[Bug 1537252] Re: Xenial Server daily ISO boot in text mode interface isn't working - kind of loop

[Diogo Matsubara]

Hi Thiago,

thanks for the bug report. I was able to reproduce the issue as you
described. I'm confirming the bug and asked one of the core ubuntu
developers to set the importance appropriately.

** Changed in: syslinux (Ubuntu)
       Status: New => Confirmed

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Title:
  Xenial Server daily ISO boot in text mode interface isn't working -
  kind of loop

Status in syslinux package in Ubuntu:
  Triaged

Bug description:
  Guys,

   It is not possible to use the textmode with latest Xenial ISO...

  
   Steps to reproduce:

   1- Download it:

   cd ~ ; wget http://cdimage.ubuntu.com/ubuntu-server/daily/current
  /xenial-server-amd64.iso;

   2- Boot it by running: kvm -cdrom ~/xenial-server-amd64.iso -m 1024 ;

   3- Wait for first screen, the one you choose your language, then, hit
  ESC;

   4- Press ESC again, to leave graphical boot menu;

   5- Hit "OK" button, to enter text interface;

   6- At "boot:" prompt, type something...

   7- Hit ENTER;

   8- BOOM! It goes back to graphical boot menu! Where it should
  accepted the commands you typed on step 6...

  
   Ubuntu 14.04 behaves differently, it accepts the command and boot proceeds.

   This problem is specially bad for automating Ubuntu builds when using
  Packer, for example, if you take a look here:

  https://github.com/thasmo/packer.templates/blob/master/template/ubuntu-14.04.json

   ...at line 27, it works like a charm but, if you update this
  ubuntu-14.04.json file to, lets say, "ubuntu-16.04.json", then, it
  will not work!

   Because Packer "types" commands via VNC automatically, and it "hit"
  ENTER in the end (line 27), which doesn't work and it goes back to
  graphical boot menu...     :-/

  After researching a bit on this problem, I think that it is a syslinux
  bug, or something around it, so, I'm opening it here...

  Thanks!
  Thiago

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