chmod: Operation not permitted

[Mark Ovens]

Gardner Bell wrote:
> After rebuilding world last night I can no longer chmod some system
> binaries that I don't need.  When attemtping to do so I get a permission denied. 
> root at Spartan# chmod 000 /bin/rcp
> chmod: /bin/rcp: Operation not permitted.
> 
> root at spartan# chmod 000 /bin/rlogin
> chmod: /bin/rlogin: Operation not permitted
> 
> The only binaries this seems to be happening with are the ones used
> for remote operations.  Ie: rcp, rlogin, rsh, opieinfo, etc.  I

All those have schg flag set on my RELENG_5 system (also, rlogin and rcp
are in /usr/bin, not /bin).

/home/mark{83}# ls -lo /bin/r* /usr/bin/r*
-r-sr-xr-x   1 root  wheel  schg  18388 13 Jan 09:50 /bin/rcp
-r-xr-xr-x   1 root  wheel  -      3668 13 Jan 09:50 /bin/realpath
-r-xr-xr-x   2 root  wheel  -     48832 13 Jan 09:50 /bin/red

....

-r-xr-xr-x   1 root  wheel  -     55748 13 Jan 09:51 /usr/bin/rlog
-r-sr-xr-x   1 root  wheel  schg  10804 13 Jan 09:52 /usr/bin/rlogin
-r-xr-xr-x   1 root  wheel  -     82296 13 Jan 09:52 /usr/bin/rpcgen
-r-xr-xr-x   1 root  wheel  -     30888 13 Jan 09:52 /usr/bin/rpcinfo
-r-xr-xr-x   1 root  wheel  -      9964 13 Jan 09:52 /usr/bin/rs
-r-sr-xr-x   1 root  wheel  schg   8800 13 Jan 09:52 /usr/bin/rsh
-r-xr-xr-x   1 root  wheel  -      6464 13 Jan 09:52 /usr/bin/rup
-r-xr-xr-x   1 root  wheel  -      7260 13 Jan 09:52 /usr/bin/ruptime
-r-xr-xr-x   1 root  wheel  -      6776 13 Jan 09:52 /usr/bin/rusers
-r-xr-xr-x   1 root  wheel  -      6500 13 Jan 09:52 /usr/bin/rwall
-r-xr-xr-x   1 root  wheel  -      6256 13 Jan 09:52 /usr/bin/rwho
/home/mark{84}#

Mark