RRF3.5.0b3 - dsf/spidev files disappeared after powercycle?

fractalengineer

Duet 3 MB6HC + SBC Pi 3B+

The machine seemed to be doing well after upgrading from 3.4,

but after connecting my Accelerometer (proven working with accurate return after M955 P0) I couldn't see the reports in the plugin even through they seemed properly created and showing in the file system
(Similar to https://forum.duet3d.com/topic/32221/3-5-0-beta-3-input-shaping-not-displaying-files)

However, deleting the accelerometer logs from /sys didn't fix the above issue

Moreso, after a powercycle, it would not connect to the board anymore

Here's the error message:

I do have access to the SBC through

Investigating further, it seems that the spidev files are gone; nowhere to be found

update/upgrade doesn't seem to help repairing/repopulating the missing files

Any tips to fix it?

Thanks!

Cheers,

__Yves

Phaedrux

Can you try re-installing the input shaping plugin?

fractalengineer

@Phaedrux I have no access to DWC the interface is greyed out, the machine is inoperable

chrishamm

@fractalengineer It sounds like your first FAT partition was corrupted. There should be several overlay files on the first FAT partition and a config.txt to enable them, if they're damaged or missing, the SPI node would not be created on start. Perhaps try to update your base system via rpi-update and check if that fixes it. If it doesn't, perhaps reinstalling the Linux package will fix it again.

@Phaedrux The IS plugin has nothing to do with this error.

fractalengineer

@chrishamm Thanks, a corrupted sd card would be my guess too; it seems quite a few more files in /dev/ seem to be missing over a fresh install on another card

Also my custom resolution was gone after the event.

well it looks like rpi-update didn't resolve it and I'm going to need a reinstall...

fortunately my system files appear unscathered

Is there anything I could have done that might have caused the issue? I'm pretty sure the machine was idling when I turned it off before the issue appeared

Is there anything I could do in the future to prevent it?

Thanks

chrishamm

@fractalengineer Perhaps a power loss during an upgrade, hard to say. If you replace the microSD card, consider replacing it with an A1- or A2-rated microSD card. They are generally more robust and faster for frequent random IO which is something an SBC does more frequently than a Duet in standalone mode.

fractalengineer

@chrishamm Okay this was a A1 card that passed the SD Card test

Well although this might have been a nofix I've redone a fresh install and the machine is operational again.

Regardless, the input shaping plugin still doesn't display the plots, even after deleting the sys/accelerometer folder

Perhaps a beta bug?

chrishamm

@fractalengineer There is a bug in 3.5-b3 preventing the display of some graphs. A fix will be included in b4.

fractalengineer

@chrishamm resolved in b4, thank you