Add extra config line for UEFI with ReaR to work

[tahliar]

Description

Added SECURE_BOOT_BOOTLOADER="/boot/efi/EFI/BOOT/shim.efi" to UEFI list item in ReaR chapter.

Backports

• To maintenance/SLEHA15SP4
• To maintenance/SLEHA15SP3
• To maintenance/SLEHA15SP2
• To maintenance/SLEHA15SP1
• To maintenance/SLEHA15
• To maintenance/SLEHA12SP5
• To maintenance/SLEHA12SP4

References

jsc#DOCTEAM-733
bsc#1203051

[tahliar]

UEFI item now looks like this:

[jsmeix]

@tahliar
there are two related but separated cases when a system boots with a UEFI boot loader:
With and without Secure Boot.
The previous text only described the case when a system boots with a UEFI boot loader without Secure Boot.
I suggest to add a separated text when a system boots with a UEFI boot loader with additional Secure Boot.
E.g. something like

* When your system is booted with UEFI.
  If your system boots with a UEFI boot loader,
  install the package ebiso
  and add the following line
  into /etc/rear/local.conf:
    ISO_MKISOFS_BIN="/usr/bin/ebiso"
  If your system boots with UEFI and Secure Boot
  additionally add the following line
  into /etc/rear/local.conf:
    SECURE_BOOT_BOOTLOADER="/boot/efi/EFI/sles/shim.efi"
  In general regarding boot loader
  see the various ReaR configuration variables
  about BOOTLOADER, UEFI and SECURE_BOOT
  in /usr/share/rear/conf/default.conf
  e.g. USING_UEFI_BOOTLOADER and others.

According to
https://en.wikipedia.org/wiki/UEFI#SECURE-BOOT
and
https://en.wikipedia.org/wiki/UEFI#Secure_Boot_criticism
the spelling is 'Secure Boot' (i.e. capitalized).

[tahliar]

@tahliar there are two related but separated cases when a system boots with a UEFI boot loader: With and without Secure Boot. The previous text only described the case when a system boots with a UEFI boot loader without Secure Boot. I suggest to add a separated text when a system boots with a UEFI boot loader with additional Secure Boot. E.g. something like

* When your system is booted with UEFI.
  If your system boots with a UEFI boot loader,
  install the package ebiso
  and add the following line
  into /etc/rear/local.conf:
    ISO_MKISOFS_BIN="/usr/bin/ebiso"
  If your system boots with UEFI and Secure Boot
  additionally add the following line
  into /etc/rear/local.conf:
    SECURE_BOOT_BOOTLOADER="/boot/efi/EFI/sles/shim.efi"
  In general regarding boot loader
  see the various ReaR configuration variables
  about BOOTLOADER, UEFI and SECURE_BOOT
  in /usr/share/rear/conf/default.conf
  e.g. USING_UEFI_BOOTLOADER and others.

According to https://en.wikipedia.org/wiki/UEFI#SECURE-BOOT and https://en.wikipedia.org/wiki/UEFI#Secure_Boot_criticism the spelling is 'Secure Boot' (i.e. capitalized).

Thank you! I will add this in.

[tahliar]

New version:

[jsmeix]

Looks good to me.