GNU/Linux Restoring Ubuntu Repositories Guide
Hi! This tutorial will guide you step-by-step on How to Restore Default Repositories in Ubuntu GNU/Linux Command Line.
And this Ubuntu Repositories Restoring Guide is required in case that by mistake the Repo File has been Overwritten or Deleted.
1. Terminal Getting-Started
How to QuickStart with Command Line on Ubuntu GNU/Linux:
2. Setting up Apt Repo
Now to Restore Ubuntu Default Apt Repository
(For the missing Ubuntu Releases amend the Definition consequently…)
Edit the Default Ubuntu Repository:sudo nano /etc/apt/sources.list
Copy & Paste the below Repo Code Setup.
Ctrl+Shift+v to Paste.
Finally, Ctrl+x to Save & Exit from nano Editor.
For Ubuntu 22.10:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ kinetic main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ kinetic-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ kinetic universe # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic universe deb http://us.archive.ubuntu.com/ubuntu/ kinetic-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ kinetic multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic multiverse deb http://us.archive.ubuntu.com/ubuntu/ kinetic-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ kinetic-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ kinetic-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu kinetic partner # deb-src http://archive.canonical.com/ubuntu kinetic partner deb http://security.ubuntu.com/ubuntu kinetic-security main restricted # deb-src http://security.ubuntu.com/ubuntu kinetic-security main restricted deb http://security.ubuntu.com/ubuntu kinetic-security universe # deb-src http://security.ubuntu.com/ubuntu kinetic-security universe deb http://security.ubuntu.com/ubuntu kinetic-security multiverse # deb-src http://security.ubuntu.com/ubuntu kinetic-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
And so for Ubuntu 22.04:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ jammy main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ jammy-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ jammy universe # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy universe deb http://us.archive.ubuntu.com/ubuntu/ jammy-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ jammy multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy multiverse deb http://us.archive.ubuntu.com/ubuntu/ jammy-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ jammy-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ jammy-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu jammy partner # deb-src http://archive.canonical.com/ubuntu jammy partner deb http://security.ubuntu.com/ubuntu jammy-security main restricted # deb-src http://security.ubuntu.com/ubuntu jammy-security main restricted deb http://security.ubuntu.com/ubuntu jammy-security universe # deb-src http://security.ubuntu.com/ubuntu jammy-security universe deb http://security.ubuntu.com/ubuntu jammy-security multiverse # deb-src http://security.ubuntu.com/ubuntu jammy-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
Similarly for Ubuntu 21.10:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ impish main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ impish main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ impish-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ impish-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ impish universe # deb-src http://us.archive.ubuntu.com/ubuntu/ impish universe deb http://us.archive.ubuntu.com/ubuntu/ impish-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ impish-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ impish multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ impish multiverse deb http://us.archive.ubuntu.com/ubuntu/ impish-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ impish-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ impish-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ impish-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu impish partner # deb-src http://archive.canonical.com/ubuntu impish partner deb http://security.ubuntu.com/ubuntu impish-security main restricted # deb-src http://security.ubuntu.com/ubuntu impish-security main restricted deb http://security.ubuntu.com/ubuntu impish-security universe # deb-src http://security.ubuntu.com/ubuntu impish-security universe deb http://security.ubuntu.com/ubuntu impish-security multiverse # deb-src http://security.ubuntu.com/ubuntu impish-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
Again for Ubuntu 21.04:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ hirsute main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ hirsute-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ hirsute universe # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute universe deb http://us.archive.ubuntu.com/ubuntu/ hirsute-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ hirsute multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute multiverse deb http://us.archive.ubuntu.com/ubuntu/ hirsute-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ hirsute-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ hirsute-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu hirsute partner # deb-src http://archive.canonical.com/ubuntu hirsute partner deb http://security.ubuntu.com/ubuntu hirsute-security main restricted # deb-src http://security.ubuntu.com/ubuntu hirsute-security main restricted deb http://security.ubuntu.com/ubuntu hirsute-security universe # deb-src http://security.ubuntu.com/ubuntu hirsute-security universe deb http://security.ubuntu.com/ubuntu hirsute-security multiverse # deb-src http://security.ubuntu.com/ubuntu hirsute-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
So for Ubuntu 20.04 LTS:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ focal main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ focal main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ focal-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ focal-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ focal universe # deb-src http://us.archive.ubuntu.com/ubuntu/ focal universe deb http://us.archive.ubuntu.com/ubuntu/ focal-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ focal-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ focal multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ focal multiverse deb http://us.archive.ubuntu.com/ubuntu/ focal-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ focal-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu focal partner # deb-src http://archive.canonical.com/ubuntu focal partner deb http://security.ubuntu.com/ubuntu focal-security main restricted # deb-src http://security.ubuntu.com/ubuntu focal-security main restricted deb http://security.ubuntu.com/ubuntu focal-security universe # deb-src http://security.ubuntu.com/ubuntu focal-security universe deb http://security.ubuntu.com/ubuntu focal-security multiverse # deb-src http://security.ubuntu.com/ubuntu focal-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
Last, for Ubuntu 18.04 LTS:# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ bionic universe # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic universe deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://us.archive.ubuntu.com/ubuntu/ bionic multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic multiverse deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse # deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu bionic partner # deb-src http://archive.canonical.com/ubuntu bionic partner deb http://security.ubuntu.com/ubuntu bionic-security main restricted # deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted deb http://security.ubuntu.com/ubuntu bionic-security universe # deb-src http://security.ubuntu.com/ubuntu bionic-security universe deb http://security.ubuntu.com/ubuntu bionic-security multiverse # deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse # This system was installed using small removable media # (e.g. netinst, live or single CD). The matching "deb cdrom" # entries were disabled at the end of the installation process.
3. Updating Apt Sources
Next to Update Ubuntu Repositories
Just run:sudo apt update