01-05-2021, 02:08 PM
(01-05-2021, 01:01 PM)jja2000 Wrote:(01-05-2021, 10:23 AM)amiraeva Wrote:I read that you could use escape in UART yes, I was hoping that I could do it through the videoconsole too. Time to bust out the CP2102 then(01-05-2021, 05:14 AM)jja2000 Wrote: I'm running into the same problem. How do I remove usb start from the preboot env variable? Booting timeout is on 0 so I don't have the chance to mash any keys.If I'm not mistaken, even with a timeout of 0 - there is a narrow window to stop the automatic boot process. Just had to mash keys in the UART console right as you turn your SBC on. At least that's how I was able to muck around in the uboot console.
If you do have "usb start" in the preboot env variable, the USB system will be init'ed when U-Boot starts. So then after you see messages about USB starting, you can hit Ctrl-C on the USB keyboard repeatedly until you've cancelled all the attempts to boot from MMC, network and so on, and you should hopefully arrive at the U-Boot prompt, allowing keyboard interaction.
