Files corrupt? Cannot access main.py

[zmaier24]

Hello,

i am using a Pyboard V1.1 and since yesterday i cannot access the main.py file anymore.
All others files are fine.
Any idea how to fix this?

Best wishes
Martin

[robert-hh]

Probably the file system is corrupt and has to be rebuilt. That happens when both the PC and the board write to the file system, or the board was not properly ejected after writing from the PC.
To avoid trouble like that, configure the board to NOT have msc support and use mpremote to tansfer files. See pyb.usb_mode at https://docs.micropython.org/en/latest/library/pyb.html?highlight=msc

[zmaier24]

Thx for the fast reply.
So pyb.usb_mode("VCP") should disable the msc. Perfect, but how can i rebuild the FS? Any change to restore the file, i know backup, but my backup was propably not the last version 😉

[robert-hh]

You can recreate the file system, but all files are lost. See https://docs.micropython.org/en/latest/pyboard/tutorial/reset.html chapter 7.2.

[zmaier24]

Thank you!!!