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grub-efi-AMD64-signedをアップグレードできません

The following packages have been kept back: grub-efi-AMD64-signed

このエラーは数週間続きました。誰かがその理由を知っていますか？

編集：

laserpirate@base:~$ Sudo apt update
Reading package lists... Done                     
Building dependency tree       
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
laserpirate@base:~$ Sudo apt upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
grub-efi-AMD64-signed
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
laserpirate@base:~$ Sudo apt dist-upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
grub-efi-AMD64-signed
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
laserpirate@base:~$
16.0464-bitlenovoideapad
1
laserpirate

リポジトリパッケージとキャッシュをアップグレードおよび更新します。次のコマンドを実行します。

$ Sudo apt update
$ Sudo apt upgrade
$ Sudo apt dist-upgrade

更新：

これらのコマンドを1つずつ実行します。

$ Sudo apt install --reinstall grub
$ Sudo apt install --reinstall grub2-common
$ Sudo apt install --reinstall grub-efi-AMD64
$ Sudo apt install --reinstall grub-efi-AMD64-bin
$ Sudo apt autoremove
$ Sudo apt install grub-efi-AMD64-signed
0
L. D. James