[Bug 537849] Re: fails to deal with a serial console correctly

[theparanoidone]

Update as of 2011-11-30
Some package update appears to have revert/changed.  The above notes an comments no longer seem valid for Ubuntu 10.04

Below is the new configuration setting we have had to use to make Ubuntu
10.04 work with serial;  it is still not 100% as physical console access
to the grub menu will not work.

Here are the new settings:

Ubuntu 10.04 appears to be working with this now:
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=7
GRUB_HIDDEN_TIMEOUT_QUIET=false
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX="console=tty1 console=ttyS0,115200n8"
GRUB_TERMINAL="serial"
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"


*** Notice GRUB_TERMINAL_INPUT was changed back to just GRUB_TERMINAL="serial"

- ENABLED, com1, vt100, 115200, redirect after console *****DISABLED*****
-- yes / serial motherboard access
-- yes / serial grub console access
-- serial console shift key *does not* work to display menu
-- serial console tapping ESC multiple times quickly will allow menu to be displayed
-- no / no physical console displayable menu... BUT if you hit ESC it will appear on physical console
---- this is different than Ubuntu 8 and 11 which allows you to simultaneously control the grub menu from serial or console

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https://bugs.launchpad.net/bugs/537849

Title:
  fails to deal with a serial console correctly

Status in “grub-installer” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub-installer

  When I install lucid on a serial console, grub-installer fails to
  setup the kernel options correctly.

  On the machine in question, console=ttyS1,38400 - this is not what
  grub-installer sets up.

  After manually fixing default/grub and running update-grub, I still
  see:

  error: bad unit number.
  error: unknown terminal 'serial'
  .
  error: unknown command `terminal'.
  error: unknown terminal 'serial'
  .
  error: unknown command `terminal'.

  before the kernel boot proceeds.

  lamont

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