Linux初心者として、本当にあなたの助けが必要です :/
trusted.gpg.dにあるフォルダを削除し/etc/apt/、 も削除しました/etc/apt/sources.list.d。
更新しようとすると、次のエラーが表示されます:
Err:2 LINKpt.archive.ubuntu.com/ubuntu focal-updates InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
Err:3 LINKpt.archive.ubuntu.com/ubuntu focal-backports InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
Err:4 LINKpt.archive.ubuntu.com/ubuntu focal-security InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
Err:5 LINKppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu focal InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg3>**
Get:9 LINKmaven.xwiki.org stable/ Packages [352 kB]
Reading package lists... Done
W: GPG error: LINKpt.archive.ubuntu.com/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
E: The repository 'LINKpt.archive.ubuntu.com/ubuntu focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: LINKpt.archive.ubuntu.com/ubuntu focal-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
E: The repository 'LINKpt.archive.ubuntu.com/ubuntu focal-updates InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: LINKpt.archive.ubuntu.com/ubuntu focal-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
E: The repository 'LINKpt.archive.ubuntu.com/ubuntu focal-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: LINKpt.archive.ubuntu.com/ubuntu focal-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg1>** NO_PUBKEY **<My_Key_Missingg2>**
E: The repository 'LINKpt.archive.ubuntu.com/ubuntu focal-security InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: LINKppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY **<My_Key_Missingg3>**
E: The repository 'http://ppa.launchpad.net/webupd8team/y-ppa-manager/ubuntu focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
注記 -この質問を送信できるように、http:// を LINK に変更しました。
私は次のような提案をいくつか試しました:
1 -apt install extundeleteファイルを回復します。そして、次のエラーが表示されます:E: Unable to locate package extundelete
2 - sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv-keys **<MY KEY>**(hkp:// ありとなしで試しました)
3 - apt-get install ubuntu-keyringNO_PUBKEYSに関する同様のエラー
4 -gpg --keyserver pgpkeys.mit.edu --recv-key **<MY KEY>**
gpg -a --export **<MY KEY>** | sudo apt-key addエラーが発生しました:gpg: keyserver receive failed: End of file; gpg: WARNING: nothing exported gpg: .: read error: Is a directory gpg: no valid OpenPGP data found.
5- これもすでに使ってみたがうまくいかなかった
sudo apt update 2>&1 1>/dev/null | sed -ne 's/.*NO_PUBKEY //p' | while read key; do if ! [[ ${keys[*]} =~ "$key" ]]; then sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys "$key"; keys+=("$key"); fi; done
誰か助けてくれませんか？