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PPA Install fails on Ubuntu 18.04, #905

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LuigiWriter opened this issue May 16, 2022 · 4 comments
Open

PPA Install fails on Ubuntu 18.04, #905

LuigiWriter opened this issue May 16, 2022 · 4 comments

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@LuigiWriter
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From
https://github.com/teejee2008/timeshift
Used
sudo add-apt-repository -y ppa:teejee2008/timeshift
got
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://deb.opera.com/opera-stable stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DD3C368A8DE1B7A0
E: Failed to fetch http://ppa.launchpad.net/rolfbensch/sane-release/ubuntu/dists/bionic/InRelease 403 Forbidden [IP: 91.189.95.85 80]
E: The repository 'http://ppa.launchpad.net/rolfbensch/sane-release/ubuntu bionic InRelease' is no longer signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.

Thought instructions on other sites might have been the problem, so came to GitHub. This is the same message I got with instructions from other sites.

Will install from older deb. hope a deb for this version is available soon.
If more needed, let me know, will do my best to help.
Luigi

Platform Info
SysInfo 2022-05-15; 01

@nbehrnd
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nbehrnd commented May 16, 2022

Not necessarily a solution to the problem, but a suggestion to bypass the obstacle: Would an update of the Ubuntu LTS you access be an option? Because -- according to the package index -- with the release of focal (20.04 LTS), timeshift became available directly from Ubuntu's repositories. And some time in summer, the point release 22.04.1 for jammy will become available, too.

@LuigiWriter
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LuigiWriter commented May 17, 2022 via email

@nbehrnd
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nbehrnd commented May 18, 2022

Is it possible for you to replicate the following?

To start: In a rarely used, small spare partition, there is an elder xubuntu 18.04.4 LTS, (i.e., ubuntu with the xfce4 desktop), an information I retrieved by running lsb_release -a from the terminal. The kernel is older than the one in your report (Linux 4.15.0-96-generic (x86_64)).

From timeshift's release page, I fetch the .deb for the 64bit OS by Nov 16, 2020 which is timeshift_20.11.1_amd64.deb which eventually will be installed by

sudo dpkg -i timeshift_20.11.1_amd64.deb

without an additional ppa.

However, a first attempt to get this running failed because of two unresolved dependencies. Thus, in LTS 18.04

  1. install two btrfs related packages from the terminal by

    sudo apt-get install btrfs-prgs btrfs-tools
    
  2. then enter the folder with the timeshift .deb downloaded, and issue

    sudo dpkg -i timeshift_20.11.1_amd64.deb
    

    to install timeshift on top.

These two steps provided a new entry in the program pulldown menu and a functional timeshift to backup data of the OS. (For the real user data stored within /home, my preference goes to luckybackup and vorta/borg.)

@LuigiWriter
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LuigiWriter commented May 26, 2022 via email

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