sudo apt update

看看有什么报错？

报了

1 package can be upgraded. Run 'apt list --upgradable' to see it.

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udo apt list  --upgradable -a

Listing... 完成

linux-libc-dev/buster-backports 5.10.13-1~bpo10+1 amd64 [upgradable from: 5.9.15-1~bpo10+1]

linux-libc-dev/now 5.9.15-1~bpo10+1 amd64 [installed,upgradable to: 5.10.13-1~bpo10+1]

linux-libc-dev/unknown 5.4.70-amd64-desktop-1 amd64

-----

于是

sudo apt update && apt upgrade 

已有:1 http://dl.google.com/linux/chrome/deb stable InRelease

已有:2 https://repo.steampowered.com/steam stable InRelease                                                                       

已有:3 http://deb.debian.org/debian buster-backports InRelease                                                                    

已有:4 http://download.opensuse.org/repositories/home:/strycore/Debian_10 ./ InRelease                                            

已有:5 https://community-store-packages.deepin.com/appstore eagle InRelease                                                       

已有:6 https://community-packages.deepin.com/deepin apricot InRelease

已有:7 https://community-packages.deepin.com/printer eagle InRelease

正在讀取套件清單... 完成

正在重建相依關係       

正在讀取狀態資料... 完成

1 package can be upgraded. Run 'apt list --upgradable' to see it.

E: 無法開啟鎖定檔 /var/lib/dpkg/lock-frontend - open (13: 拒絕不符權限的操作)

E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?

 

 

看来是dpkg出问题

最后依这篇成功解决

感谢！