[yocto] raspberrypi image questions

[Gary Thomas]

I just built Yocto/Poky for the raspberrypi, following the
recent thread on this list.  I noticed that the resulting SD
image is ~4GB, but most of that space seems to be unused:

   $ ssh root at 192.168.1.150
   Warning: Permanently added '192.168.1.150' (RSA) to the list of known hosts.
   root at 192.168.1.150's password:
   root at raspberrypi:~# df
   Filesystem           1K-blocks      Used Available Use% Mounted on
   /dev/root                57388     46754      7718  86% /
   none                     93964       156     93808   0% /dev
   /dev/mmcblk0p2           57388     46754      7718  86% /media/mmcblk0p2
   /dev/mmcblk0p1           19400      8928     10472  46% /media/mmcblk0p1
   tmpfs                    93964        56     93908   0% /var/volatile
   tmpfs                    93964         0     93964   0% /dev/shm
   tmpfs                    93964         0     93964   0% /media/ram
   root at raspberrypi:~# cat /proc/partitions
   major minor  #blocks  name

    179        0    3977216 mmcblk0
    179        1      19456 mmcblk0p1
    179        2    3885056 mmcblk0p2

Notice that the physical partition for /dev/mmcblk0p2 is huge but
the file system is only 57MB.

How can I adjust my build and/or resize the file system to actually
use the rest of the SD card?

Also, is it possible to just build the SD image much like I do for
other devices like the BeagleBoard, albeit with different contents
in /boot?  Sloshing around 4GB images is rather painful, plus it
takes forever to DD it to the SD card.

Thanks

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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