[Bug 490451] Re: Unable to set multiple grub terminals using /etc/default/grub

[Richard Laager]

This is somewhat working in Natty, but only one terminal (whichever is
specified first) accepts input. Some Google searching suggests I want
"terminal --timeout=5 console serial" but that doesn't work either.

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https://bugs.launchpad.net/bugs/490451

Title:
  Unable to set multiple grub terminals using /etc/default/grub

Status in GRand Unified Bootloader:
  Unknown
Status in “grub2” package in Ubuntu:
  Fix Released
Status in “grub2” source package in Lucid:
  New
Status in “grub2” package in Debian:
  Fix Released

Bug description:
  Binary package hint: grub2

  Using the old /boot/grub/menu.lst setup, if one wanted grub terminals
  on multiple output devices, a line such as:

  "terminal serial console"

  would work for putting the grub terminal on both the serial port and
  the VGA console.

  However, in the new /etc/default/grub world, attempting the analog of:
  GRUB_TERMINAL="serial console"

  produces the error:

  Invalid output terminal "serial console"

  I suspect this is due to the checking of the GRUB_TERMINAL variable on
  line 161 of /usr/sbin/grub-mkconfig, where only specific strings are
  allowed.