By a7v7
Tue Dec 23, 2025 6:00 am
Hey all,
As part of an issue I was having, I thought the best solution was to connect to the serial console. To do this I used a USB to serial interface (3.3v) and worked out what pins were GND, Tx and Rx. Once I had that worked out, I booted the system and recorded the boot. After a few moments it came to a login prompt.
Welcome to Buildroot
mpc-one-mk2 login:
mpc-one-mk2 login: root
Password:
Login incorrect
mpc-one-mk2 login: root
Password:
Login incorrect
mpc-one-mk2 login:
The serial port was just as noted in https://github.com/TheKikGen/MPC-LiveXplore/wiki although there was no power on pin 1.
Everything I read said the login would be 'root' with no password or 'root' with 'root' as the password. Neither of those worked. Does anyone know the password for MPC One+ 'root' login?
ACV
As part of an issue I was having, I thought the best solution was to connect to the serial console. To do this I used a USB to serial interface (3.3v) and worked out what pins were GND, Tx and Rx. Once I had that worked out, I booted the system and recorded the boot. After a few moments it came to a login prompt.
Welcome to Buildroot
mpc-one-mk2 login:
mpc-one-mk2 login: root
Password:
Login incorrect
mpc-one-mk2 login: root
Password:
Login incorrect
mpc-one-mk2 login:
The serial port was just as noted in https://github.com/TheKikGen/MPC-LiveXplore/wiki although there was no power on pin 1.
Everything I read said the login would be 'root' with no password or 'root' with 'root' as the password. Neither of those worked. Does anyone know the password for MPC One+ 'root' login?
ACV

