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Thread: Update Manager wants to update to an OLDER Kernel

  1. #1
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    Update Manager wants to update to an OLDER Kernel

    Recently installed Ubuntu 10.04 on a SSD.

    I manually installed kernel 2.6.33 (to enable TRIM). My update manager keeps notifying me that an older kernel (2.6.32-27) is available.

    Why does it not realize I already have a newer kernel installed? Is there a workaround to resolve this? Is there a better way I could have installed 2.6.33 (or used a different kernel altogether)?

  2. #2
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    Re: Update Manager wants to update to an OLDER Kernel

    I think you simply have to ignore it and set updates to notify only . The update manager downloads the next kernel for the release you are using in order , it does not detect your kernel.
    “Start where you are. Use what you have. Do what you can".

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  3. #3
    Join Date
    Nov 2010
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    Ubuntu 10.10 Maverick Meerkat

    Re: Update Manager wants to update to an OLDER Kernel

    Quote Originally Posted by Frogs Hair View Post
    I think you simply have to ignore it and set updates to notify only . The update manager downloads the next kernel for the release you are using in order , it does not detect your kernel.
    Wouldn't that one hell of an oversight?

    I'm pretty sure the update manager is supposed to be able to tell which kernel you are on if it was installed properly and it is listed as a valid kernel in the repos because some packages are kernel specific and APT tells you when you can't install packages due to kernel dependencies.

    I had issues using certain packages on another APT using distro because that distro did not have a kernel made for my architecture and build failed sporadically on the machine.

  4. #4
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    Jun 2009
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    Re: Update Manager wants to update to an OLDER Kernel

    Maybe I can ask the question differently.

    Can someone explain how this page works?
    http://kernel.ubuntu.com/~kernel-ppa/mainline/


    Why are revisions still being made to the older 2.6.32.xx-lucid kernals when the 2.6.33+ lucid kernels are there?

  5. #5
    Join Date
    Nov 2010
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    Ubuntu 10.10 Maverick Meerkat

    Re: Update Manager wants to update to an OLDER Kernel

    Beta maybe? Those are probably the latest unstables and packageman likes using stables only unless otherwise noted/configured

  6. #6
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    Ubuntu 16.04 Xenial Xerus

    Re: Update Manager wants to update to an OLDER Kernel

    Quote Originally Posted by TechWiz2100 View Post
    Wouldn't that one hell of an oversight?

    I'm pretty sure the update manager is supposed to be able to tell which kernel you are on if it was installed properly and it is listed as a valid kernel in the repos because some packages are kernel specific and APT tells you when you can't install packages due to kernel dependencies.

    I had issues using certain packages on another APT using distro because that distro did not have a kernel made for my architecture and build failed sporadically on the machine.
    The update manager can only tell package versions for things that are actually installed through the package management.

    Also, kernel updates are actually not a case of updating a kernel package, so it doesn't check what lernels you have installed and what you might be running. The mechanism is actually a lot simpler:

    You have a metapackage called "linux-generic" installed. This is an empty package which has the latest official kernel version and related packages marked as it's dependencies. It's also the only package that is actually updated in kernel updates, the update installs latest version of this metapackage, causing the latest kernel packages to be added to your system as dependencies. (it must be done this way, otherwise it wouldn't be possible to keep the old kernel version installed, as updating a package always replaces the old one.)

    So, if you want to use a custom kernel instead of the official one, and don't wish to install the official kernel updates any more, all you need to do is to remove the kernel-related metapackages.
    Last edited by mcduck; January 6th, 2011 at 12:00 PM.

  7. #7
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    Re: Update Manager wants to update to an OLDER Kernel

    “Start where you are. Use what you have. Do what you can".

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