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

[Fantu]

the latest version now in Jammy include some option that can be added to
/etc/default/grub:

  * Don't add grub2 entries if GRUB_DISABLE_MEMTEST=true is present
    in /etc/default/grub (LP: #420967)
  * Make possible disable serial with GRUB_MEMTEST_DISABLE_SERIAL,
    enable multiboot with GRUB_MEMTEST_ENABLE_MULTIBOOT and add
    custom serial parameters with GRUB_MEMTEST_SERIAL_PARAMS
    (Closes: #898636, #612371)

** Changed in: memtest86+ (Ubuntu)
       Status: Triaged => Fix Released

** Changed in: memtest86+ (Ubuntu)
     Assignee: (unassigned) => Fantu (fantonifabio)

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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+:
  Fix Released
Status in memtest86+ package in Ubuntu:
  Fix Released
Status in Baltix:
  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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