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Friday, June 1, 2012

First Impressions of Raspberry Pi

Well a Raspberry Pi arrived in the post today:



These are my first impressions after using it for less than an hour.


Summary


Pros:

Easy to get up and running, no uboot type issues, Debian SD card image works well, comes with LXDE which feels fast, network works out of the box.  Image includes a 3.1.9 kernel.

Sample Debian image is really well designed

Cons:

No obvious serial connection.
Default Debian image needs to be resized for but has a swapfile as the last partition. Easy to fix though.
 
Background:

I used Ubuntu 12.04 on my development PC to load the image. I powered the

Thursday, May 17, 2012

 

Updated uBoot commands, no longer 'mmcinit'

 
If using Ubuntu ARM 12.04 with a BeagleBoard C3 that has a recent uBoot version on it then
the following suggested command will not work:
 
setenv bootcmd 'mmc init;fatload mmc 0 0x82000000 boot.scr;source 0x82000000';
  setenv autostart yes; saveenv; boot
 
Instead you need to convert the "init" to "dev 0", so that it is:
 

setenv bootcmd 'mmc dev 0;fatload mmc 0 0x82000000 boot.scr;source 0x82000000'; 
  setenv autostart yes; saveenv; boot
 
This is the new way to set the mmc device.