F12 -> F14 (via preupgrade), not so smooth

Ryan O'Hara rohara at redhat.com
Mon Nov 15 18:34:02 UTC 2010


On Mon, Nov 15, 2010 at 10:42:17AM -0700, stan wrote:
> On Sun, 14 Nov 2010 21:25:08 -0600
> "Ryan O'Hara" <rohara at redhat.com> wrote:
> 
> > Those messages on the console (with the timestamp) are from
> > dmesg. These are visible on the console in F14 because rc.sysinit no
> > longer sets the dmesg logging level, thus all messages from dmesg end
> > up being written to the console. See dmesg(1) for more
> > information. If you have an older Fedora machine handy you can look at
> > rc.sysinit where you will find the following:
> > 
> > Fix console loglevel
> > if [ -# n "$LOGLEVEL" ]; then
> >       /bin/dmesg -n $LOGLEVEL
> > fi
> > 
> > This is missing from F14.
> > 
> > I'm of the opinion that this should be fixed. Printing dmesg messages
> > to the console by default is too much.
> > 
> > I was able to get things back to normal by adding 'dmesg -n 3' to
> > rc.sysinit. If there is a better way, please let me know. Also, if
> > there is a compelling reason that this was removed from F14, I'd be
> > interested to know what that reason is.
> 
> Thank you for posting this.

Happy to help.

> I used the above with an else in case $LOGLEVEL wasn't defined.  I
> assume that is the reason it was dropped, but if it still exists, I'll
> use it.

I believe $LOGLEVEL was defined in /etc/sysconfig/init, but I am not
completely sure. That file still exists on F14, but LOGLEVEL is no
longer defined, as you found out.

> #Fix console loglevel
> if [ -# n "$LOGLEVEL" ]; then
>       /bin/dmesg -n $LOGLEVEL
> else
>       /bin/dmesg -n 3
> fi

That will work.

I still don't understand why it was removed. Hoping someone can
enlighten me.

Ryan


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