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Sysadmin Grub Help?

Discussion in 'System Administration' started by Jimmy, Sep 15, 2017.

  1. Jimmy

    Jimmy Well-Known Member

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    Remember, you can always boot via the Grub with the commands above.
     
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  2. rdan

    rdan Well-Known Member

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    It works Great Now Sir!
    MANY MANY Thanks!
     
  3. Jimmy

    Jimmy Well-Known Member

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    No problem. Glad to hear it works. :)
     
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  4. eva2000

    eva2000 Administrator Staff Member

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    Excellent work @Jimmy (y):cool:

    Btw was what server specs you and jimmy have at OVH?
     
  5. Jimmy

    Jimmy Well-Known Member

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    I have the SP-128 w/ NVMe
     
  6. eva2000

    eva2000 Administrator Staff Member

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    so sounds like for NVMe based servers, after a kernel update you need to rebuild grub before rebooting
    Code (Text):
    grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
    reboot
    
     
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  7. rdan

    rdan Well-Known Member

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    SP-64-SGP Server - E3-1245v5 - 64GB
    With NVME also.
     
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  8. Jimmy

    Jimmy Well-Known Member

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    I've updated kernels before on this machine, never had to mess with the grub.cfg. Probably something to do with 7.4 IMO.

    I didn't get the time, but someone should submit a bug report or post a link to this thread on the Centos forum. My guess is when they tested for centos 7.4, they didn't use NVMe drives or no testers used NVMe.
     
  9. rdan

    rdan Well-Known Member

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    Just tested this on my own server now, with new kernel update and yes work as expected :).

    There's no harm on running this in all server before rebooting right?
    Just to avoid issues.
     
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  10. eva2000

    eva2000 Administrator Staff Member

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    if it works.. :)
     
  11. pamamolf

    pamamolf Premium Member Premium Member

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    Recently (1-2 days ago) there was out an update related to grub2 for Centos 7 but don't know if there was a fix related to your issue or not....
     
  12. Sunka

    Sunka Well-Known Member

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    Confirm
     
  13. BamaStangGuy

    BamaStangGuy Active Member

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    This thread was very helpful. Ran into this issue as well.
     
  14. rdan

    rdan Well-Known Member

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    OVH & NVMe + CentOS 7.4?
     
  15. pamamolf

    pamamolf Premium Member Premium Member

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    @RoldanLT
    Does that issue exist on latest kernel with Nvme ?
     
  16. rdan

    rdan Well-Known Member

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    On OVH I think Yes.
     
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  17. dcg

    dcg Member

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    I just had the same issue with the upgrade. OVH Nvme

    Thanks @Jimmy for the fix. Worked fine
     
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  18. pamamolf

    pamamolf Premium Member Premium Member

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    Someone must fix it after so long time :)

    Did you notify them about the issue and let them know how you fix it so they can find out what is wrong and apply a proper fix?
     
  19. eva2000

    eva2000 Administrator Staff Member

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    Don't think it's a bug just another less documented issue with NVMe and efi bioses ? Will check it out if kernel updates comes on my OVH MC-64-OC 7700K with 2x450GB NVMe raid 1
     
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  20. pamamolf

    pamamolf Premium Member Premium Member

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    I just contact OVH and ask about that issue as a server that i was need to get has only this option for Nvme ssd's and not plain ssd's and they verify that the issue exists for latest Centos 7 :(

    That's really sad to not have a real solution for this one :(

    Now i have to remember to run those two commands before reboots and be lucky to boo again :(
     
    Last edited: Dec 10, 2017
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