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WHM v66.0.14 - You must reboot the server to apply kernel updates

Discussion in 'General Discussion' started by CBG, Aug 23, 2017.

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  1. CBG

    CBG Member

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    Hi,

    Just did a force update to v66.0.14 and in WHM it saying:
    You must reboot the server to apply kernel updates

    I am running KernelCare that fully up to date and yum update doesn;t find anything.

    I have also done a graceful reboot twice.

    [root@katie ~]# uname -r
    3.10.0-514.26.2.el7.x86_64
    [root@katie ~]# yum install kernel
    Loaded plugins: fastestmirror, universal-hooks
    Loading mirror speeds from cached hostfile
    * EA4: 85.13.201.2
    * cpanel-addons-production-feed: 85.13.201.2
    * base: mirrors.linode.com
    * extras: mirrors.linode.com
    * updates: mirrors.linode.com
    Package kernel-3.10.0-514.26.2.el7.x86_64 already installed and latest version
    Nothing to do
    [root@katie ~]#
     
  2. CBG

    CBG Member

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    Update: just click on v66.0.14 which takes you to: Upgrade to Latest Version
    I then clicked on Click to Upgrade.

    After it ran and I click on the WHM image, it has now gone
     
  3. lacivert

    lacivert Member

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    Hi, I just upgraded to WHM v66.0.14 and I see a message that says "You must reboot the server to update kernel." and I did it two times!! I'm still seeing same message. Do I still have to reboot? I thought it stuck! What can we do?

    Thanks.
     
  4. dalem

    dalem Well-Known Member
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    did you run
    # yum update kernel
    upcp does not upgrade the kernel
     
  5. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Internal case CPANEL-15405 is open to address an issue where the use of non-stock kernels can result in the "You must reboot the server to update kernel" banner in WHM in cases where the active kernel is already installed and utilized. The resolution will include changes to ensure this feature isn't utilized on systems running custom kernels. I'll monitor this case and update this thread with more information as it becomes available.

    Thank you.
     
  6. jdstallings

    jdstallings Well-Known Member

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    This is also occurring for systems running CLOUDLINUX 7.3 standard v66.0.14
     
    #6 jdstallings, Aug 23, 2017
    Last edited by a moderator: Aug 24, 2017
  7. lacivert

    lacivert Member

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    yes I connected with ssh and

    yum clean all
    yum update

    there is nothing updated.

    still, I'm seeing the same message!?
     
  8. lacivert

    lacivert Member

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    SOLVED - cPanel 66 - Reboot Message in WHM

    I checked this threads and removed cache file.

    rm /run/system_needs_reboot.cache




    Its not showing anymore and also

    root@ocean:/run # kcarectl --uname
    -bash: kcarectl: command not found

    Do I need to track check this later?
     
  9. lacivert

    lacivert Member

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    yes that error message appeared again. I'm not happy. :(

    You must reboot the server to apply kernel updates.

     
  10. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Internal case CPANEL-15405 will prevent the reboot banner from appearing on any system that uses a custom kernel. I'll update this thread again once the resolution is published.

    Thank you.
     
  11. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    To update, the resolution is included with cPanel version 66.0.17 (available in the CURRENT build tier):

    Fixed case CPANEL-15405: Don't instruct users to reboot when they're running a custom kernel.

    This version should make it's way to the "RELEASE" build tier in the near future. You can read more about the product versions and release process at:

    Product Versions and the Release Process - cPanel Knowledge Base - cPanel Documentation

    Thank you.
     
  12. JonathanW

    JonathanW Member
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    Updated to 66.0.17 last night yet the message remains.

    shot-2017-08-31-08:11:03.png
     
  13. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    KernelCare updates the system to the latest kernel via its patching system, however it's possible the kernel RPM installed on the system is not updated to the latest version. Using the latest kernel RPM isn't required with KernelCare (it allows the system to run updated kernels without the latest RPM installed), however this can lead to cPanel displaying the "reboot warning" because the boot_version and running_version it detects are mismatched. A new case, CPANEL-15544, is now open to address this behavior. I'll monitor this case and update this thread with more information as it becomes available. In the meantime, you should be able to workaround this issue by installing the latest kernel RPM available from your OS (e.g. yum update kernel).

