Parei a atualização de software regular e abri o dia seguinte para continuar e o wifi não estava funcionando, então eu pesquisei por solução e tentei de tudo, mas não consegui resolvê-lo. Não sei se estraguei tudo sem conhecimento claro. Eu preciso de ajuda.
com este comando sudo apt update recebo Err:1 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Could not resolve 'us.archive.ubuntu.com'
Err:2 http://security.ubuntu.com/ubuntu xenial-security InRelease
Could not resolve 'security.ubuntu.com'
Err:3 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease
Could not resolve 'us.archive.ubuntu.com'
Err:4 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease
Could not resolve 'us.archive.ubuntu.com'
Reading package lists... Done
Building dependency tree
Reading state information... Done
50 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Could not resolve 'us.archive.ubuntu.com'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial-backports/InRelease Could not resolve 'us.archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease Could not resolve 'security.ubuntu.com'
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease Could not resolve 'us.archive.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
e
$ apt-get update
Reading package lists... Done
W: chmod 0700 of directory /var/lib/apt/lists/partial failed - SetupAPTPartialDirectory (1: Operation not permitted)
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)