows

I do it with a card reader so I have access to the SD card from my
desktop (linux of course). On my system it appears at /dev/sdd

1) erase the memory card with the hp utility

2) Start up linux go to terminal (unplug then replug in your sd card)
then do the following

Determine which device the SD Card Reader is on your system

Plug the SD Card into the SD Card Reader and then plug the SD Card
Reader into your system. After doing that, do the following to
determine which device it is on your system.

$ [dmesg | tail]
...
[ 6854.215650] sd 7:0:0:0: [sdc] Mode Sense: 0b 00 00 08
[ 6854.215653] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[ 6854.215659] sdc: sdc1
[ 6854.218079] sd 7:0:0:0: [sdc] Attached SCSI removable disk
[ 6854.218135] sd 7:0:0:0: Attached scsi generic sg2 type 0
...

In this case, it shows up as /dev/sdc (note sdc inside the square
brackets above).
Check to see if the automounter has mounted the SD Card

Note there may be more than one partition (only one shown in the
example below).

$ [df -h]
Filesystem Size Used Avail Use% Mounted on
...
/dev/sdc1 400M 94M 307M 24% /media/disk
...

Note the "Mounted on" field in the above and use that name in the
umount commands below.
If so, unmount it

$ [umount /media/disk]

Start fdisk

Be sure to choose the whole device (/dev/sdc), not a single partition
(/dev/sdc1).

$ [sudo fdisk /dev/sdc]

Print the partition record

So you know your starting point. Make sure to write down the number of
bytes on the card (in this example, 2021654528).

Command (m for help): [p]

Disk /dev/sdc: 2021 MB, 2021654528 bytes
255 heads, 63 sectors/track, 245 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot Start End Blocks Id System
/dev/sdc1 * 1 246 1974240+ c W95 FAT32
(LBA)
Partition 1 has different physical/logical endings:
     phys=(244, 254, 63) logical=(245, 200, 19)

Delete any partitions that are there already

Command (m for help): [d]
Selected partition 1

3) write the image
gunzip -c randomxxx.img.gz | sudo dd of=/dev/sdd
it will format the SD card and create 2 partitions. sdd1 is the fat
needed for booting, sdd2 is the EXT3 where you'll put your file system

4) unplug usbcard reader then plug back in to remount 1 and 2

2) write the file system in sdd2
sudo mount /dev/sdd2 /mnt
cd /mnt
sudo tar xjf path-to-randomxxx.tar.bz2
sudo umount /dev/sdd2

Et voila.
It should boot.

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