I just upgraded a workstation from 18.04 LTS to 20.04 LTS over the web.  I use Mozilla Firefox production download tar.bz2, not a .deb from an Ubuntu repository.  The upgrade automatically installed the Ubuntu version of Firefox.  I manually removed this Ubuntu-automatically installed version with apt purge and the like, although before doing so I did, as root, mv /usr/lib/firefox /usr/lib/firefox-distro so that the Ubuntu version can be accessed.  In the Mozilla production version, when I select within Mozilla Help -&gt; About Firefox, the &quot;check for updates&quot; box appears, but cannot be activated, and the usual check with &quot;Firefox up to date&quot; (after an automatic checking by Firefox and unless an update is needed) does NOT appear.  From   Note: If you use your Linux distribution's packaged version of Firefox, you will need to wait for an updated package to be released to its package repository. This article only applies if you installed Firefox manually (without using your distribution's package manager).  End excerpt. How to I get Firefox NOT to be under the update control of the &quot;distribution's package manager&quot;?
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Because of  I'd like to prevent apt-get upgrade and Update Manager from updating the "libgtk2.0-0" package.   How can this be achieved?
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I'm trying to locate where the Ubuntu Software Center is to choose as default for handling APT links in Firefox.  I can click on the links, and I get the pop-up, but Ubuntu Software Center is not there.  I tried to choose an application through Firefox's settings and through the pop-up, but I don't know the path.  As you can see by my screen shot for the pop-up I chose the wrong one as that doesn't work.  What is the correct path I need to select the correct file?  EDIT - I added a fourth screen shot.  I don't have it in that location.  This is what I have.  My view is in ABC order, and it's showing hidden files.
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I'm running an Ubuntu 18.04 server and was trying to disable every update and upgrade there is but am still not quite sure on what exactly to do. Ignoring the security aspect that comes with it, how do I disable automatic updates for Ubuntu 18.04, MySQL, Apache and PHP via command line?  As far as I know, MySQL Apache and PHP should not automatically update when I disable automatic updates / package list updating on Ubuntu, is that correct?  For Ubuntu, the only things I found were in /etc/apt/apt.conf.d/10periodic :  APT::Periodic::Update-Package-Lists "1"; APT::Periodic::Download-Upgradeable-Packages "0"; APT::Periodic::AutocleanInterval "0";   which I would set to 0.   APT::Periodic::Update-Package-Lists "1"; set to 0 basically makes it impossible for any package / software e.g. MySQL Apache and PHP to update, right?  And in /etc/apt/apt.conf.d/50unattended-upgrades :  Unattended-Upgrade::Allowed-Origins {           "${distro_id}:${distro_codename}";           "${distro_id}:${distro_codename}-security";           "${distro_id}ESM:${distro_codename}"; //        "${distro_id}:${distro_codename}-updates"; //        "${distro_id}:${distro_codename}-proposed"; //        "${distro_id}:${distro_codename}-backports"; };   In there, I would just comment out line 2-4.  Anything else I would need to do or are all automatic updates / upgrades disabled after this?
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Firefox fails to update due to corrupted download (deb)  Preparing to unpack .../firefox_32.0+build1-0ubuntu0.14.04.1_i386.deb ... Unpacking firefox (32.0+build1-0ubuntu0.14.04.1) over (31.0+build1-0ubuntu0.14.04.1) ... dpkg-deb (subprocess): decompressing archive member: lzma error:  compressed data is corrupt dpkg-deb: error: subprocess &lt;decompress&gt; returned error exit status 2 dpkg: error processing archive  /var/cache/apt/archives/firefox_32.0+build1-0ubuntu0.14.04.1_i386.deb (--unpack):  cannot copy extracted data for './usr/lib/firefox/libxul.so' to '/usr/lib/firefox/libxul.so.dpkg-new':   unexpected end of file or stream Please restart all running instances of firefox, or you will experience problems.
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If I install Ubuntu 18.10 (non LTS) now, then follow all the releases until next year where we will get the next LTS, will I (next year) be able to install the new LTS from my non LTS? I am not talking about downgrading, but upgrading to the next LTS from a non LTS system.
