I am new to Ubuntu Server configuration and I’m using 19.4 version but when I try to do sudo apt-get update I have these errors:
Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease
Ign:2 http://archive.ubuntu.com/ubuntu disco-updates InRelease
Ign:3 http://archive.ubuntu.com/ubuntu disco InRelease
Ign:4 http://archive.ubuntu.com/ubuntu disco-backports InRelease
Ign:5 http://archive.ubuntu.com/ubuntu disco-security InRelease
Err:6 http://archive.ubuntu.com/ubuntu disco-updates Release
404 Not Found (IP: 91.189.88.142 80)
Err:7 http://archive.ubuntu.com/ubuntu disco Release
404 Not Found (IP: 91.189.88.142 80)
Err:8 http://archive.ubuntu.com/ubuntu disco-backports Release
404 Not Found (IP: 91.189.88.142 80)
Err:9 http://archive.ubuntu.com/ubuntu disco-security Release
404 Not Found (IP: 91.189.88.142 80)
Reading package lists... Done
E: The repository 'http://archive.ubuntu.com/ubuntu disco-updates Release' no longer has 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.
E: The repository 'http://archive.ubuntu.com/ubuntu disco Release' no longer has 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.
E: The repository 'http://archive.ubuntu.com/ubuntu disco-backports 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.
E: The repository 'http://archive.ubuntu.com/ubuntu disco-security Release' no longer has 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.
I had to get ssh with sudo apt-get install ssh. I couldn’t do that neither due to same error so I did vim /etc/apt/sources.list and changed to
deb http://archive.ubuntu.com/ubuntu disco main restricted
to
deb http://archive.ubuntu.com/ubuntu focal main restricted
because my professor said so. With this change I could set up ssh and status is active but still I can’t get any update. I ping to 8.8.8.8 and it works also. Further I have to do
sudo apt-get install isc-dhcp-server
and inside I have to change INTERFACESv4="enp0s8". But I couldn’t do because of these errors as well.
I have these addresses in /etc/netplan
network:
version: 2
renderer: networkd
ethernets:
enp0s3:
dhcp4: yes
dhcp6: yes
enp0s8:
dhcp4: no
dhcp6: no
addresses: (10.1.1.1/24)
enp0s9:
dhcp4: no
dhcp6: no
addresses: (192.168.56.100/24)
I hope I’m clear!
Many thanks
