Load uBoot

Here is a u-boot which works for Ubuntu and Ångstrøm: u-boot-f.bin (176.52 kb) find more info at http://elinux.org/BeagleBoardUbuntu

1. mmcinit (or "mmc init")fatload mmc 0 0x80200000 u-boot-f.bin
2. nand unlock
3. nandecc sw (or nand ecc sw)
4. nand erase 80000 160000nand write.i 0x80200000 80000 160000
5. reset

Set boot cmd and args

1. setenv bootcmd ‘mmc init; fatload mmc 0:1 0x80300000 uImage; bootm 0x80300000’
2. setenv bootargs ‘console=ttyS2,115200n8 root=/dev/mmcblk0p2 rw rootdelay=2’
3. saveenv
4. boot

Backup / restore SD cards on Linux (Ubuntu)

More info about dd

Backup

1. sudo dd if=/dev/hdx | gzip > /path/to/image.gz

Restore

1. gzip -dc /path/to/image.gz | sudo dd of=/dev/hdx