Hi David,
On 14-Feb-00 David Wolfskill wrote:
> I discovered this under 3.4-R, and checked that it's still the case
> for 4.0-RC.
>
> I'm putting together a box that has no reason whatsoever to use or
> provide any NFS services at all.
>
> It was thus with a sense of "POLA violation" that I happened across the
> message
>
> Mounting NFS file systems
>
> in the boot-up messages.
>
>
> Turns out that the stanza that generates that (in /etc/rc) looks like:
>
> echo -n "Mounting NFS file systems"
> mount -a -t nfs
> echo .
>
> ...as in, this isn't conditional on anything.
It is conditional, in such as -t is used for mount. The arg '-t nfs' tells
us that only nfs filesystems are mounted in this pass of mount. If you
don't have any nfs file systems listed in /etc/fstab it won't do anything.
Perhaps it should be testing the success or failure of the nfs mount and
echo an appropriate message to avoid any confusion.
> OK; fine. Maybe I'm not a programmer (any more), but this seems to
> work OK:
>
> -----%<----------------
>
> --- rc Tue Feb 8 22:32:40 2000
> +++ /tmp/rc Mon Feb 14 14:11:01 2000
> @@ -191,9 +191,14 @@
> network_pass1
> fi
>
> -# Mount NFS filesystems.
> -echo -n "Mounting NFS file systems"
> -mount -a -t nfs
> +case ${nfs_client_enable} in
> +[Yy][Ee][Ss])
> + # Mount NFS filesystems.
> + echo -n "Mounting NFS file systems"
> + mount -a -t nfs
> + ;;
> +esac
> +
> echo .
>
> # Whack the pty perms back into shape.
>
> ----->%----------------
>
> Downside is that it's possible that there are machines that actually *do*
> act as NFS clients, even though nfs_client_enable is not set affirmatively.
> Then again, it could be argued that a new release would be one of the
> better times to make this kind of change, eh...? :-)
>
I guess you can do the previous, but I'd be a bit wary. If you have a look
in /etc/rc.network nfs_client_enable runs the nfsiod 'helper' app. Someone
may have the need to mount nfs filesystems without also using nfsiod. If you
*really* need to make this more conditional (essentially removing the echo)
I'd say create a new varible in /etc/rc.conf (mount_nfs_systems="YES"??) and
test on that.
Best Regards
Kent Ibbetson
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