[syslinux] What extlinux -M does?

[Regid Ichira]

--- On Sun, 11/27/11, Jeffrey Hutzelman <jhutz at cmu.edu> wrote:

> Essentially, -M behaves similarly to (but overrides) the DEFAULT
> directive, but only with respect to the menu system (it does not
> affect the command line) and only if 'MENU SAVE' is in effect.

  With /boot/extlinux/extlinux.conf containing:

    default 1
    timeout 50

    label 0
        Whatever chaining is required for MS
    label 1
        kernel old
    label 2
        kernel new

Will
    extlinux -M 2 /boot/extlinux
make the system boot new kernel once, after which old kernel will
be used?