BTW found this
Here is my sources list ,
deb cdrom:[Ubuntu 18.04.6 LTS Bionic Beaver - Release amd64 (20210915)]/ bionic main restricted
See UpgradeNotes - Community Help Wiki for how to upgrade to
newer versions of the distribution.
deb Index of /ubuntu bionic main restricted
deb-src Index of /ubuntu bionic main restricted
Major bug fix updates produced after the final release of the
distribution.
deb Index of /ubuntu bionic-updates main restricted
deb-src Index of /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 Index of /ubuntu bionic universe
deb-src Index of /ubuntu bionic universe
deb Index of /ubuntu bionic-updates universe
deb-src Index of /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 Index of /ubuntu bionic multiverse
deb-src Index of /ubuntu bionic multiverse
deb Index of /ubuntu bionic-updates multiverse
deb-src Index of /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 Index of /ubuntu bionic-backports main restricted universe multiverse
deb-src Index of /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 Index of /ubuntu bionic partner
deb-src Index of /ubuntu bionic partner
deb Index of /ubuntu bionic-security main restricted
deb-src Index of /ubuntu bionic-security main restricted
deb Index of /ubuntu bionic-security universe
deb-src Index of /ubuntu bionic-security universe
deb Index of /ubuntu bionic-security multiverse
deb-src Index of /ubuntu bionic-security multiverse
deb [arch=amd64] Index of linux/ubuntu/ bionic stable
deb-src [arch=amd64] Index of linux/ubuntu/ bionic stable
deb [arch=amd64] Index of /repos/vscode/ stable main