Comment # 5 on bug 1194075 from VisualLab

I reinstalled Linux OpenSuse Leap 15.3. Then I restarted my computer and booted
into Linux Kubuntu 21.10. I installed Grub Customizer on it. With it, I
supplemented the boot menu with a section that allows you to select Linux
OpenSuse. I saved the changes to the boot menu. I restarted my computer and
chose Linux OpenSuse to run. The system has booted up and is working properly.
I tried to modify a boot menu entry from within YAST. When trying to save the
changes, the following message was displayed:

  Unable to execute [["/usr/sbin/grub2-install","--target=/x86_64-efi",
"--force", 
                      "--skip-fs-probe"]]
  Exit code: 1
  Error message: Installing for x86_64-efi.
  Could not prepare Boot variable: Success
  /usr/sbin/grub2-install: error: efibootmgr failed to register the boot entry:
  Input/Output error

I restarted my computer and went to UEFI settings: "Boot -> UEFI Hard Disk
Drive BBS Priorities". There are 4 items in this option. The first one decides
which boot loader will be run. I chose the entry: "opensuse". I saved the
changes to UEFI settings. After the computer restarts, Linux OpenSuse starts
automatically. Unfortunately, there is no boot menu. After starting the
above-mentioned system, I tried to modify the boot menu entries, but the effect
is the same as described above. So I abandoned the idea of creating a boot menu
based on "GRUB2 for UEFI". I will choose the system to run in UEFI.

Additionally, when I started Linux OpenSuse for the first time, it turned out
that the system does not support audio. This is the same problem as with Linux
Kubuntu. Searching this case on the Internet shows that this situation occurs
in virtually every newer Linux distribution. This is caused by invalid entries
in Linux configuration files when it is installed on Intel-based (SoC)
computers that have integrated audio support. I solved the problem similarly to
Linux Kubuntu, based on the description from the website:

https://www.linuxuprising.com/2018/06/fix-no-sound-dummy-output-issue-in.html

After making changes to the configuration files and rebooting the computer, the
sound works fine.

Due to the fact that probably very few people use such computers as described
by me, it is unprofitable to investigate the cause of the problem with saving
settings. So it is probably best to archive and disable (or delete) this
report.