Console redirection does not display kernel messages on screen

[Eward Schippers]

Binary package hint: grub2

I followed the instructions for setting grub output to both the console (tty0) and serial (ttyS0)
However grub is giving no kernel message output on the console but is giving the correct output onthe serial console.
Below is my /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.

GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT="10"
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX=""
GRUB_CMDLINE_LINUX_DEFAULT="quiet console=tty0 console=ttyS0,115200n8"

# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=serial
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"

I tried GRUB_TERMINAL=serial console but grub wouldn't accept that.

In short on the screen it skips all the kernel messages and goes from grub loading directly to login prompt instead of outputting to both devices.

[Dan Buhrman (dan-buhrman)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 445952, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.