debug_port
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debug_port [2025/05/04 18:41] – ounsatn | debug_port [2025/05/04 18:54] (current) – ounsatn | ||
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+ | So to interrupt, press space or another key few times in your putty ( console apps ) | ||
+ | Then you'll be on uboot prompt ( => ) . | ||
+ | |||
+ | There you can type help to get list of all commands but be careful of what you do. | ||
+ | |||
+ | To log into linux, as we don't have password, we are going to change it by mounting the rootfs partition and then we run passwd to change password. | ||
+ | |||
+ | | ||
+ | |||
+ | |||
+ | < | ||
+ | # Under uboot, print current bootargs , UUID will be different so use the one you have. | ||
+ | |||
+ | $> | ||
+ | $> | ||
+ | |||
+ | # We add " | ||
+ | $>setenv bootargs ' | ||
+ | |||
+ | # Print again to check everything is fine : | ||
+ | $> | ||
+ | |||
+ | # Then boot | ||
+ | $>boot | ||
+ | |||
+ | #Remount rootfs / with read write rights : | ||
+ | $>mount -rw -o remount / | ||
+ | |||
+ | #Change password, type what you want | ||
+ | $>passwd root | ||
+ | |||
+ | #Reboot | ||
+ | $>reboot -f | ||
+ | </ | ||
+ | |||
+ | and Voila, you have a console access to your device. | ||
+ | |||
debug_port.1746376902.txt.gz · Last modified: 2025/05/04 18:41 by ounsatn