Hi all, I need to do an update system for a system embedded with yocto with the aid of rauc, but I have some doubts .. I have to change the boot system to bootchooser, for this, according to the rauc documentation, I have to create a node in the internal device- tree in which the state of the bootchooser is saved. nv bootchooser.state_prefix = "boot_state" Is the internal device-tree different from the kernel's device-tree? Is it assumed that the internal device-tree is already in the barebox binary or is dynamically loaded? if I run of_dump I can see the device-tree but I do not know if it can be edited before doing the barebox binary. If I try to load a binary devicetree (the one that uses the kernel) with the command oftree -l /dev/nand0.root.ubi.oftree.0 I get the following error: setting root node failed: Device or resource busy oftree: Device or resource busy On the other hand I have tried to update the devicetree that is already loaded by commands of_node and of_property, ( https://rauc.readthedocs.io/en/latest/integration.html#barebox) ''' #! / bin / sh of_node -c / boot_state of_node -c / boot_state / system0 of_node -c / boot_state / system1 of_node -c / boot_state / last_chosen @ 10 of_node -c / boot_state / system0 / remaining_attempts @ 0 of_node -c / boot_state / system0 / priority @ 4 of_node -c / boot_state / system1 / remaining_attempts @ 0 of_node -c / boot_state / system1 / priority @ 4 of_property -s / boot_state / system0 / remaining_attempts @ 0 reg <0x04> of_property -s / boot_state / system0 / remaining_attempts @ 0 type uint32 of_property -s / boot_state / system0 / remaining_attempts @ 0 default <3> of_property -s / boot_state / system0 / priority @ 4 reg <0x4 0x4> of_property -s / boot_state / system0 / priority @ 4 type uint32 of_property -s / boot_state / system0 / priority @ 4 default <20> of_property -s / boot_state / system1 / remaining_attempts @ 0 reg <0x8 0x4> of_property -s / boot_state / system1 / remaining_attempts @ 0 type uint32 of_property -s / boot_state / system1 / remaining_attempts @ 0 default <3> of_property -s / boot_state / system1 / priority @ 4 reg <0xC 0x4> of_property -s / boot_state / system1 / priority @ 4 type uint32 of_property -s / boot_state / system1 / priority @ 4 default <20> of_property -s / boot_state / last_chosen @ 10 reg <0x10 0x4> of_property -s / boot_state / last_chosen @ 10 type uint32 ''' up here, fine, but if I try to add the following line, '''of_property -s / boot_state / system1 # address-cells <1>''' barebox reboots and the following error exits unable to handle NULL pointer dereference at address 0x0000000d [...] at the end with all the attempts, if I execute Boot bootchooser, the following error occurs Nothing bootable found on 'bootchooset' Nothing bootable found Any help is appreciated _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
