Experienced Same issue: error: unknown terminal 'serial' error: unknown command `terminal'.
Have been testing multiple configurations with limited success. This command throws errors: GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1" This command seems to stop the errors.. but I can't get the boot menu to appear or shift key to be recognized: GRUB_SERIAL_COMMAND="serial --speed=115200" I have also messed with toggling GRUB_TERMINAL vs. GRUB_TERMINAL_INPUT / GRUB_TERMINAL_OUTPUT... tried various combinations of the lines below... GRUB_TERMINAL=serial GRUB_TERMINAL_INPUT="serial console" GRUB_TERMINAL_OUTPUT="console" Basically been adjusting the following lines with little to no success... I have been unable to get the menu to display at all via serial port. (Prior GRUB 1 configurations in Ubuntu 8 have been deployed to many servers with no problems... so this is starting to feel like a GRUB2 error). #GRUB_CMDLINE_LINUX_DEFAULT="" #GRUB_CMDLINE_LINUX_DEFAULT="quiet" #GRUB_CMDLINE_LINUX="" #GRUB_CMDLINE_LINUX_DEFAULT="" #GRUB_CMDLINE_LINUX="text console=tty0 console=ttyS0,115200n8" #GRUB_CMDLINE_LINUX="console=tty0 console=ttyS0,115200n8" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console #GRUB_TERMINAL=serial #GRUB_SERIAL_COMMAND="serial --speed=115200" #GRUB_TERMINAL_INPUT="serial console" #GRUB_TERMINAL_OUTPUT="console" #GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200" #GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/537849 Title: fails to deal with a serial console correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/537849/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
