error: can't find command 'export_symbol'












0















i have a dual boot system with windows10 and ubuntu 16.04
last time I work with ubuntu, system do not get shutdown and a black screen was shown I wait few minutes but it was still showing
I restart computer using restart key, but grub bootloader did't show up, first this message was shown repetedly:



error: can't find command 'export_symbol'


and next this



error: can't find command 'export_symbol_GPL'


and after a few seconds the black screen of grub appeared



dose enyone knows what is the problem??










share|improve this question





























    0















    i have a dual boot system with windows10 and ubuntu 16.04
    last time I work with ubuntu, system do not get shutdown and a black screen was shown I wait few minutes but it was still showing
    I restart computer using restart key, but grub bootloader did't show up, first this message was shown repetedly:



    error: can't find command 'export_symbol'


    and next this



    error: can't find command 'export_symbol_GPL'


    and after a few seconds the black screen of grub appeared



    dose enyone knows what is the problem??










    share|improve this question



























      0












      0








      0








      i have a dual boot system with windows10 and ubuntu 16.04
      last time I work with ubuntu, system do not get shutdown and a black screen was shown I wait few minutes but it was still showing
      I restart computer using restart key, but grub bootloader did't show up, first this message was shown repetedly:



      error: can't find command 'export_symbol'


      and next this



      error: can't find command 'export_symbol_GPL'


      and after a few seconds the black screen of grub appeared



      dose enyone knows what is the problem??










      share|improve this question
















      i have a dual boot system with windows10 and ubuntu 16.04
      last time I work with ubuntu, system do not get shutdown and a black screen was shown I wait few minutes but it was still showing
      I restart computer using restart key, but grub bootloader did't show up, first this message was shown repetedly:



      error: can't find command 'export_symbol'


      and next this



      error: can't find command 'export_symbol_GPL'


      and after a few seconds the black screen of grub appeared



      dose enyone knows what is the problem??







      dual-boot grub2






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 10 hours ago







      b.abbs

















      asked 10 hours ago









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