grub entry

[Patrick Dupre]

Hello,

On one machine, when booting and entering in grub menu to choice the OS, it points on the 4th one
and not on the 1st one.

How can I manage this ?

Thank

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]
===========================================================================

[stan]

On Sun, 16 Jun 2019 16:10:21 +0200
"Patrick Dupre"  wrote:
> On one machine, when booting and entering in grub menu to choice the
> OS, it points on the 4th one and not on the 1st one.
>
> How can I manage this ?

I've never had that happen.  Bizarre!  If it happened to me I would
check /etc/default/grub to be sure that the grub defaults are what I
want, and then run
grub2-mkconfig -o grub.cfg
in the directory where grub.cfg is.

[Oleg Cherkasov]

On 16.06.2019 16:29, stan via users wrote:
> On Sun, 16 Jun 2019 16:10:21 +0200
> "Patrick Dupre"  wrote:
> > On one machine, when booting and entering in grub menu to choice the
> > OS, it points on the 4th one and not on the 1st one.
> >
> > How can I manage this ?
>
> I've never had that happen.  Bizarre!  If it happened to me I would
> check /etc/default/grub to be sure that the grub defaults are what I
> want, and then run
> grub2-mkconfig -o grub.cfg
> in the directory where grub.cfg is.

Check if you have GRUB_DEFAULT=saved in /etc/default/grub and what entry 
is printed: grub-editenv list  ?

[Tom Horsley]

On Sun, 16 Jun 2019 16:10:21 +0200
Patrick Dupre wrote:
> On one machine, when booting and entering in grub menu to choice the OS, it points on the 4th one
> and not on the 1st one.

No doubt the "default" boot is set in the grub environment file.
Investigate the grub2-editenv tool to list and edit the
environment. Here's what "list" shows for me:

zooty> sudo grub2-editenv - list
kernelopts=root=UUID=fb156e65-9621-4242-b334-0994a1301b04 ro selinux=0 audit=0 net.ifnames=0 biosdevname=0
saved_entry=gnulinux-5.0.9-301.fc30.x86_64-advanced-fb156e65-9621-4242-b334-0994a1301b04
menu_auto_hide=0
boot_success=1
boot_indeterminate=0

That saved_entry is probably the one it is stuck on.

[Patrick Dupre]

It has be solved by running
grub2-mkconfig -o grub.cfg
and
grub2-install /dev/sda

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]
===========================================================================
> On 16.06.2019 16:29, stan via users wrote:
> > On Sun, 16 Jun 2019 16:10:21 +0200
> > "Patrick Dupre"  wrote:
> > > On one machine, when booting and entering in grub menu to choice the
> > > OS, it points on the 4th one and not on the 1st one.
> > >
> > > How can I manage this ?
> >
> > I've never had that happen.  Bizarre!  If it happened to me I would
> > check /etc/default/grub to be sure that the grub defaults are what I
> > want, and then run
> > grub2-mkconfig -o grub.cfg
> > in the directory where grub.cfg is.
>
> Check if you have GRUB_DEFAULT=saved in /etc/default/grub and what entry 
> is printed: grub-editenv list  ?
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