readonly mode when mounting a partition
I think we need a way to handle read only partitions. I think that every time somone tryes to write or change something on a partition there should be a callback to the FileSystem implementation for that partition and if the partition is readonly the user should get an error. is this possible? if not than we should have a standard exception like ReadOnlyFileSystemException that can be thrown in all write methods if the FS is readonly. And this exception can be processed somewhere else. What do you think?