In this tutorial, we will show you the tutorial to delete a repository and GPG key in Ubuntu and it’s derivatives.

How To Delete A Repository And GPG Key In Ubuntu In 2024

What Is Repository In Linux?

Repository or Repos are the place where the all software packages are stored.  Linux users can easily download these packages using  Apt package manager or via Software center.  There are basically 4 repos in Ubuntu and they are Main, Universe, Restricted and Multiverse.

How To Delete Repository In Ubuntu?

Repos added  using add-apt-repositoryare stored in /etc/apt/sources.list file. So, If you want to remove or delete Repository in Ubuntu then open the /etc/apt/sources.list file and look for the repository entry that you want to delete. To delete the repository, simply remove the entry from the file and you need to save and close the file.

sudo nano /etc/apt/sources.list

If you have added PPA repositories, search into the /etc/apt/sources.list.d/ directory and delete the repos that you want to remove.
Finally, run the following command to update the software sources list:

sudo apt update

How To Delete Repository keys in Ubuntu?

Run the following command to list down the added keys. The following command will list down the added repository keys from your Ubuntu.

sudo apt-key list

You can simply remove the keys using the following command by mentioning the long (40 characters) hex value or the 8 characters.

sudo apt-key del "3820 03C2 C8B7 B4AB 813E 915B 14E4 9429 73C6 2A1B"

Or,

sudo apt-key del 90A52C1D

Run the following command to update the repository lists:

sudo apt update

The post How To Delete A Repository And GPG Key In Ubuntu In 2024 first appeared on AtoZ Linux.

How To Install Ubuntu Along With Windows 11

As we will be using Ubuntu 22.04 LTS in this tutorial, you need to download Ubuntu 22.04 LTS ISO from the official website of Ubuntu. You can get it from the link below.

Download Ubuntu 22.04 LTS ISO

Create a Live USB With Ubuntu 22.04 LTS

You need to create a bootable USB drive with Ubuntu.

Prepare the Windows Operating System For Dual-Boot

You need to allocated the enough space so that you can install Ubuntu in it. It will be good enough if you can delete one of your available partitions and create enough available space for Ubuntu. If you can manage 100 GB of unallocated space for the Ubuntu installation then you can have the smooth installation of the Ubuntu along with Windows.

• Note: Ubuntu 22.04 requires 25GB of disk space for the installation.

Boot from USB Drive

Boot your system from the Ubuntu bootable pendrive.  If you are booting in the UEFI system then select Ubuntu from the GRUB menu and then press Enter otherwise  you  need to access your BIOS setting to change the boot sequence on BIOS/UEFI to boot a system from DVD/USB.

• Follow the onscreen information as  you will see a welcome screen where you will get the option of installing Ubuntu or trying it.
• Click on the Install Ubuntu button
• In next windows select the keyboard setting. Choose the Keyboard and then click Continue to proceed further.
• In next screen, choose the type of installation. You can go either with Minimal Installation or Normal installation. You can have also the option of installing system updates and third-party software during OS installation.

Disk Partitioning

If you are in UEFI System you will see the following  options:

• Install Ubuntu alongside Windows Boot Manager
• Erase disk and install Ubuntu
• Something else

If you are in the Legacy system, then you will see something like this:

• Install Ubuntu Alongside Windows 11
• Erase disk and install Ubuntu
• Something else

In either case, You need to go with the something else option so that  you can create partitions manually with the size you want. We will create the following partition in the unallocated space or partition that you have allocated for the Ubuntu.

• /boot – 10GB (Optional for legacy bios system )
• /home – 30GB
• swap – 8GB
• / – Remaining space in your unallocated partition.

When finished, hit the Install Now button in order to apply changes to the disk and start the installation process of Ubuntu 22.04 LTS alongside Windows 11.

On the next screen select your physical location from the map and then click Continue to move ahead.

It might take up to 30 minutes to complete. Once Ubuntu 22.04 LTS installation is complete.

• Click Restart Now to reboot the machine.
• After rebooting your system, Select Ubuntu from  the Grub menu. In Grub Menu,  you will see both Ubuntu 22.04 LTS and Microsoft Windows 11.

The post How To Install Ubuntu 22.04 LTS Along With Windows 11 first appeared on AtoZ Linux.