    Thank you.
     
  14. indoc0der

    indoc0der Member

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    Hello,

    the message appears again on WHM/cPanel v66.0.17. Already running yum update kernel and nothing happened.

    [root@server ~]# yum update kernel
    Loaded plugins: fastestmirror, rhnplugin, universal-hooks
    This system is receiving updates from CLN.
    Loading mirror speeds from cached hostfile
    * EA4: 104.219.172.10
    * cpanel-addons-production-feed: 104.219.172.10
    * cloudlinux-x86_64-server-7: cl.banahosting.com
    No packages marked for update
    [root@server ~]#

    Thank you.
     
  15. RobinF28

    RobinF28 Member

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    Hi Guys,
    Same issue for me, but I'm not using Kernel Care.
    Applied updates (yum update kernel) but warning message remains...?
    Cheers, Robin.
     

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  16. cPanelMichael

    cPanelMichael Forums Analyst
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    Does this server use KernelCare? If not, didyou reboot the server after applying the kernel update?

    Did you reboot the server after applying the kernel update?

    Thank you.
     
  17. Real Sauvageau

    Real Sauvageau Registered

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    Hi , I'm using Kernel Care with 66.0.17. I did what cPanelMichael as and reboot and no more kernel message.

    thanks.
     
    cPanelMichael likes this.
  18. kevinlevin

    kevinlevin Member

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    Same problem here:

    Running 66.0.17 + KernelCare on all servers - the message never disappears.
    Had to reboot a server 5 times and still.. the message is here. This is getting very annoying.
    @ cPanel Team - Please fix this ASAP.
     
    #18 kevinlevin, Sep 6, 2017
    Last edited by a moderator: Sep 6, 2017
  19. RobinF28

    RobinF28 Member

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    Hi Michael,

    Yes, I've rebooted the server more than 3 times, and the warning remains.

    Also, I've updated the kernel a few more times, both the "cp hardened kernel patch" and the basic yum, (yum update kernel) and rebooted again, and the warning remains.

    Also (sorry) I've updated to 66.18 - and updated kernel again, and it still show as "old" kernel...

    root@host.xxxxxxx.eu ~ $ uname -r
    2.6.32-642.13.1.el6.x86_64

    Any ideas, thank you.

    Regards, Robin.
     

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  20. RobinF28

    RobinF28 Member

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    Hi Michael,

    Yes, I've run "yum -y update kernel" 3 times & rebooted many times, but still the kernel refuses to upgrade, and I still get the warning message.

    I've also updated to 66.18, but still no improvement.

    Here is my current grub.conf info...
    Code:
    #########################################################
    # grub.conf generated by anaconda
    #
    # Note that you do not have to rerun grub after making changes to this file
    # NOTICE:  You do not have a /boot partition.  This means that
    #          all kernel and initrd paths are relative to /, eg.
    #          root (hd0,0)
    #          kernel /boot/vmlinuz-version ro root=/dev/vda1
    #          initrd /boot/initrd-[generic-]version.img
    #boot=/dev/vda
    default=0
    timeout=1
    splashimage=(hd0,0)/boot/grub/splash.xpm.gz
    hiddenmenu
    title CentOS (2.6.32-642.13.1.el6.x86_64)
            root (hd0,0)
            kernel /boot/vmlinuz-2.6.32-642.13.1.el6.x86_64 ro root=UUID=585e41ba-db5b-4e24-9b08-e4a27476f5fa rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM elevator=noop
            initrd /boot/initramfs-2.6.32-642.13.1.el6.x86_64.img
    title CentOS 6 (2.6.32-642.el6.x86_64)
            root (hd0,0)
            kernel /boot/vmlinuz-2.6.32-642.el6.x86_64 ro root=UUID=585e41ba-db5b-4e24-9b08-e4a27476f5fa rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM elevator=noop
            initrd /boot/initramfs-2.6.32-642.el6.x86_64.img
    
    ####################################################
    
    Any ideas? Thank you.

    Regards, Robin.
     

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    #20 RobinF28, Sep 6, 2017
    Last edited by a moderator: Sep 6, 2017
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