Bug 16059

Please attach your /root/drakx/report.bug.xz & the file resulting from running:
journalctl|egrep 'drakboot|os-prober|grub'>/tmp/journal.txt

Keywords: (none) => NEEDINFO

For report.bug, it is already here: 
https://bugs.mageia.org/attachment.cgi?id=6668
I must reboot to access the journal entries.

Journal is short and haven't such entries.
Papoteur

If journal is short then you didn't run "drakboot --boot"...

As for drakx, we did run the following command:
"grub2-set-default Mageia 4 (4) (sur /dev/sda5)"
which means we respect your choice.
So that would be a grub2 bug.

What happens if you manually run the following command?
grub2-set-default "Mageia 4 (4) (sur /dev/sda5)"

CC: (none) => zen25000
Blocks: (none) => 416
Source RPM: (none) => grub2

Before I run this command, I checkeddd the file /boot/grub2/grubenv.
Its content is:
# GRUB Environment Block
saved_entry=Mageia 4 (4) (sur /dev/sda5)
##########################################

The command grub2-set-default "Mageia 4 (4) (sur /dev/sda5)" gives no message when executed. Yet I will reboot to see if something is changed a boot.

s/a boot/at boot
There is no changes, the default entry is always the first line.

Barry:
grub.cfg contains "menuentry 'Mageia 4 (4) (sur /dev/sda5)' ..." (from os-prober).
However, depsite grub2-set-default "Mageia 4 (4) (sur /dev/sda5)" having altered  /boot/grub2/grubenv, this is not respected by grub2 on booting

Assignee: thierry.vignaud => zen25000
Summary: drakboot doesn't apply user-selected default entry when using grub2 => default entry set by drakboot isn't enforced by grub2

(In reply to Thierry Vignaud from comment #7)
> Barry:
> grub.cfg contains "menuentry 'Mageia 4 (4) (sur /dev/sda5)' ..." (from
> os-prober).
> However, depsite grub2-set-default "Mageia 4 (4) (sur /dev/sda5)" having
> altered  /boot/grub2/grubenv, this is not respected by grub2 on booting

Is grub2-mkconfig -o /boot/grub2/grub.cfg OR update-grub
run afterwards?

I have always used a GRUB_DEFAULT= entry in /etc/default/grub
(followed by grub2-mkconfig) for that purpose.

e.g.:
GRUB_DEFAULT="Windows Vista (loader) (on /dev/sda2)"

I have never used or tested grub2-set-default.

I can confirm that grub2-set-default does not seem to work, in fact I was not aware of it.

However I think it is more consistent to use the GRUB_DEFAULT variable in /etc/default/grub for this which does work correctly. (Keeping all configuration in one place)

I have just tested it in a clean Mga5 install and I also have a laptop that uses it with Mga5 with no problems.

@thierry
I just noticed that you were not cc'd on this.

CC: (none) => thierry.vignaud

That's easy to do (see attached patch).

However, grub2-set-default did worked at some stage, so there's some regression.
Also wouldn't GRUB_DEFAULT be overwritten if we boot another entry?
Wouldn't it be set back to GRUB_DEFAULT="saved"?

Created attachment 6706 [details]
set default grub2 entry in /etc/default/grub

Anyway, it would me much simpler this way

Created attachment 6707 [details]
grub.cfg diff

though it didn't work in my case: grub2-mkconfig introduced a bogus if block that messed up the default entry...
grub2 then default to first entry ("Mageia")

grub2 needs serious fixing...

(In reply to Thierry Vignaud from comment #11)
> That's easy to do (see attached patch).
> 
> However, grub2-set-default did worked at some stage, so there's some
> regression.
> Also wouldn't GRUB_DEFAULT be overwritten if we boot another entry?
> Wouldn't it be set back to GRUB_DEFAULT="saved"?

I have never seen that happen.

I have just been reading the docs and it seems that grub2-set-default should only work if GRUB_DEFAULT="saved".

It will not be changed on each boot as long as we don't have GRUB_SAVEDEFAULT set.

I will try to test this later.

Yes, that seems to work - so for the current use of grub2-set-default to work it needs to be combined with GRUB_DEFAULT="saved".

Hello,I confirm that 
grub2-set-default "Mageia 4 (4) (sur /dev/sda5)"
GRUB_DEFAULT="saved"
and update-grub
works to change the default entry.

