On Wed, Sep 23, 2015 at 3:58 AM, Rick Mann <[email protected]> wrote:
> I accidentally set uname_r to something bad in /boot/uEnv.txt. It took me an 
> hour to figure out what U-boot was doing and to painstakingly re-create that, 
> fixing uname_r and then booting the system.
>
> Is there an easy way to override uname_r in /boot/uEnv.txt on the eMMC (or 
> dtb)?

For these types of mistakes, just plug in the usb otg connector.  On
failure to find the *.dtb/zImage etc from a mistype uname_r the eMMC
"should" show up as a usb flash device on the host pc..


> Also, how do you set really long environment variable values via the serial 
> console in U-boot?

very carefully... copy from gedit/kate..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

-- 
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