SLES12 update missing menu

SUSE Linux Enterprise Server SLES Updates
1

SLES12 update using zypper. Reboot system and lost first boot menu.
Ran mkinitrd and zipl but menu did not return although messages stated they were rebuilt!
Executed:
grub2-mkconfig -o /boot/grub2/grub.cfg
grub2-zipl-setup

Using config file ‘/boot/zipl/config’ (from command line)
Building bootmap in ‘/boot/zipl’
Building menu ‘menu’
Adding #1: IPL section ‘grub2’ (default)
Adding #2: IPL section ‘skip-grub2’
Preparing boot device: dasdf (15c0).
Done.

2

mikenash,

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3

I found the solution! The update has modified the file /etc/default/zipl2grub.conf.in. I change two values:
plymouth.enable=0 to plymouth.enable=1
prompt = 0 to prompt = 1.
Then executed grub2-zipl-setup
I would expect that this is a defect because this menu is specific to the behavior of this operation system. A update should never modify an expected behavior.

4

[QUOTE=mikenash;29442]I found the solution! The update has modified the file /etc/default/zipl2grub.conf.in. I change two values:
plymouth.enable=0 to plymouth.enable=1
prompt = 0 to prompt = 1.
Then executed grub2-zipl-setup
I would expect that this is a defect because this menu is specific to the behavior of this operation system. A update should never modify an expected behavior.[/QUOTE]
Thanks for reporting back! Could you please open a Service Request or bug for this? Our s/390 team would like to look into it.

5

Bug 128039 - SUSE944382- SLES12 Update missing menu & grub2-zipl-setup

6

Bug 128039 - SUSE944382- SLES12 Update missing menu & grub2-zipl-setup
I found the solution! The update has modified the file /etc/default/zipl2grub.conf.in. I change two values:
plymouth.enable=0 to plymouth.enable=1
prompt = 0 to prompt = 1.
Then executed grub2-zipl-setup
I would expect that this is a defect because this menu is specific to the behavior of this operation system. A update should never modify an expected behavior.