'VÏu¢Âh=Î –†3äFedora Update Script Ž# -------------------------------------------------------------- # Version Check # -------------------------------------------------------------- # Define the current script version setenv current_update_ver 3 # Check if an update version is already stored in env_update_ver if test -n "${env_update_ver}"; then # If the current script version is less than or equal to the stored version, abort. if test ${current_update_ver} -le ${env_update_ver}; then echo "Current update script version (${current_update_ver}) is not higher than installed version (${env_update_ver}). Aborting update." exit fi fi # Set the new update version into the environment setenv env_update_ver ${current_update_ver} setenv current_update_ver # -------------------------------------------------------------- # Do not override bootcmd_bak if already set (backup is used only once) # -------------------------------------------------------------- if test -z "${bootcmd_bak}"; then setenv bootcmd_bak "$bootcmd" fi # -------------------------------------------------------------- # Check if environment has already been updated # -------------------------------------------------------------- # if test "${bootcmd_set}" -eq 1; then # echo "Environment has been set. Type 'run env_recover' to reset bootcmd to factory reset." # exit # fi echo "Setting environment for Fedora RISC-V update (version ${env_update_ver})" # setenv bootcmd_set 1 # ---------------------------- # Storage Device Configuration # ---------------------------- setenv storage_init 'pci enum; usb start; nvme scan; mmc rescan; sata init;' setenv storage_list 'mmc usb nvme sata' # ---------------------- # Environment Import Logic # ---------------------- setenv import_env 'env import -t $loadaddr $filesize' setenv envfile '/uEnv_EIC7700.txt' # ---------------------- # Bootloader Core Logic # ---------------------- setenv boot_attempt ' if load ${dev_type} ${dev_num}:1 $loadaddr $envfile; then echo "[INFO] Loaded environment from ${dev_type} ${dev_num}:1"; run import_env; boot; fi' setenv storage_check ' for dev_type in ${storage_list}; do echo "Checking ${dev_type} devices..."; for dev_num in 0 1; do if ${dev_type} dev ${dev_num}; then echo "Attempting boot from ${dev_type}#${dev_num}"; run boot_attempt; fi; done; done' # ---------------------- # Main Boot Sequence # ---------------------- # Do not override bootcmd_bak if already set above. setenv bootcmd "run storage_init; run storage_check; $bootcmd" setenv env_recover ' # Recover bootcmd from backup (bootcmd_bak remains untouched if previously set) setenv bootcmd "$bootcmd_bak"; setenv storage_init; setenv storage_list; setenv import_env; setenv boot_attempt; setenv storage_check; setenv bootcmd_bak; setenv env_recover; # setenv bootcmd_set; setenv envfile; setenv env_update_ver; saveenv; echo "Environment reset! Type `reset` to reboot machine." ' saveenv echo "Type 'run env_recover' to reset Env" echo "Env Update complete! Type 'boot' to boot Fedora" # boot