# # U-Boot bootscript for altbootcmd (dual boot fallback after retries) # # After an upgrade, active_system has changed. U-Boot tries to boot this system # for a number of tries. If the limit is reached, altbootcmd is run instead. # This is the script that it will run. It has to: # * switch back to previous system # * reset the firmware update flag # * run the regular boot command if test "${dualboot}" = "yes" && test "${upgrade_available}" = "1"; then echo "## Update failed; Rolling back to previous version." if test "${active_system}" = "linux_a"; then setenv active_system linux_b setenv mtdbootpart ${active_system} setenv rootfsvol ${rootfsvol_b} else setenv active_system linux_a setenv mtdbootpart ${active_system} setenv rootfsvol ${rootfsvol_a} fi setenv upgrade_available setenv bootcount 0 saveenv fi run bootcmd