• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Issue Update failure

Setting up grub-efi-amd64-signed (1.187.6+2.06-2ubuntu14.4) ...
Installing grub to /boot/efi.
Installing for x86_64-efi platform.
grub-install: warning: Internal error.
grub-install: error: failed to register the EFI boot entry: Operation not
permitted.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess
returned error exit status 1
Same issue as reported by another user here: Issue - Failed to update Plesk. To solve this problem, you can send the update log to Plesk support.
It's not a Plesk issue, but related to your operating system. I suggest to look in Google for "failed to register the EFI boot entry: Operation not permitted". You will find many related entries.
 
But what exact command is Plesk issuing here that fails here. What command we can issue in bash to reproduce the error. Is this updating some Ubuntu package, can we not update it? Is this required?
 
Plesk isn't issueing any command that triggers that. It's an operating system issue. The problem is that with every apt, yum or dnf command, some system packages are also affected. Plesk only detects that there are errors during an installation process, regardless what their origin is.
 
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