ubuntu 16.04.5 boot fail, what shoud I do next?












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I've been using ubuntu 16.04.5 for a while and this morning found my vnc terminal was stuck with a screen saver screen. I entered the machine with ssh and saw a message saying 'grub is not installed'. I briefly thought about installing grub (by sudp apt install grub), but decided to just reboot. But the system doesn't boot-up. It's just a black screen after a brief purple screen.

By pressing 'shift key' constantly (I don't know why I have to keep pressing it, when the internet says I only have to keep the shift key pressed), I can get into the grub menu, and I can see {ubuntu, memtest, memtest??}. I chose ubuntu and there I see 6 options. so I chose one (the latest, with recovery option) and after logging in, removed the 'quiet and splash' from the GRUB_DEFAULT_OPTION and ran 'sudo update-grub' and rebooted. Now I can see the boot messages, and the final message is



.....
nfined" name="/usr/lib/cups/backend/cups-pdf" pid=1047 comm="apparmor_parser"
[ 32.804459] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready
[ 32.804776] igb 0000:07:00.0 enp7s0: igb: enp7s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
[ 32.804971] IPv6: ADDRCONF(NETDEV_CHANGE): enp7s0: link becomes ready
[ 36.778451] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready
[ 36.818973] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready


what should I try next? I want recover only the broken point if possible. If not, I have to make a ubuntu 16.04 disk and do just a overwrite install? please tell me.. Thank you!










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    0















    I've been using ubuntu 16.04.5 for a while and this morning found my vnc terminal was stuck with a screen saver screen. I entered the machine with ssh and saw a message saying 'grub is not installed'. I briefly thought about installing grub (by sudp apt install grub), but decided to just reboot. But the system doesn't boot-up. It's just a black screen after a brief purple screen.

    By pressing 'shift key' constantly (I don't know why I have to keep pressing it, when the internet says I only have to keep the shift key pressed), I can get into the grub menu, and I can see {ubuntu, memtest, memtest??}. I chose ubuntu and there I see 6 options. so I chose one (the latest, with recovery option) and after logging in, removed the 'quiet and splash' from the GRUB_DEFAULT_OPTION and ran 'sudo update-grub' and rebooted. Now I can see the boot messages, and the final message is



    .....
    nfined" name="/usr/lib/cups/backend/cups-pdf" pid=1047 comm="apparmor_parser"
    [ 32.804459] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready
    [ 32.804776] igb 0000:07:00.0 enp7s0: igb: enp7s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
    [ 32.804971] IPv6: ADDRCONF(NETDEV_CHANGE): enp7s0: link becomes ready
    [ 36.778451] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready
    [ 36.818973] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready


    what should I try next? I want recover only the broken point if possible. If not, I have to make a ubuntu 16.04 disk and do just a overwrite install? please tell me.. Thank you!










    share|improve this question

























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      0








      I've been using ubuntu 16.04.5 for a while and this morning found my vnc terminal was stuck with a screen saver screen. I entered the machine with ssh and saw a message saying 'grub is not installed'. I briefly thought about installing grub (by sudp apt install grub), but decided to just reboot. But the system doesn't boot-up. It's just a black screen after a brief purple screen.

      By pressing 'shift key' constantly (I don't know why I have to keep pressing it, when the internet says I only have to keep the shift key pressed), I can get into the grub menu, and I can see {ubuntu, memtest, memtest??}. I chose ubuntu and there I see 6 options. so I chose one (the latest, with recovery option) and after logging in, removed the 'quiet and splash' from the GRUB_DEFAULT_OPTION and ran 'sudo update-grub' and rebooted. Now I can see the boot messages, and the final message is



      .....
      nfined" name="/usr/lib/cups/backend/cups-pdf" pid=1047 comm="apparmor_parser"
      [ 32.804459] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready
      [ 32.804776] igb 0000:07:00.0 enp7s0: igb: enp7s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
      [ 32.804971] IPv6: ADDRCONF(NETDEV_CHANGE): enp7s0: link becomes ready
      [ 36.778451] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready
      [ 36.818973] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready


      what should I try next? I want recover only the broken point if possible. If not, I have to make a ubuntu 16.04 disk and do just a overwrite install? please tell me.. Thank you!










      share|improve this question














      I've been using ubuntu 16.04.5 for a while and this morning found my vnc terminal was stuck with a screen saver screen. I entered the machine with ssh and saw a message saying 'grub is not installed'. I briefly thought about installing grub (by sudp apt install grub), but decided to just reboot. But the system doesn't boot-up. It's just a black screen after a brief purple screen.

      By pressing 'shift key' constantly (I don't know why I have to keep pressing it, when the internet says I only have to keep the shift key pressed), I can get into the grub menu, and I can see {ubuntu, memtest, memtest??}. I chose ubuntu and there I see 6 options. so I chose one (the latest, with recovery option) and after logging in, removed the 'quiet and splash' from the GRUB_DEFAULT_OPTION and ran 'sudo update-grub' and rebooted. Now I can see the boot messages, and the final message is



      .....
      nfined" name="/usr/lib/cups/backend/cups-pdf" pid=1047 comm="apparmor_parser"
      [ 32.804459] IPv6: ADDRCONF(NETDEV_UP): enp7s0: link is not ready
      [ 32.804776] igb 0000:07:00.0 enp7s0: igb: enp7s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
      [ 32.804971] IPv6: ADDRCONF(NETDEV_CHANGE): enp7s0: link becomes ready
      [ 36.778451] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready
      [ 36.818973] IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready


      what should I try next? I want recover only the broken point if possible. If not, I have to make a ubuntu 16.04 disk and do just a overwrite install? please tell me.. Thank you!







      16.04 boot grub2 vnc






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      asked Jan 28 at 7:59









      Chan KimChan Kim

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          It looks most like an unattended update gone wrong. Try those steps first.



           sudo dpkg --configure -a





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            It looks most like an unattended update gone wrong. Try those steps first.



             sudo dpkg --configure -a





            share|improve this answer




























              0














              It looks most like an unattended update gone wrong. Try those steps first.



               sudo dpkg --configure -a





              share|improve this answer


























                0












                0








                0







                It looks most like an unattended update gone wrong. Try those steps first.



                 sudo dpkg --configure -a





                share|improve this answer













                It looks most like an unattended update gone wrong. Try those steps first.



                 sudo dpkg --configure -a






                share|improve this answer












                share|improve this answer



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                answered Jan 28 at 10:27









                Domo N CarDomo N Car

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