Having issues with your DietPi installation, or, found a bug? Post it here.
Yep there is an open issue at GitHub regarding rootFS being R/O. There I provided a possible workaround.
Pls let us know if a solution is working. This could help others if they hit by similar situation. Your DietPi Team
Testing 6.30, the fix for the root filing system R/O bug seems to be working and I can now manipulate shares containing spaces without any obviouse issues. I will test further but it does seem to have fixed my issues.