Jul 27, 2015 · It is always a good idea to back up configuration files like /etc/apt/sources.list before you begin editing. You can then revert your changes if needed. If you decide to add other repositories to sources.list, make sure that the repository is meant to work (and known to work) with Ubuntu.

Jul 27, 2015 · It is always a good idea to back up configuration files like /etc/apt/sources.list before you begin editing. You can then revert your changes if needed. If you decide to add other repositories to sources.list, make sure that the repository is meant to work (and known to work) with Ubuntu. Using Terminal text editor program 'nano' we can edit the file '/etc/apt/sources.list' . Open terminal and type: ' sudo nano /etc/apt/sources.list ' After making necessary changes, use the keyboard combination 'ctrl + o' and after that press 'Enter' to save the file to its current location. Use the keyboard combination 'ctrl + x' to exit nano. Aug 28, 2019 · Berikut adalah default sources.list untuk Ubuntu 14.04 LTS Ganti di /etc/apt/sources.list Jangan lupa backup dulu ya. #deb cdrom:[Ubuntu 14.04.3 LTS… In Ubuntu, APT will know what repository to access and what packages to download primarily based on your sources.list settings. So sources.list is very essential for your APT system. This article explains the terms (4 "channels" and 4 "rooms"), gives many practical examples, how to edit, and adds summary and references at the end.

$ cat /etc/apt/sources.list# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted

sudo sed -i.old '68d' /etc/apt/sources.list This command will delete the line using sed in place. It makes a backup called /etc/apt/sources.list.old. If you don't want the backup then you can use plain -i instead of -i.old. Alternatively, you can manually delete the line with Gedit. Press Alt + F2 and type gksu gedit /etc/apt/sources.list.

Configuration of the Advanced Packaging Tool (APT) system repositories is stored in the /etc/apt/sources.list file and the /etc/apt/sources.list.d directory. An example of this file is referenced here, along with information on adding or removing repository references from the file.

/etc/apt/sources.list" E212: Can't open file for writing vi ubuntu-11.04. Browse other questions tagged vi ubuntu-11.04 or ask your own question. Apr 06, 2020 · Method 1: Edit /etc/apt/sources.list with nano. We upgrade this Ubuntu distro to Focal by editing /etc/apt/sources.list with nano: $ sudo nano /etc/apt/sources.list We want to replace all instances of ‘bionic’ with ‘focal’ so press Control [Ctrl] and backslash \ [] At “Search (to replace)” type: bionic. At “Replace with” type: focal