I had uninstalled open jdk and trying to install oracle jdk8 but getting following error

oracle@ubuntu:~/Downloads$ sudo apt update Hit:1 bionic InRelease Hit:2 bionic-updates InRelease Hit:3 stable InRelease Hit:4 eoan InRelease Ign:5 eoan InRelease Err:6 eoan Release 404 Not Found [IP: 91.189.95.83 80] Reading package lists... Done E: The repository ' eoan Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

Please can you help me out from this error.

4 Answers

sudo add-apt-repository --remove ppa:webupd8team/ppa sudo apt update

Per

1

In software & updates app--> other softwares. Unchecked eoan

I fixed my problem by this:

1.First, restore the default focal repositories using these commands:

mkdir ~/solution cd ~/solution/

cat << EOF > ~/solution/sources.list deb focal main restricted universe multiverse deb-src focal main restricted universe multiverse

deb focal-updates main restricted universe multiverse deb-src focal-updates main restricted universe multiverse

deb focal-security main restricted universe multiverse deb-src focal-security main restricted universe multiverse

deb focal-backports main restricted universe multiverse deb-src focal-backports main restricted universe multiverse

deb focal partner deb-src focal partner EOF

sudo rm /etc/apt/sources.list sudo cp ~/solution/sources.list /etc/apt/sources.list

2.Remove all the PPAs in your system:

sudo mv /etc/apt/sources.list.d/* ~/solution

3.Update the repositories:

sudo apt update

You can see this solution on this link:

1

I have replaced source.list with below text, resolved my issue.

# See for how to upgrade to # newer versions of the distribution. deb precise main deb-src precise main ## Major bug fix updates produced after the final release of the ## distribution. deb precise-updates main deb-src precise-updates main ## 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 precise universe deb-src precise universe deb precise-updates universe deb-src precise-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 precise multiverse # deb-src precise multiverse # deb precise-updates multiverse # deb-src precise-updates multiverse ## Uncomment the following two lines to add software from the 'backports' ## repository. ## 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 precise-backports main restricted universe multiverse # deb-src precise-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 precise partner # deb-src precise partner deb precise-security main deb-src precise-security main deb precise-security universe deb-src precise-security universe # deb precise-security multiverse # deb-src precise-security multiverse

after that run this

sudo apt update

in your terminal