default kernel

[Tom Horsley]

I got a kernel update in my F21 Branched system recently,
and I just noticed that the default boot is still set
to the original kernel.

There is all kinds of cryptic gibberish in grub.cfg
dealing with the environment file and saved entries
so I can't even tell exactly where the heck the default
is coming from, but the default selected in the menu
when I boot is the older kernel, so where ever it
is coming from, it is the wrong choice :-).

Is this a bug, or some sort of feature?

[Bruno Wolff III]

On Mon, Aug 18, 2014 at 08:28:39 -0400,
  Tom Horsley <horsley1953(a)gmail.com&gt; wrote:
> There is all kinds of cryptic gibberish in grub.cfg
> dealing with the environment file and saved entries
> so I can't even tell exactly where the heck the default
> is coming from, but the default selected in the menu
> when I boot is the older kernel, so where ever it
> is coming from, it is the wrong choice :-). 
Normally whether to use the lastest or previous kernel by default is 
set in /etc/sysconfig/kernel.

[Tom Horsley]

On Mon, 18 Aug 2014 07:59:53 -0500
Bruno Wolff III wrote:

>  Normally whether to use the lastest or previous kernel by default is
>
>  set in /etc/sysconfig/kernel. 
Well, I finally got a chance to check that file and it says:

UPDATEDEFAULT=yes
DEFAULTKERNEL=kernel-core

Not sure what the kernel-core setting means, but it definitely
looks as if UPDATEDEFAULT=yes was ignored.

[Bruno Wolff III]

On Mon, Aug 18, 2014 at 15:04:53 -0400,
  Tom Horsley <horsley1953(a)gmail.com&gt; wrote:
> On Mon, 18 Aug 2014 07:59:53 -0500
> Bruno Wolff III wrote:
>
> > Normally whether to use the lastest or previous kernel by default is
> > set in /etc/sysconfig/kernel.
>
> Well, I finally got a chance to check that file and it says:
>
> UPDATEDEFAULT=yes
> DEFAULTKERNEL=kernel-core
>
> Not sure what the kernel-core setting means, but it definitely
> looks as if UPDATEDEFAULT=yes was ignored. 
If you were using a PAE kernel, it would have had kernel-PAE-core (or 
kernel-PAE). This matters if you have both PAE and non-PAE kernels 
installed. (Previously SMP kernels used to be available as well.) It 
says which varient should be used for the default boot.

[Tom Horsley]

On Mon, 18 Aug 2014 14:28:45 -0500
Bruno Wolff III wrote:

>  If you were using a PAE kernel 
So I guess on a 64bit system it is essentially meaningless :-).

[Ed Greshko]

On 08/19/14 03:28, Bruno Wolff III wrote:
>  On Mon, Aug 18, 2014 at 15:04:53 -0400,
>   Tom Horsley <horsley1953(a)gmail.com&gt; wrote:
> > On Mon, 18 Aug 2014 07:59:53 -0500
> > Bruno Wolff III wrote:
> >
> >> Normally whether to use the lastest or previous kernel by default is
> >> set in /etc/sysconfig/kernel.
> >
> > Well, I finally got a chance to check that file and it says:
> >
> > UPDATEDEFAULT=yes
> > DEFAULTKERNEL=kernel-core
> >
> > Not sure what the kernel-core setting means, but it definitely
> > looks as if UPDATEDEFAULT=yes was ignored.
>
>  If you were using a PAE kernel, it would have had kernel-PAE-core (or kernel-PAE). This
> matters if you have both PAE and non-PAE kernels installed. (Previously SMP kernels used
> to be available as well.) It says which varient should be used for the default boot.
I don't yet have an F21 system.  But on an F20 system these are set to....

UPDATEDEFAULT=yes
DEFAULTKERNEL=kernel

If there is no package type of kernel-core then I suspect all bets are off as to the
behavior.

-- 
If you can't laugh at yourself, others will gladly oblige.

[Ahmad Samir]

On 19/08/14 01:15, Ed Greshko wrote:
>  On 08/19/14 03:28, Bruno Wolff III wrote:
> > On Mon, Aug 18, 2014 at 15:04:53 -0400,
> >   Tom Horsley <horsley1953(a)gmail.com&gt; wrote:
> >> On Mon, 18 Aug 2014 07:59:53 -0500
> >> Bruno Wolff III wrote:
> >>
> >>> Normally whether to use the lastest or previous kernel by default is
> >>> set in /etc/sysconfig/kernel.
> >>
> >> Well, I finally got a chance to check that file and it says:
> >>
> >> UPDATEDEFAULT=yes
> >> DEFAULTKERNEL=kernel-core
> >>
> >> Not sure what the kernel-core setting means, but it definitely
> >> looks as if UPDATEDEFAULT=yes was ignored.
> >
> > If you were using a PAE kernel, it would have had kernel-PAE-core (or kernel-PAE).
> This matters if you have both PAE and non-PAE kernels installed. (Previously SMP kernels
> used to be available as well.) It says which varient should be used for the default boot.
>
>  I don't yet have an F21 system.  But on an F20 system these are set to....
>
>  UPDATEDEFAULT=yes
>  DEFAULTKERNEL=kernel
>
>  If there is no package type of kernel-core then I suspect all bets are off as to the
> behavior.
>  
For F21 the kernel team have changed how the kernel packages are split: 
http://fedoraproject.org/wiki/Changes/Modular_Kernel_Packaging_for_Cloud

-- 
Ahmad Samir

[Ahmad Samir]

On 18/08/14 22:04, Tom Horsley wrote:
>  On Mon, 18 Aug 2014 07:59:53 -0500
>  Bruno Wolff III wrote:
>
> > Normally whether to use the lastest or previous kernel by default is
> > set in /etc/sysconfig/kernel.
>
>  Well, I finally got a chance to check that file and it says:
>
>  UPDATEDEFAULT=yes
>  DEFAULTKERNEL=kernel-core
>
>  Not sure what the kernel-core setting means, but it definitely
>  looks as if UPDATEDEFAULT=yes was ignored.
>  
Did you try reinstalling that latest kernel package? it could simply be 
the rpm post install scripts didn't run/finish properly the first time 
around..

-- 
Ahmad Samir