Barry, no it doesn't work everywhere.
It doesn't work at all on my test VM. See comment #13

Source RPM: drakxtools => grub2, drakxtools

(In reply to Thierry Vignaud from comment #18)
> Barry, no it doesn't work everywhere.
> It doesn't work at all on my test VM. See comment #13

In comment 13 you were testing the use of just GRUB_DEFAULT not grub2-set-default.

Did you also test in VM using the same as papoteur in #17?

@Thierry
I just tested in a fully updated Mga5 VM (PC-BIOS) and it worked fine.

Was your test in A UEFI system or PC-BIOS?

On the last kernel update in Cauldron I noticed this:

--------snip-----------

removing upgraded package kernel-server-latest-4.3.2-2.mga6.x86_64
      1/3: removing kernel-server-latest-4.3.2-2.mga6.x86_64
                                 #############################################
removing upgraded package kernel-desktop-latest-4.3.2-2.mga6.x86_64
      2/3: removing kernel-desktop-latest-4.3.2-2.mga6.x86_64
                                 #############################################
removing upgraded package cpupower-4.3.2-2.mga6.x86_64
      3/3: removing cpupower-4.3.2-2.mga6.x86_64
                                 #############################################
Creating: target|kernel|dracut args|basicmodules 
Usage: grub2-set-default [OPTION] MENU_ENTRY
Set the default boot menu entry for GRUB.
This requires setting GRUB_DEFAULT=saved in /etc/default/grub.

  -h, --help              print this message and exit
  -v, --version           print the version information and exit
  --boot-directory=DIR    expect GRUB images under the directory DIR//grub2
                          instead of the /boot/grub2 directory

MENU_ENTRY is a number, a menu item title or a menu item identifier.

Report bugs to <bug-grub@gnu.org>.
Creating: target|kernel|dracut args|basicmodules 
Usage: grub2-set-default [OPTION] MENU_ENTRY
Set the default boot menu entry for GRUB.
This requires setting GRUB_DEFAULT=saved in /etc/default/grub.

  -h, --help              print this message and exit
  -v, --version           print the version information and exit
  --boot-directory=DIR    expect GRUB images under the directory DIR//grub2
                          instead of the /boot/grub2 directory

MENU_ENTRY is a number, a menu item title or a menu item identifier.

Report bugs to <bug-grub@gnu.org>.
removing installed rpms (kernel-desktop-4.4.0-0.rc6.2.mga6-1-1.mga6.x86_64.rpm kernel-server-4.4.0-0.rc6.2.mga6-1-1.mga6.x86_64.rpm kernel-desktop-latest-4.4.0-0.rc6.2.mga6.x86_64.rpm kernel-server-latest-4.4.0-0.rc6.2.mga6.x86_64.rpm cpupower-4.4.0-0.rc6.2.mga6.x86_64.rpm) from /var/cache/urpmi/rpms

-------snip------------

[baz@jackodesktop ~]$ cat /etc/default/grub
GRUB_ENABLE_CRYPTODISK=y
GRUB_GFXPAYLOAD_LINUX=auto
GRUB_GFXMODE=1024x768x32
GRUB_TERMINAL_OUTPUT=gfxterm
GRUB_CMDLINE_LINUX_DEFAULT=" splash quiet noiswmd resume=UUID=d0402b80-ef19-4956-9064-abe20fe77dc0"
GRUB_DISABLE_OS_PROBER=false
GRUB_THEME=/boot/grub2/themes/maggy/theme.txt
GRUB_DISABLE_SUBMENU=n
GRUB_DISABLE_RECOVERY=false
GRUB_DISTRIBUTOR=Mageia
GRUB_TIMEOUT=10

Maybe this should only be run if GRUB_DEFAULT=saved

commit ad128f02d165f26d7eec3781952f108efb588c67
Author: Thierry Vignaud <tvignaud@...>
Date:   Fri May 27 16:38:51 2016 +0200

    grub2: set GRUB_DEFAULT + GRUB_SAVEDEFAULT
    
    else grub2-set-default won't work (mga#9627, mga#16059)
    but do not overwrite it if user has changed its value
---
 Commit Link:
   http://gitweb.mageia.org/software/drakx/commit/?id=ad128f02d165f26d7eec3781952f108efb588c67

 Bug links:
   Mageia
      https://bugs.mageia.org/9627
      https://bugs.mageia.org/16059

Fixed in git

Status: NEW => RESOLVED
Resolution: (none) => FIXED