I'm subscribed to the Ubuntu Security Notes, so everytime that I receive an e-mail, a new update is avalable.  But in the last update, they wrote something in the end that I coudn't undertand much, so can anyone please tell me what does that means?  ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.   I tried to ask to my friend (who also uses Linux), but he don't know much about kernel.
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As you can see in the , there are update messages like "Bump ABI - Maverick ABI 28".  According to the , ABI is something like a bridge between the kernel space and the other modules (my interpretation).  Does such an update adds extra features and / or bugfixes? Should I upgrade my kernel to the next version?
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I am using Ubuntu 18.04 LTS (Bionic Beaver).  by this command   uname -r   I got the version of current kernel used in my Ubuntu.  4.19.0-041900-generic    I would like to know more detail, such as the type of the version of file system, VFS, device drivers, etc contained in the kernel.  Is there a command line tool for that? or I have to check this out on launchpad.net?
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Possible Duplicate:          On my laptop I have limited space but install all new updates, including kernel updates. However, Ubuntu doesn't seem to uninstall old kernels after installing a new kernel update. I guess this happens with reason: since the new kernel might fail, and it would be nice if GRUB provided a way to select the old kernel to boot with. But do I really need the whole history?, I guess not!:  rc linux-image-2.6.32-21-generic rc linux-image-2.6.32-24-generic rc linux-image-2.6.32-25-generic rc linux-image-2.6.35-22-generic rc linux-image-2.6.35-23-generic rc linux-image-2.6.35-24-generic rc linux-image-2.6.35-25-generic rc linux-image-2.6.35-27-generic rc linux-image-2.6.35-28-generic rc linux-image-2.6.35-30-generic rc linux-image-2.6.38-10-generic rc linux-image-2.6.38-11-generic ii linux-image-2.6.38-12-generic rc linux-image-2.6.38-8-generic ii linux-image-3.0.0-12-generic ii linux-image-3.0.0-13-generic ii linux-image-3.0.0-14-generic ii linux-image-3.0.0-15-generic ii linux-image-3.0.0-16-generic ii linux-image-generic   I thought apt-get autoremove should remove at least some of those images, but it doesn't. I will remove those now by hand, but isn't there a way to do this automatically and to keep, let's say, the last three images? Yes a shell script and a cron job! Any alternatives?
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I'm using Fedora and wonder if there is some way I can exclude kernel updates when I run yum update, until I specifically want to update the kernel.    The reason why I am concerned about this is because sometimes it requires a lot of extra research finding patches for some programs and extra time spent recompiling them to work on the new kernel.  I am thinking VMWare specifically as one example.   I wonder if there is some way for yum update to NOT update the kernel and only notify me that a new one is available when it goes through its routine so that I can decide to put it off until a more convenient time.  Or is this thinking likely to cause other issues?
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There's obviously a way to check to see when an update is a security update. I often get greeted by a motd that says "there are N security updates."  What I'd like to do is have my server email me a list of what packages need updating for security reasons.   To take it a step further, the email would link to the applicable security notification from Ubuntu.  Basically, each server is somewhat unique. I've received several emails on the security mailing list for packages I do not have install on any/all servers. So I'd like each individual server to tell me what it needs. That way I can apply updates in a timely manner, while avoiding restarting services like Apache that would cause users to have some downtime.  How could I do this?
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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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Why is it that Ubuntu only support a version for a limited time? Since I have been on this site I have seen many references to particular versions not being supported. What does it actually mean? After this time must a user just use the OS in the state it is in at the date that support ends? Does this mean no more package updates are available?   Or when this support date has elapsed, should the user then abandon the version and install a newer version instead? I am slightly confused with the difference between Ubuntu and Linux here (with Windows you use it until you buy the latest version) and would be grateful if someone could explain the Ubuntu 'lifecycle' (if that is a suitable word). Thanks in advance for your help.
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Ubuntu manages a list of . If I wish to stay updated on a specific major revision (3.12.x), how can I automate this? And how do I stop Software Updater from suggesting 3.11.x kernels when searching for new updates.
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Upon my observation, seems new packages will first appear in security.ubuntu.com, but if you upgrade later, they will appear in XX.archive.ubuntu.com (depends on your config),  Was that true ?
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I started using Ubuntu and like it so far. I got my first system at a point where problems would really hurt. Normally I do the apt-get upgrade stuff quite brain-off but this here made me feel a bit uncertain. The following packages were automatically installed and are no longer required:   linux-headers-4.15.0-29 linux-headers-4.15.0-29-generic linux-image-4.15.0-29-generic linux-modules-4.15.0-29-generic linux-modules-extra-4.15.0-29-generic Use 'sudo apt autoremove' to remove them.  I believe that newer version of this modules are installed and used already and that this old ones can be removed. But that is just me theory. When running autoremove it says that 335 MB will be freed. Is this safe or not? Update: I went for the autoremove with purge (even if I have enough space) I just seem to be greedily. It then popped up a purple screen asking me: A new version of /boot/grub/menu.lst is available, but the version installed currently has been locally modified. What would you like to do about menu.lst?  install the package maintainer's version keep the local version currently installed show the differences between the versions show a side-by-side difference between the versions show a 3-way difference between available versions do a 3-way merge between available versions (experimental) List item start a new shell to examine the situation  if I choose option 2: keep the local version, will it keep revert back to 4.15.0-29? what should I do. I'm sure this is just a small thing but I dont want this system to have short or longterm issues. Update: I compared both versions: one was the grub list and the other was some tmp list. one was version 29 and the other had version 34. I pressed: keep the local version currently installed twice and rebootet. $ uname -r 4.15.0-34-generic  hope that grub list is okay and its not the tmp list. Nevertheless I wanted to thank all you guys for the amount of very detailed answers. I felt a bit bad for all the time you spent answering me the initial question. But this seems to stand up for a decent community.
