see the title :-) Note: kernel 2.6.8.1 is a NFS bugfix for 2.6.8. It's not shown as latest kernel on kernel.org because of script problems. Will they change the version name? Or will some scripts need to be changed ?
*** Bug 61036 has been marked as a duplicate of this bug. ***
It seems to detect the version just fine here so I don't see any issue: if you still experience this bug, then please reopen it.
Indeed, everything works well - it was a user error :-) My apologies !