# update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-6.14.11-1-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.

Removable bootloader found at '/boot/efi/EFI/BOOT/BOOTX64.efi', but GRUB packages not set up to update it!
Run the following command:

echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u

Then reinstall GRUB with 'apt install --reinstall grub-efi-amd64'

Updating kernel version 6.14.11-1-pve in systemd-boot...
update-initramfs: Generating /boot/initrd.img-6.14.8-2-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.

Removable bootloader found at '/boot/efi/EFI/BOOT/BOOTX64.efi', but GRUB packages not set up to update it!
Run the following command:

echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u

Then reinstall GRUB with 'apt install --reinstall grub-efi-amd64'

Updating kernel version 6.14.8-2-pve in systemd-boot...
update-initramfs: Generating /boot/initrd.img-6.8.12-13-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.

Removable bootloader found at '/boot/efi/EFI/BOOT/BOOTX64.efi', but GRUB packages not set up to update it!
Run the following command:

echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u

Then reinstall GRUB with 'apt install --reinstall grub-efi-amd64'

Updating kernel version 6.8.12-13-pve in systemd-boot...
Automatic installation of modules for kernel 6.8.12-13-pve was skipped since the kernel headers for this kernel do not seem to be installed.
update-initramfs: Generating /boot/initrd.img-6.5.13-6-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.

Removable bootloader found at '/boot/efi/EFI/BOOT/BOOTX64.efi', but GRUB packages not set up to update it!
Run the following command:

echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u

Then reinstall GRUB with 'apt install --reinstall grub-efi-amd64'

Updating kernel version 6.5.13-6-pve in systemd-boot...
Automatic installation of modules for kernel 6.5.13-6-pve was skipped since the kernel headers for this kernel do not seem to be installed.
update-initramfs: Generating /boot/initrd.img-6.5.11-4-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.

Removable bootloader found at '/boot/efi/EFI/BOOT/BOOTX64.efi', but GRUB packages not set up to update it!
Run the following command:

echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u

Then reinstall GRUB with 'apt install --reinstall grub-efi-amd64'

Updating kernel version 6.5.11-4-pve in systemd-boot...
Automatic installation of modules for kernel 6.5.11-4-pve was skipped since the kernel headers for this kernel do not seem to be installed.

Je vais donc faire le fix proposé :

# echo 'grub-efi-amd64 grub2/force_efi_extra_removable boolean true' | debconf-set-selections -v -u
info: Trying to set 'grub2/force_efi_extra_removable' [boolean] to 'true'
info: Loading answer for 'grub2/force_efi_extra_removable'
# apt install --reinstall grub-efi-amd64
...
# update-initramfs -u -k all
update-initramfs: Generating /boot/initrd.img-6.14.11-1-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.
Updating kernel version 6.14.11-1-pve in systemd-boot...
update-initramfs: Generating /boot/initrd.img-6.14.8-2-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.
Updating kernel version 6.14.8-2-pve in systemd-boot...
update-initramfs: Generating /boot/initrd.img-6.8.12-13-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.
Updating kernel version 6.8.12-13-pve in systemd-boot...
Automatic installation of modules for kernel 6.8.12-13-pve was skipped since the kernel headers for this kernel do not seem to be installed.
update-initramfs: Generating /boot/initrd.img-6.5.13-6-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.
Updating kernel version 6.5.13-6-pve in systemd-boot...
Automatic installation of modules for kernel 6.5.13-6-pve was skipped since the kernel headers for this kernel do not seem to be installed.
update-initramfs: Generating /boot/initrd.img-6.5.11-4-pve
Running hook script 'zz-proxmox-boot'..
Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace..
No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync.
Updating kernel version 6.5.11-4-pve in systemd-boot...
Automatic installation of modules for kernel 6.5.11-4-pve was skipped since the kernel headers for this kernel do not seem to be installed.

J’espère pas avoir de problème après le reboot.