问题遇到的现象和发生背景
**root@orangepizero2:~/demo1# sudo apt-get update**
Get:1 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy InRelease [270 kB]
Get:2 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-security InRelease [129 kB]
Err:1 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy InRelease
Unknown error executing apt-key
Get:3 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-updates InRelease [128 kB]
Err:2 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-security InRelease
Unknown error executing apt-key
Get:4 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-backports InRelease [127 kB]
Err:3 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-updates InRelease
Unknown error executing apt-key
Err:4 http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-backports InRelease
Unknown error executing apt-key
Reading package lists... Done
W: GPG error: http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy InRelease: Unknown error executing apt-key
E: The repository 'http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy 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: http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports jammy-security InRelease: Unknown error executing apt-key
upadate报这么一堆错什么情况，下载东西也会说locate不到。
操作环境、软件版本等信息
ubantu
ARM64 OrangepiZero2
