Error Message

# mount -F vxfs -o norstchown /dev/vx/dsk/demodg/demovol /mnt
UX:vxfs mount: ERROR: V-3-21298: illegal -o suboption -- norstchown

The "norstchown" and "rstchown" mount-time options were implemented by Oracle in the mount_ufs binaries.  These options are not file system global options.

Because this has not been a previous requirement for VxFS  file systems as the feature has, up until recently, been a system level setting, no implementation for support of these options has been designed for VxFS.

This feature set is included from Storage  Foundation 6.0.1 release.

POSIX standards state that the owner of a file is restricted from changing the ownership of that file to another user, unless the user issuing the 'chown' is root. Solaris introduced a kernel option called "rstchown" (restricted chown) and allowed users to set this option as 0 in /etc/system to enable file ownership changes for non-root users. Oracle has identified this as a security flaw and is migrating the feature to be a per-filesystem specification that can be set during mount as an option, removing the ability to set this at the kernel level. VxFS  does not support this option yet so attempts to mount with "-o norstchown" will fail.

ETrack: 2752084