chris@devel:~⟫ sudo -s root@devel:~# cd /usr/sbin root@devel:/usr/sbin# ln uuidd uuidd.bak ln: failed to create hard link ‘uuidd.bak’ => ‘uuidd’: Operation not permitted
chris@devel:~⟫ sudo -s /usr/sbin# ln uuidd uuidd.bak
root@devel:~# cd /usr/sbin
root@devel:
ln: failed to create hard link ‘uuidd.bak’ => ‘uuidd’: Operation not permitted