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I would like to ask a very basic question but I have never thought about it before. Well, when someone installs an application from terminal, he has to add the repository first, right? On the other side, when someone installs an application from the Ubuntu Software Center, is the repository then added automatically?  I am asking those questions to figure out this: When I run update and then upgrade, will this application be upgraded or not? Is the result same in two options?
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When I ssh into my  box, I get this message:  Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-32-generic x86_64)   * Documentation:  https://help.ubuntu.com/  New release '12.10' available. Run 'do-release-upgrade' to upgrade to it.  Last login: &lt;redacted&gt; $   But I don't intend to upgrade to 12.10, because Mythbuntu recommends using LTS releases only.  How do I suppress the "New release '12.10' available" message?  I don't want to be notified until the next LTS release is available.  I've already gone to Update Manager > Settings > Updates and selected "Notify me of a new Ubuntu version: For long-term support versions", but that didn't get rid of this message.
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How can I install the latest  FileZilla from its official ?  I can find FileZilla from my software centre and install it. But it is version 3.24.0. While the latest is 3.25.2.  Can I upgrade the version 3.24.0 that I have already installed to 3.25.2?  I always wonder how to install from its official site, but it is not a .deb. It looks like the source files of FileZilla that you need to compile or build. But how can I do it?  Any ideas?  This is from the site but it is just not very helpful to me:     Installing on GNU/Linux and other Unix(-like) systems      It is recommended that you use the package manager of your   distribution. If you're using GNU/Linux, you can also try using the   precompiled binaries. After extracting the files to any location   (location does not matter, FileZilla can detect its own installation   prefix), you can start the program using the filezilla executable in   the bin/ subdirectory. Please note that due to differences in   distributions, the provided binaries might not work on your system.   Alternatively you can also compile FileZilla from source.
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Ubuntu 11.10 is installed, and I have updated my system via Ubuntu Software Centre, and after the update 3 updates remain in the list. But I am unable to select them, the tickboxes cannot be checked and Ubuntu Software Centre gives no error when I try to check.  Also, below it says "There is no update to be installed" and even though there seems to be updates Install Updates button is unclickable.  What should I do in order to install these updates?
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I am looking at using  , but I am not sure how easy it is to update a distribution when a new version comes out.  Also, can I use drush to do it, or do I have to manually download and unpack the distribution?
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I checked the , , and  wiki pages but still cannot seem to find a complete answer to this.  When using an LTS release like 18.04, is there somewhere public that can be checked to determine what kernel versions are being tested and when they are anticipated to be released for it? I would like to use 4.19, for example, but would like to know how to check this for any anticipated kernel release.  I know I could potentially just install the 4.19 kernel myself but I would rather know when it (and future kernel releases) were in the release pipeline. Is there somewhere on Launchpad that I could check? Somewhere else? Where are the Ubuntu kernel package maintainers doing their work?
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Update Manager is constantly offering me updates (e.g. security fixes, updates from PPAs).  How can I tell my Ubuntu installation to automatically download and install updates whenever they become available?
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On a Lenovo laptop, I want to upgrade from Ubuntu 18.04 to Ubuntu 18.10 (budgie).  When I select upgrade on the update manager, the dialog box disappears and nothing happens. The upgrade doesn't start.  Note- I went through the same procedure this morning on my other laptop and Ubuntu successfully upgraded.   do-release-upgrade fails to upgrade and throws this error:  Please install all available updates for your release before upgrading.   What can I do to upgrade the system successfully?
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How to disallow Ubuntu to upgrade from like 11.10 to 12.04?  I know that its your wish if you want to upgrade, but I don't want the message in update manager that says a new release is available to get displayed.  All help will be appreciated
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I need to install libesd0-dev, but while it is available on earlier versions of Ubuntu from apt-get, it's not available for 18.04. Is there still a way for me to install it, or do I have to downgrade?
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In the  of Ubuntu, I see that both the 14.04.1 and the 14.04 versions are offered for download. Do I need them both? That is, is 14.04 a prerequisite for installing 14.04.1? Or can I just download the last version ubuntu-14.04.1-desktop-amd64.iso?
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How do I select which server Ubuntu will get it's software and updates from? I know how to find the  on the web, but not how to use them.