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I can't edit /etc/resolv.conf, error: permission denied I upgraded from 16.04 to 16.10 and keyboard & mouse stopped working, following ubuntu KB asks to mount chroot, chroot mounted but dns not working, and can't edit resolv.conf Please help how to solve network connectivity when booted from a live cd and mounted to chroot.

Uttam Baroi
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  • I answered the question you asked. However it isn't clear what this has to do with a LiveCD boot, chroot, network connectivity and so on. If you are having network and/or kybd/mouse issues on a machine where Ubuntu is installed, you should ask questions about those instead. The protocol here is one question for each issue. – jones0610 Jun 16 '17 at 03:34
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    You DON'T edit /etc/resolv.conf... it says so right in the file... and, resolv.conf would have NOTHING to do with your keyboard/mouse problem. – heynnema Jun 16 '17 at 15:35
  • Does this answer your question? [Why there are resolvconf.service and systemd-resolved.service services present in ubuntu at the same time](https://askubuntu.com/questions/985336/why-there-are-resolvconf-service-and-systemd-resolved-service-services-present-i) – karel Mar 03 '22 at 08:35

2 Answers2

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/etc/resolv.conf lists the name servers to query when doing a DNS lookup. It requires sudo privileges to edit.

sudo nano /etc/resolv.conf

nano is a simple text editor.

The resolver has nothing to do with keyboard and mouse function.

Community
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jones0610
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  • this is the situation https://askubuntu.com/questions/899599/keyboard-and-mouse-input-issuess-after-upgrading-to-16-10 – Uttam Baroi Jun 16 '17 at 04:27
  • @Uttam Baroi Right. As I said, I answered the title question that you asked. For additional problems, additional questions for each issue should be created. – jones0610 Jun 16 '17 at 04:36
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No edit because it is a symbolic link. Default resolv.conf:

  • /run/systemd/resolve/stub.resolv.conf
  • /run/systemd/resolve/resolv.conf

Delete symbolic link, and create a new one.
sudo nano /etc/resolv.conf

Sample content: nano /etc/resolv.conf

nameserver ::1
nemaserver 127.0.0.1
options edns0
István Ifj Dankaházi
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