大家好：我在 Canonical-Ubuntu-20.04-aarch64 / oracle cloud / ssh 上
我正在尝试更新和升级存储库，但遇到了这个问题。请帮帮我，我是菜鸟。
Err:1 http://ports.ubuntu.com/ubuntu-ports focal-security InRelease
Cannot initiate the connection to ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to ports.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to ports.ubuntu.com:80 (185.125.190.36), connection timed out
Err:2 http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports focal InRelease
Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (185.125.190.36), connection timed out
Err:3 http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports focal-updates InRelease
Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable)
Err:4 http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports focal-backports InRelease
Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable)
Reading package lists... Done
W: Failed to fetch http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports/dists/focal/InRelease Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (185.125.190.36), connection timed out
W: Failed to fetch http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports/dists/focal-updates/InRelease Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable)
W: Failed to fetch http://uk-london-1-ad-3.clouds.ports.ubuntu.com/ubuntu-ports/dists/focal-backports/InRelease Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to uk-london-1-ad-3.clouds.ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable)
W: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/focal-security/InRelease Cannot initiate the connection to ports.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Cannot initiate the connection to ports.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to ports.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to ports.ubuntu.com:80 (185.125.190.36), connection timed out
W: Some index files failed to download. They have been ignored, or old ones used instead.