Error 1000 When Migrating to LittleFS

[eatnumber1]

After running the migratefs command and downloading the index.html.gz page, I'm presented with an "ERROR 1000" message.

After this point the /index.html page is inaccessible.

After about ten minutes of waiting (in case it was doing the update anyway), I rebooted the console. After a reboot, the /index.html page is accessible again, and an ls shows that I'm still on SPIFFS.

Poking around the code, it looks as if error code 1000 happens when the LittleFS.format() call fails. Is there an easy way to get better debugging information? Any recommended ways to resolve the issue?