Loading Arch ARM with U-Boot on Samsung Chromebook

[NotGustafKossinna]

Hi, I'm a bit stumped and would appreciate any kind of help very much!

I've been using Arch ARM on a Samsung Chromebook 303C12 H01 for a while now, having had Arch ARM installed on the internal flash storage. After doing a careless pacman -Syu I was greeted with "Failed to mount API filesystem, freezing".

Since now I need something to feed U-Boot with, I tried making a Live-USB-stick following the installation guide. I then tried running it with the following U-Boot command:

$this->bbcode_second_pass_code('', 'setenv bootargs root=/dev/sda2 rootfstype=ext4 rootwait rw; usb dev 0; ext2load usb 0:1 42000000 vmlinux.uimg; bootm 4200000')

Which resulted in ** Bad ext2 partition or disk - usb 0:1 ** Wrong Image Format for bootm command. I then repeated it twice, once with cgpt in the Ubuntu repos, once partitioning via gparted - with the same outcome. Trying it on a SD-Card resulted in:

$this->bbcode_second_pass_code('', 'SMDK5250# mmc dev 1
ERROR: v7_dcache_inval_range - stop address not aligned - 0xbda3c4c8')

In another try, following this article, I prepared another SD-Card and used their U-Boot commands with the same outcome as above.

$this->bbcode_second_pass_code('', 'U-Boot 2011.12(Feb 14 2013) for SMDK5250
armv7a-cros-linux-gnueabi-gcc.real (4.7.1_cos_gg_164c96f) 4.7.x-google 20120820 (prerelease)
GNU ld (binutils-2.22_cos_gg_2) 2.22')