Hello Carsten, Carsten Rose: > probably I missed something: I would like to overlay a read only mounted > nfs share with a local directory. That's fine, including writing in the > overlay directory itself. But if write to a sub directory of the > overaly, I get 'Operation not supported'.
I guess your problem may be related to XATTR or posic ACL, especially when your nfs is NFSv4. Try the branch attribute 'icex' and others. Also, you had better to check 'acl' mount option for both of aufs and nfs branch. J. R. Okajima