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Sysadmin A yum update causes kernel not to load after reboot

Discussion in 'System Administration' started by andybond, Mar 23, 2018.

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  1. Mar 23, 2018 #1
    andybond

    andybond Member

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    Please fill in any relevant information that applies to you:
    • CentOS Version: CentOS 7 64bit
    • Centmin Mod Version Installed: i123.09beta01
    • Nginx Version Installed: 1.1.3
    • PHP Version Installed: 7.2.1
    • MariaDB MySQL Version Installed: 10.2
    • When was last time updated Centmin Mod code base ? : Today ( 22 MAR 18 )
    • Persistent Config: N/A
    Periodically I run centmin mode code base update and noted that a particular update was made available once I had updated ; remi-release-7.4-2.el7.remi.noarch

    I followed the yum instructions as specified on the very helpful screen and proceeded to reboot the server.

    It never came back up .

    No errors were / are flagged , just a flashing cursor and nothing loaded. I had to revert to second to last updated kernel.

    Any ideas ? Be gentle , centminmod / linux n00b here !
     
  2. Mar 23, 2018 #2
    eva2000

    eva2000 Administrator Staff Member

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    Nginx 1.31.x
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    server specs/hardware and web host ?

    contacted web host's tech support ?
     
  3. Mar 23, 2018 #3
    andybond

    andybond Member

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    Its a VM.

    Its me managing the VM , I have full access. Webhost is unsure on why its failing to update. Last kernel is working fine.
     
  4. Mar 23, 2018 #4
    eva2000

    eva2000 Administrator Staff Member

    58,895
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    Ratings:
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    Local Time:
    8:43 PM
    Nginx 1.31.x
    MariaDB 10.x/11.4+/12.3+
    Without any specific info, your web host would be the folks who best know your server configuration and how it's setup to diagnose this.
     
  5. Jun 18, 2018 #5
    Peter Nehem

    Peter Nehem It hates everything I try to type here

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    @andybond I had trouble with kernel-ml-4.16.14? Damn I tried to go back and look but I guess I didn't make a note of which one. It was so bad my local machines were crawling and the two remote servers I couldn't connect. I downgraded the local computers and the 2 servers and didn't upgrade until 4.17.0 and then slowly.
     
  6. Jun 19, 2018 #6
    andybond

    andybond Member

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    Worth knowing , thanks.

    I ma still looking into reasons it works / doesnt. I think it might be a redhat VM limitation.

    Will solve it and have a look at what you said @Peter Nehem. Thanks for the advice.
     
  7. Jul 6, 2018 #7
    andybond

    andybond Member

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    Local Time:
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    10.4
    This "fault" was stemming from Xenserver 6.5 incompatibility.

    Host upgraded to a much later one and issues have gone and the kernel will update ( in fact , just done one ! ) without any issue
     
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