Hi A while back I opened up https://bugzilla.kernel.org/show_bug.cgi?id=195113 describing a documentation problem in https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt but for whatever reason, it hasn't been seen. The problem is that it says "The lower filesystem can be any filesystem supported by Linux" however, this is not the case, as Linux supports vfat, and vfat doesn't work as a lower filesystem So there's no way to tell what filesystems are applicable for an overlay lowerfs, and I don't think any existing userspace utilities can detect it. Could it be possible for the .txt file to be updated? Thanks
