wiki/en/help-uboot.md

Help: U-boot

Environment

If you get Too many args error while trying to set an environment variable, try to do that from within Linux using fw_setenv instead of setenv in U-boot.

U-boot console:

hisilicon # setenv uk 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 uImage.${soc}; sf probe 0; sf erase 0x50000 0x200000; sf write 0x82000000 0x50000 ${filesize}'
** Too many args (max. 16) **

OpenIPC Linux:

root@openipc-hi3518ev100:~# fw_setenv uk 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 uImage.${soc}; sf probe 0; sf erase 0x50000 0x200000; sf write 0x82000000 0x50000 ${filesize}'
root@openipc-hi3518ev100:~#