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Friday, November 16, 2012

"No bootable device" after successful ESXi 5 installation

Posted on 2:40 PM by Unknown

     Did you just install esxi 5 successfully then cant boot into your host?
    Looks like some people on this thread were able to get it working.
    http://communities.vmware.com/message/2149004

    From ldaprat
    "With ESXi 5, ESX no longer uses MBR for boot, it has gone to GPT-based partitions instead.    Which is fine, if your BIOS (and mine) supported it correctly.      More details here:  http://communities.vmware.com/message/1822854?tstart=0

    There are two ways past this:
    1) try changing your BIOS to enable UEFI support - then re-install completely.     This did not work for me, I got purple screen of death when trying to do the ESXi install.    (I chalk this up to problems with UEFI implementation in the BIOS revision on my older motherboard.)

    2) Re-install ESXi 5, and during initial install press Shift-O when prompted.   Add formatwithmbr to the options, proceed with install."


    *note if you delete

    Why does this happen?
    By default ESXi 5.0 uses GPT based partitions tables and not MBR like it did previously.  This allows you to have disks which are greater than 2TB in size, but some systems are incompatible with it (possibly including yours) or need to have the correct BIOS setting.

    You can try changing your BIOS to see if it's compatible with EFI or will work in "legacy/compatibility mode".  Alternatively you can reinstall and use the "formatwithmbr" setting at the boot prompt which will cause the partitions to be set up the way they were in ESX 4.x.  -PatrickD
    Pasted from <http://communities.vmware.com/message/1822854>




    Looks like it works on various intel mobos
    Intel DG35EC
    Intel DQ35J0
    Intel DP35DP
    Intel D965WH
    Intel DB75EN
    Those are the ones reported above, probably works with more.

    My own tests with runweasel formatwithmbr   This is good:



    This is what comes up when you press shit+o


    Now add formatwithmbr


     now install normally.













    **********************************************************************************
    My own tests with runweasel removed and ONLY formatwithmbr   DON’T DO THIS



    Typing in formatwithmbr after removing runweasel
    Hit enter





    It installed itself without input I DID NOT GET THIS, which I did when I left the runweasel command



    When I install with formatwithmbr, I don’t have a local datastore though esxi does load right into esxi,
    But upon reboot it doesn’t see anything  and goes to PXE







    ******************










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