Bug#1114960: systemd-boot: please stop adding kernel entries to NVRAM

[Martin-Éric Racine]

Package: systemd-boot
Version: 257.8-1~deb13u2
Severity: normal
X-Debbugs-Cc: martin-eric.racine at iki.fi

Having recently migrated from GRUB-EFI to systemd-boot, one key difference is that while GRUB-EFI is perfectly happy being launched via the generic "UEFI OS" boot menu option in BIOS settings, systemd-boot seemingly insists on changing NVRAM entries every time a new Linux kernel is installed. Is there any way to stop that and just boot via the generic "UEFI OS" option in the firmware?

Thanks!
Martin-Éric

-- System Information:
Debian Release: 13.1
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security-debug'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.43+deb13-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8), LANGUAGE=fi:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages systemd-boot depends on:
ii  libc6               2.41-12
ii  libsystemd-shared   257.8-1~deb13u2
ii  systemd             257.8-1~deb13u2
ii  systemd-boot-efi    257.8-1~deb13u2
ii  systemd-boot-tools  257.8-1~deb13u2

Versions of packages systemd-boot recommends:
ii  efibootmgr   18-2
ii  shim-signed  1.47+15.8-1

Versions of packages systemd-boot suggests:
pn  systemd-ukify  <none>

-- no debconf information