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I have uninstalled modem+manager+gui through terminal still I can see error of modem-manager-gui while doing apt-get update

Ign:1 http://ppa.launchpad.net/linuxonly/modem+manager+gui/ubuntu xenial InRelease

How can i remove it and can run sudo apt-get update without any error?

d a i s y
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1 Answers1

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During installation, you might have added ppa by running this command:

sudo add-apt-repository ppa:linuxonly/modem+manager+gui

You might have uninstall package modem-manager-gui but ppa is not removed. So you need remove ppa linuxonly/modem+manager+gui

There will be a line in your /etc/apt/sources.list.d folder like linuxonly-ubuntu-modem_manager_gui-xenial.list.

You need to remove that line and you can do this manually by running these commands:

cd /etc/apt/sources.list.d
sudo rm linuxonly-ubuntu-modem_manager_gui-xenial.list

OR

sudo add-apt-repository --remove ppa:linuxonly/modem+manager+gui

After then you can do sudo apt-get update without any error.

For more information: How can PPAs be removed?

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d a i s y
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  • You can also simply run sudo add-apt-repository --remove ppa:linuxonly/modem+manager+gui if it has been added using that same tool. – Byte Commander Jan 11 '17 at 08:19
  • @ByteCommander One thing i noticed if i run this command, why .list file is not removed from /etc/apt/sources.list.d automatically ? – d a i s y Jan 11 '17 at 08:25
  • The file is not removed, but empty afterwards IIRC, so it has no effect. Probably this is to make sure it doesn't remove anything else that could be in the file, like other repositories or comments... – Byte Commander Jan 11 '17 at 08:37