.Changing a failed bootable device
-Depending on how {pve} was installed it is either using `proxmox-boot-tool`
+Depending on how {pve} was installed it is either using `systemd-boot` or `grub`
+through `proxmox-boot-tool`
footnote:[Systems installed with {pve} 6.4 or later, EFI systems installed with
{pve} 5.4 or later] or plain `grub` as bootloader (see
xref:sysboot[Host Bootloader]). You can check by running:
bootable disks setup by the {pve} installer since version 5.4. For details, see
xref:sysboot_proxmox_boot_setup[Setting up a new partition for use as synced ESP].
-.With `grub`:
+.With plain `grub`:
----
# grub-install <new disk>
----
+NOTE: plain `grub` is only used on systems installed with {pve} 6.3 or earlier,
+which have not been manually migrated to using `proxmox-boot-tool` yet.
+
Configure E-Mail Notification
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