How to restore missing missing chainloader in dual boot setup











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I installed windows successfully on a blank Dell laptop then installed Ubutnu 18.04 from a pen drive successfully. I was hoping this would create a dual boot system.



When I restart I first see a text output that says 



Invalid Partition Table!


And then the familiar purple screen and ubuntu loads. No option to load windows.
grub.cfg does not have the chainloader option.
os-prober does not seem to find windows.
I have rerun update-grub



Do I have any options that don't involve re-installing windows, it took a 3 or 4 hours to complete the windows install.



UEFI boot seems to be involved. I disabled it in the bios to be able to install both windows and linux






dual-boot grub2 uefi







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    up vote
    1
    down vote

    favorite












    I installed windows successfully on a blank Dell laptop then installed Ubutnu 18.04 from a pen drive successfully. I was hoping this would create a dual boot system.



    When I restart I first see a text output that says 



    Invalid Partition Table!


    And then the familiar purple screen and ubuntu loads. No option to load windows.
    grub.cfg does not have the chainloader option.
    os-prober does not seem to find windows.
    I have rerun update-grub



    Do I have any options that don't involve re-installing windows, it took a 3 or 4 hours to complete the windows install.



    UEFI boot seems to be involved. I disabled it in the bios to be able to install both windows and linux






    dual-boot grub2 uefi







    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I installed windows successfully on a blank Dell laptop then installed Ubutnu 18.04 from a pen drive successfully. I was hoping this would create a dual boot system.



      When I restart I first see a text output that says 



      Invalid Partition Table!


      And then the familiar purple screen and ubuntu loads. No option to load windows.
      grub.cfg does not have the chainloader option.
      os-prober does not seem to find windows.
      I have rerun update-grub



      Do I have any options that don't involve re-installing windows, it took a 3 or 4 hours to complete the windows install.



      UEFI boot seems to be involved. I disabled it in the bios to be able to install both windows and linux






      dual-boot grub2 uefi







      share|improve this question













      I installed windows successfully on a blank Dell laptop then installed Ubutnu 18.04 from a pen drive successfully. I was hoping this would create a dual boot system.



      When I restart I first see a text output that says 



      Invalid Partition Table!


      And then the familiar purple screen and ubuntu loads. No option to load windows.
      grub.cfg does not have the chainloader option.
      os-prober does not seem to find windows.
      I have rerun update-grub



      Do I have any options that don't involve re-installing windows, it took a 3 or 4 hours to complete the windows install.



      UEFI boot seems to be involved. I disabled it in the bios to be able to install both windows and linux






      dual-boot grub2 uefi




      dual-boot grub2 uefi






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 29 at 21:02









      teknopaul

      80669




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