Hi Jasion, On Fri, Oct 16, 2009 at 6:57 AM, Jason Noakes <jjnoakes@xxxxxxxxx> wrote: > This is what I see on my system (I have manpages-dev-3.15-1 installed on > Ubuntu): > > EPERM The calling process is not privileged (does not have the > CAP_SETGID capability), and gid does not match the effective > group ID or saved set-group-ID of the calling process. > > I believe "does not match the effective group ID" should read "does not > match the real group ID", according to POSIX. You just found a bug that's been present in the man page for 15 years (since man-pages-1.4), and a bug that has security implications even. Nice! Fixed for man-pages-3.24. Thanks! Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface" http://blog.man7.org/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html