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i write sudo apt-get update and the ubuntu show me

E: The repository 'cdrom://Lubuntu 20.04.4 LTS _Focal Fossa_ - Release amd64 (20220223) focal 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.

error. how to fix it?!

guiverc
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none
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  • You should be able to unselect it from Settings -> Software & Updates -> Other Software – Terrance Apr 11 '22 at 22:57
  • The most appropriate Lubuntu manual page is https://manual.lubuntu.me/lts/4/4.3/software_sources.html in case it helps. – guiverc Apr 11 '22 at 23:04

1 Answers1

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You have a CD-ROM repo when the CD-ROM does not exist aka removed. So you can just remove the repo here's how

discover: Go to the cdrom:// entry and un check it

Or with gnome just go to the software center and go to other software and uncheck the cdrom:// entry

lnee
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