U-boot env file

Specifically, you need the mtd device name, the device offset, the env size and the flash sector size. Care must be taken when changing env variables as a typo could easily render your system unbootable. Most problems can be fixed by connecting to the serial console and using U-Boot's command line to fix bad variable. From eLinux. Jump to: navigation , search. Actually, my u-boot is a binary image, so it cannot perform any relocation. Thanks — Thang Le. U-Boot will relocate itself, whether it needs it or not.

Else, relocation will be skipped if u-boot is running in RAM. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Silvio Ankermann Silvio Ankermann 13 3 3 bronze badges. Add a comment. Active Oldest Votes. You need to pass your uEnv. Efe Can Efe Can 1 1 1 bronze badge.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Do the environment variables get saved back to uboot. If not, how do I save the imported contents from uEnv. Is it possible to save only one environment variable back to uboot. If yes, how can it be done? Is there an example explaining "env export"?

I assume it is the opposite of "env import", which reads from a plaint text file. So the "export" should save to a file? Please explain. Hello Matt, Matt Tsai52 said: 1. Matt Tsai52 said: 2. Yes, it is possible.