[Bug 567955] Re: grub2 always adds "memtest86 serial console" even when no serial port

[Michael Richardson]

Actually, you likely do have hardware for the serial ports. It's part of the legacy ISA stuff in your north bridge.
Just your laptop does not have the pins hooked up to a DB9.  My laptop's docking station exposes those.

What I think is that memtest86 should look for console= in the kernel config file, and not add the serial console unless 
kernel has one.

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https://bugs.launchpad.net/bugs/567955

Title:
  grub2 always adds "memtest86 serial console" even when no serial port

Status in “memtest86+” package in Ubuntu:
  Triaged
Status in Baltix GNU/Linux:
  New

Bug description:
  Binary package hint: grub2

  I have a laptop that does not and will never have an ordinary serial
  port.

  Yet grub2 insists on adding the memory test for serial console that
  WILL NEVER WORK!.

  There appears to be no way to disable this.

  For some reason nodes are created in /dev for ttyS0 through ttyS3, but
  there is no underlying device.  stty will return error, as will "cat".
  They are like a hanging symlink.

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