# Lost CAN uuid after reboot Manta M8P V2 **URL:** \ **Category:** General Discussion\ **Created:** [December 13, 2023, 3:27am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259 "2023-12-13T03:27:44Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 15, 2023, 5:06am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/21 "2023-12-15T05:06:25Z")
Seems like a reasonable way of checking things. I saw that diagram but it just has “RX” and “TX”. ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [December 17, 2023, 8:08pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/22 "2023-12-17T20:08:15Z")
I tried, but if I copy your commands it always change to a directory I don’t have and I don’t know what to change to start from my directory. The command: sudo dfu-util -a 0 -D ~/Katapult/out/katapult.bin --dfuse-address 0x08000000:force:mass-erase:leave -d 0483:df11 Changes to: /home/biqu/Katapult/out/katapult.bin My directory is: biqu@BTT-CB1/katapult/out/katapult.bin ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 17, 2023, 8:47pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/23 "2023-12-17T20:47:16Z")
> [@KimHJ](#): > > My directory is: > biqu@BTT-CB1/katapult/out/katapult.bin Are you sure that’s right? When I look at the dumps you’ve listed, like: ```auto biqu@BTT-CB1:~$ ~/klippy-env/bin/python ~/klipper/scripts/canbus_query.py can0 Traceback (most recent call last): File “/home/biqu/klipper/scripts/canbus_query.py”, line 64, in main() File “/home/biqu/klipper/scripts/canbus_query.py”, line 61, in main query_unassigned(canbus_iface) File “/home/biqu/klipper/scripts/canbus_query.py”, line 20, in query_unassigned bus = can.interface.Bus(channel=canbus_iface, can_filters=filters, File “/home/biqu/klippy-env/lib/python3.9/site-packages/can/interface.py”, line 127, in new return cls(channel, *args, **kwargs) File “/home/biqu/klippy-env/lib/python3.9/site-packages/can/interfaces/socketcan/socketcan.py”, line 594, in init bind_socket(self.socket, channel) File “/home/biqu/klippy-env/lib/python3.9/site-packages/can/interfaces/socketcan/socketcan.py”, line 459, in bind_socket sock.bind((channel,)) OSError: [Errno 19] No such device biqu@BTT-CB1:~$ ``` Your home directory is `/home/biqu/...` not `/biqu@BTT-CB1/...` I think you’re mistaking the two. What do you get when you put in `pwd`? When I do it I get: `/home/biqu` Can you list the commands that you are using from the instructions above? They should be: Step 6: ```auto sudo dfu-util -a 0 -D ~/Katapult/out/katapult.bin --dfuse-address 0x08000000:force:mass-erase:leave -d 0483:df11 ``` Step 14: ```auto /home/biqu/Katapult/scripts/flash_can.py -i can0 -q ``` Step 16: ```auto sudo python3 /home/biqu/Katapult/scripts/flashtool.py -u -f /home/biqu/klipper/out/klipper.bin ``` ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [December 18, 2023, 1:34am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/24 "2023-12-18T01:34:05Z")
I’m not there before tomorrow, but I get not such file or directory. ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 18, 2023, 1:40am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/25 "2023-12-18T01:40:27Z")
Sorry? I don’t understand what you’re trying to say. I’m guessing your not at the printer but when you do get there, please do the `pwd` command in SSH and send the result. Also go through the toolhead process again and let me know how you make out - please post the results of each of the three commands for steps 6, 14 & 16. ---
**Author:** ![jakep\_82](https://avatars.discourse-cdn.com/v4/letter/j/ea666f/32.png) [@jakep\_82](https://klipper.discourse.group/u/jakep_82)\ **Post date:** [December 18, 2023, 3:18am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/26 "2023-12-18T03:18:07Z")
The user is biqu, and the hostname is BTT-CB1. That is what that means. The home directory is in fact /home/biqu. ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 18, 2023, 3:21am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/27 "2023-12-18T03:21:54Z")
I know that but I think @KimHJ needs to be walked through the process to understand that and know what he’s looking for. ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [December 18, 2023, 4:48pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/28 "2023-12-18T16:48:19Z")
I see that if I enter pwd it shows /home/biqu/katapult. Here is a screen shoot: ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/f/f330a4ee82df2d63f85c3014d6285f14b6af8755.png) I see the problem the upper case in the word Katapult. I will try now: ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/4/438698fefeb6cdd009a9403800ed7895f2790f19.png) ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 18, 2023, 4:56pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/29 "2023-12-18T16:56:53Z")
I think you need to look through your host file system carefully. It’s normally `Katapult` with a capital “K” - I would suggest that you only use this version of it and not `katapult` with a lower case “k”. ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [December 18, 2023, 5:22pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/30 "2023-12-18T17:22:54Z")