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Even the smallest update of one package or security patch makes Windows need to restart. Why? If an anti-virus application doesn't need it after patch update, why Windows need it after updating Security Essentials' virus-signature files? On the other hand, Linux mostly doesn't need it except when it upgrades its kernel. Note: I am talking especially about Windows 7. I don't know much about Windows 8, or the Server editions.
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I'm using Ubuntu 16.04 LTS on an Asus K53E laptop with 8 GB RAM. I check for updates to the software daily. If there are no updates, it asks me if I want to upgrade? What does upgrade exactly mean? Will my personal files still be there? Will it wipe EVERYTHING and give me a completely new installation of Ubuntu? Or will it allow me to keep my files and applications, and merely upgrade the OS?  When I upgrade my Mac or Windows machines, my personal files remain available after the upgrade. Does Ubuntu do the same, or are there completely different "rules"?
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In CentOS 7.3 when i check for available kernels, i receive the following:    [admin@CentOS73-x64 build]$ yum list --showduplicates kernel ... Installed Packages kernel.x86_64                                                                      3.10.0-514.el7                                                                           @anaconda kernel.x86_64                                                                      3.10.0-693.2.2.el7                                                                       @updates Available Packages kernel.x86_64                                                                      3.10.0-693.el7                                                                           base kernel.x86_64                                                                      3.10.0-693.1.1.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.2.1.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.2.2.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.5.2.el7                                                                       updates [admin@CentOS73-x64 build]$   When im on CentOS 7.2 doing the same command:    [ilan@CentOS7286-64 ~]$ yum list --showduplicates kernel .... Installed Packages kernel.x86_64                                                                      3.10.0-327.el7                                                                           @anaconda kernel.x86_64                                                                      3.10.0-514.16.1.el7                                                                      @updates Available Packages kernel.x86_64                                                                      3.10.0-693.el7                                                                           base kernel.x86_64                                                                      3.10.0-693.1.1.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.2.1.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.2.2.el7                                                                       updates kernel.x86_64                                                                      3.10.0-693.5.2.el7                                                                       updates [ilan@CentOS7286-64 ~]$   This means that 327 is not available for CentOS 7.3 ?    Let me clarify my goal:    This machine is going to be used as testing for different kernels, I need a machine that contains all kernels for CentOS 7. For the moment all CentOS 7 kernels are: 3.10.0-123, 3.10.0-54.0.1, 3.10.0-229, 3.10.0-327, 3.10.0-514, 3.10.0-514, 3.10.0-693  I wish to avoid having multiple machines 7.0, 7.1, 7.2... I'd rather install machine 7.0 that run 3.10.0-123 and upgrade it include all the kernels i mentioned above.
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I havent used my Ubuntu for quite a long time.  Today, when I booted Ubuntu (14.04 LTS), the software updater and Software &amp; Updates (from Settings) are not working.  The software updater's window will show up for around 1 sec, but it will close automatically. Software &amp; Updates is never shown, no matter how many times I click the icon. Note that neither of them show any error message.  Those 2 features were working perfectly the last time I used Ubuntu. I want to do some system upgrade and update.  For now, I use sudo apt-get update &amp;&amp; sudo apt-get upgrade. This command runs very fast, meaning (I think) my Ubuntu is not updated properly. The update from software updater always has a big size hence the download should be slower.  What should I do?   Can I just uninstall and reinstall both of them? If I can, how to do it?  Just to clarify, I don't want to upgrade my Ubuntu version (I want the LTS one), I just want to upgrade the software/packages I used.  Thanks for your time.
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Today I received an update notification for three updates but update manager doesn't say what updates are they.    Does anyone have a clue what this is about? How am I to check what is to be updated?
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Lately whenever I run software update I get the message    suggesting that my version of Ubuntu is EOL. But when I run lsb_release -a I get  No LSB modules are available. Distributor ID: Ubuntu Description:    Ubuntu 14.04.5 LTS Release:    14.04 Codename:   trusty   Which of these numbers should I pay attention to? 14.04 or 14.04.5? Because according to the  support for 14.04.5 runs out on April 2019.
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I have a laptop with Ubuntu 17.04 desktop installed. And I noticed that Ubuntu has just announced their new version (17.10). However, when I'm trying to open update-manager, it just tells me that I have the newest version.  Also, when I type the sudo do-release-upgrade command on the terminal, it tells me the same thing (No new release found.)  Is there any reasons for that, and what can I do? or should I just wait for that version, to get to the server?