Ubuntu 10.04 Re-Test
-----------------------------

- ENABLED, com1, vt100, 115200, redirect after console
*****DISABLED*****

Grub  (NON WORKING CONFIG)
--------------------
GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=5
GRUB_HIDDEN_TIMEOUT_QUIET=true
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 console"   #### THIS FAILS ###
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no 
--stop=1"

>> root@fury:/etc/init# update-grub
>> Invalid output terminal "serial console"
... this is an error... it's supported in documentation and works in ubuntu 11


Partially Working Ubuntu 10.04 Config
----------------------------------------------------
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_INPUT="serial console"
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no 
--stop=1"

*** Notice GRUB_TERMINAL was changed to GRUB_TERMINAL_INPUT

- ENABLED, com1, vt100, 115200, redirect after console *****DISABLED*****
-- yes / motherboard serial 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

In other words... it "kind-of" works.  You can get serial administration
working fairly well at the cost of slight physical grub console access
being limited (but ultimately working).

Assuming you are running a remote server environment... one could argue
this is acceptable as the majority of the administration is done
remotely anyways... so as long as the remote serial administration is
solid... this is a plausible solution.

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

Title:
  fails to deal with a serial console correctly

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