See
http://imx.solid-run.com/wiki/index.php?title=ArchLinuxI don't like the procedure described it isn't the "Arch Way" (really ? installation script ?).
I only had few minutes to test my Cubox-i2 today but:
SPL works just fine with Cubox-i2 and Arch so the same procedure will work for all Cubox-i models:
* Create 2 partitions: small Win32 and large Linux, use fdisk defaults for the first sector (2048) so you'll have enough space for SPL and uBoot raw writing.
* Format the first as fat, second as ext4.
* Get SPL and uBoot image and dd to the SD card (see how to in the Cubox-i wiki).
* Mount the partitions, download and extract the rootfs, copy kernel uImage to boot partition. (Edit: I'm not sure about the rest of the uBoot files: uboot.scr ..)
* Edit fstab.
* Sync and umount.