Thanks again Akemi.
When I looked at the bugzilla there was a new fix (for /usr/share/grub/grub-mkconfig_lib) suggested today that worked for me.
Regards
Bill Maidment
-----Original message-----
> From:Akemi Yagi <[log in to unmask]>
> Sent: Thursday 9th October 2014 23:51
> To: Users, Scientific Linux ([log in to unmask]) <[log in to unmask]>
> Subject: Re: SL7rc2 grub2 setting wrong kernel version as default after a kernel update
>
> On Thu, Oct 9, 2014 at 3:20 AM, Bill Maidment <[log in to unmask]> wrote:
> > After a yum update the latest kernel is set as the second entry rather than the first entry in the boot menu.
> > This seems to be because it sorts the kernel name using a simple alpha-numeric test rather than a more intelligent version number test
>
> What you are seeing is a known bug as detailed in this upstream bugzilla:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1124074
>
> Akemi
>
>