I just tried with a single ext2 partition and "ext2load mmc 0 0x80300000 /boot/uImage" and it gives me exactly the same error; u-boot seems to still be loading from mmc 0:1:
Loading file "boot.txt" from mmc1 device 0:1 (xxa1)
138 bytes read
## Executing plain script at 82000000
Forgot to mention that I have applied HF4 and the codec pack. Not sure if hotfix installers update u-boot though (possibly only happens when full reflashing)? Have you done a full reflash at any point, or just applied the hot fixes?
Hmm, I can't find any decent documentation about the exact...
I've recently received by Pandora (wooooooooo), and am getting down to do some hacking. I've cross-compiled myself a custom root image consisting of pretty much just busybox and a kernel for testing. I've created a u-boot script which looks like this:
setenv bootargs root=/dev/mmcblk0p1...
A year or so ago I started looking at a R4300i/RCP -> IA64 recompiler. I found this zip (I forget where), if you dig around in the docs directory there is LOTS of useful stuff.
I've upped it here: