Big Tree Tech Manta M8P and CB1 I’m trying to SSH and use ‘ls /dev/serial/by-id/’ and it just responds ‘no such file or directory’. I don’t know how to find the USB ID to put into Klipper. Mainsail works, SSH works, WinSCP works, the board comes up with ‘lsusb’ command. What do I do?

Sorry, you should see what device the Manta M8P is coming up as. The only thing I can suggest now is to go back to the beginning, start with a fresh SD Card for the CB1, reload KIAUH followed by Klipper and reflash the M8P.

Normally, we’d just tell you but since the start of the new year our psychic powers have been a bit spotty. So, we’ll have to go the old fashioned way and have you detail the process you’re using to set up your printer along with all of the responses that you get that seem noteworthy. A klippy.log,…

I downloaded the full version of debian with klipper for the CB1 (from BTT Github). I made a config and flashed the Manta M8P with an SD card. Mainsail works, SSH works, WinSCP works. I can’t use ‘ls /dev/serial/by-id/’ and there is no ‘serial’ file in the file directory. This printer has been worki…

Looking at your klippy.log, it looks like you’ve left out a number of things and there still is a lot of information that you still need to supply. Based on what I’m seeing here, you didn’t keep a backup of your printer.cfg. What are the parameters that you used in make menuconfig for your Manta M…

No, I didn’t keep a backup and I’m trying to fix the MCU issue before moving on to that [image] I copied the settings from a CB1 and M8P guide. The CB1 fits into a dedicated spot on the board and used to work, so it should be able to connect over USB (the USB lines run from the MCU to the CB1/CM4 …

Verify that you have a M8P v1.x and not a v2.x since the flashing procedures are different Carefully work through Installing Klipper with KIAUH

Wait, I do have the USB ID. I commented it out before trying the other thing I did. I uncommented it and removed the other and it still doesn’t connect. and what about the CB1 not having a serial file in its directory?

What happens when you power down the Manta M8P and the CB1 (which I presume is in the slot in the Manta M8P)? NOT RESET, but a power cycle with at least 15 seconds off. Upon power up, you should SSH into the CB1 and execute: lsusb And list the devices that appear in your reply. I would expect a…

I can’t believe it, after booting up this morning and trying that, I got a USB ID. I’m so lost as to why that worked, but it did, thank you. [image]

Power cycling solves an amazing number of problems. [IT Crowd - Have You Tried Turning It Off And On Again? [720p]] Glad you’re back up and working.

Can't find usb id for BTT CB1+M8p

General Discussion

Sineos January 31, 2024, 6:49am 6

Verify that you have a M8P v1.x and not a v2.x since the flashing procedures are different
Carefully work through Installing Klipper with KIAUH

Topic		Replies	Views
Mcu 'mcu': Unable to open serial port: [Errno 2] could not open port /dev/serial/by-id/ General Discussion	40	3546	September 6, 2024
Ls /dev/serial/by-id/* Is not being properly generated General Discussion	17	450	August 5, 2025
Klipper, linux on loptop, MCU, lsusb, CH340 General Discussion	4	642	March 19, 2024
Ender 3 S1 - No USB ID General Discussion	9	2680	November 25, 2024
Raspi 4 failing to make usb connection to MCU General Discussion	35	7369	May 22, 2023

Can't find usb id for BTT CB1+M8p

Related topics