# [OmniOS-discuss] Only grub after boot

Josh Barton Josh.Barton at usurf.usu.edu
Wed Jun 8 17:50:05 UTC 2016

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    I replaced the OS drive with a 1TB HGST drive we had on hand and re-installed and Omni booted no problem. It seems as though there is an issue with the Seagate ST2000NX0243 (2TB) drives, can anyone corroborate this or recommend a good method for running disk diagnostics / verifying OmniOS compatibility?

    Thanks

    Josh Barton

    -----Original Message-----
    From: Paul B. Henson [mailto:henson at acm.org]
    Sent: Tuesday, June 7, 2016 7:10 PM
    To: Josh Barton <Josh.Barton at usurf.usu.edu>; omnios-discuss at lists.omniti.com
    Subject: RE: [OmniOS-discuss] Only grub after boot

    > From: Josh Barton
    > Sent: Tuesday, June 07, 2016 10:53 AM
    >
    > the word grub with a flashing cursor and I am unable to interact at
    > all. I
    did
    > notice a warning about i/o requests not being aligned with the 4096
    > byte
    disk

    I believe you said you only saw that warning when manually running grubinstall from the cli after dropping to the shell from the install cd?

    > should be. I have checked to ensure that I am running via AHCI in the
    BIOS.

    As I understand you are trying to boot via the SAS controller, so the SATA settings in the BIOS aren't relevant, unless you tried to connect one of the disks directly to an onboard SATA connector as I suggested earlier.

    I was working with Josh off list, I gave him a number of suggestions, I'm not sure which ones he has tried; perhaps it would be helpful if he reviewed what he has done? One of the suggestions was to try reinstalling grub, from what I understand that is when he saw the sector alignment warnings and it still did not boot successfully.

    I also suggested disabling the controller bios on the two controllers that he is not booting from, or connecting the boot disk directly to an onboard SATA port to see what happens. Beyond that, I suggested he try installing a Linux distribution to make sure it would boot just to rule out completely faulty hardware.

    Any other thoughts? Perhaps temporarily pulling out two of the controllers?
    Installing to a different disk on a different controller?

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