I got it to work using STM32CubeProgrammer. Thanks. ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [December 18, 2023, 5:24pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/31 "2023-12-18T17:24:02Z")
Good to hear. I look forward to seeing what you print. ---
**Author:** ![billche](https://avatars.discourse-cdn.com/v4/letter/b/2bfe46/32.png) [@billche](https://klipper.discourse.group/u/billche)\ **Post date:** [December 28, 2023, 4:47am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/32 "2023-12-28T04:47:35Z")
Hi, Exactly the same happened here, would you please tell me how you upload the firmware with the CubeProgrammer, what offset with katapult.bin and klipper.bin? which upload first? or does it matter? Thanks ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [December 28, 2023, 5:13am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/33 "2023-12-28T05:13:41Z")
I followed this youtube video. [![](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/5/5111a884a74ef4ea8a1947448f3c26de776b2cc3.jpeg "Manta M8P+EBB CANbus Setup") ](https://www.youtube.com/watch?v=EA-oBfenxAE) ---
**Author:** ![retnel](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/retnel/32/8786_2.png) [@retnel](https://klipper.discourse.group/u/retnel)\ **Post date:** [December 28, 2023, 6:10am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/34 "2023-12-28T06:10:52Z")
Heater pin inverted after pid tuning and restart… When other code is editing a printer config… ---
**Author:** ![irul\_elnasty](https://avatars.discourse-cdn.com/v4/letter/i/c77e96/32.png) [@irul\_elnasty](https://klipper.discourse.group/u/irul_elnasty)\ **Post date:** [January 5, 2024, 6:12pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/35 "2024-01-05T18:12:06Z")
how did you do that? I still don’t get the uuid, just the serial with my m8p v2.0 ---
**Author:** ![mykepredko](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/mykepredko/32/2085_2.png) [@mykepredko](https://klipper.discourse.group/u/mykepredko)\ **Post date:** [January 5, 2024, 9:21pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/36 "2024-01-05T21:21:27Z")
Please start a new thread - when you do can you list the steps that you followed and the responses that you see. ---
**Author:** ![GregNuspel](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/gregnuspel/32/4519_2.png) [@GregNuspel](https://klipper.discourse.group/u/GregNuspel)\ **Post date:** [January 21, 2024, 11:25pm UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/37 "2024-01-21T23:25:22Z")
I am in the same situation after a Klipper error indicated I had to update my firmware. So went so far down the rabbit hole that I eventually reflashed my CB1 and started over. I’m just wanting to make sure I have my configurations set properly. ![Katapult-MCU](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/b/b11aa179581b4ad4f876377f67548b6ba5e8dde5.png) ![Klipper-MCU](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/f/f3b78149727213ccec78264b10c3d03ca4d316f7.png) I use these commands to flash the MCU ```auto sudo dfu-util -a 0 -D ~/katapult/out/canboot.bin --dfuse-address 0x08000000:force:mass-erase -d 0483:df11 sudo dfu-util -a 0 -D ~/katapult/out/canboot.bin --dfuse-address 0x08000000 -d 0483:df11 sudo dfu-util -a 0 -D ~/klipper/out/klipper.bin --dfuse-address 0x08002000:force:leave -d 0483:df11 ``` I’m getting no joy at all right now so I figure I’ve got some ports or something wrong. I suspect it’s in katapult. ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [January 22, 2024, 12:15am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/38 "2024-01-22T00:15:42Z")
> [@retnel](#): > > tuning The katapult for the EBB: Processor on the EBB is STMG0B1 not STM32H723 that is the processor on the Manta M8P v2.0 Processor STMG0B1 Offset is 8Kib Clock is 8mhz ---
**Author:** ![KimHJ](https://avatars.discourse-cdn.com/v4/letter/k/d26b3c/32.png) [@KimHJ](https://klipper.discourse.group/u/KimHJ)\ **Post date:** [January 22, 2024, 12:17am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/39 "2024-01-22T00:17:38Z")
Look at this YouTube Video: [![](https://global.discourse-cdn.com/free1/uploads/klipper/original/2X/5/5111a884a74ef4ea8a1947448f3c26de776b2cc3.jpeg "Manta M8P+EBB CANbus Setup") ](https://www.youtube.com/watch?v=EA-oBfenxAE) ---
**Author:** ![GregNuspel](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/gregnuspel/32/4519_2.png) [@GregNuspel](https://klipper.discourse.group/u/GregNuspel)\ **Post date:** [January 22, 2024, 1:00am UTC](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259/40 "2024-01-22T01:00:26Z")
Yes it was my flashing the boot for the ebb that was killing me. Also `~/klippy-env/bin/python ~/klipper/scripts/canbus_query.py can0` worked great. [Previous page](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259.md?page=1) [Next page](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259.md?page=3)