Hello Everyone, just now I changed from 'jffs2' to 'yaffs'. Up to now no problems occurred during compiling and setting up my embedded system with 'yaffs' NAND flash partitions in combination with kernel 2.4.25. The MTD driver is working fine. Installing and mounting 'yaffs' partitions performed very well. No errors when reading from or writing to 'yaffs' partitions. As far as good! Unfortunately at the end of the day one problem came up. All files or directories I create as user (not 'root') are assigned to 'root'. For example if I am user 'abc' and I create a file or if I transfer a file via FTP to the 'yaffs' partition to any directory which doesn't belong to group or user 'root', I always get assigned user and group 'root' to that file. After that I can change permissions, user and group. Even if I use the setgid and setuid flags (6755) of a directory which belongs to user 'abc' and group 'xyz' and where I create or transfer a file, the result is always the same. The new file belongs to 'root'. It seems that after remounting everything is fine. My expectation was that 'yaffs' handles the file/directory attributes in same way like other file systems. Maybe I am wrong? Any idea what's going wrong? Hints in this regard are appreciated. Thanks, Frank