sudo apt update
Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 https://download.docker.com/linux/ubuntu focal InRelease
Hit:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:5 http://dell.archive.canonical.com focal InRelease
Hit:6 http://archive.ubuntu.com/ubuntu focal-security InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Hit:8 https://cloud.r-project.org/bin/linux/ubuntu focal-cran40/ InRelease
Hit:9 https://packages.microsoft.com/ubuntu/18.04/mssql-server-2019 bionic InRelease
Hit:11 http://ppa.launchpad.net/obsproject/obs-studio/ubuntu focal InRelease
Get:10 https://packages.element.io/debian default InRelease [3,609 B]
Err:10 https://packages.element.io/debian default InRelease
The following signatures were invalid: EXPKEYSIG C2850B265AC085BD riot.im packages <[email protected]>
Fetched 3,609 B in 2s (1,561 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
384 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://packages.element.io/debian default InRelease: The following signatures were invalid: EXPKEYSIG C2850B265AC085BD riot.im packages <[email protected]>
W: Failed to fetch https://packages.riot.im/debian/dists/default/InRelease The following signatures were invalid: EXPKEYSIG C2850B265AC085BD riot.im packages <[email protected]>
W: Some index files failed to download. They have been ignored, or old ones used instead.
有人可以把这个翻译成英语吗？我正在使用 ubuntu 20.04。