A basic question regarding grub display options

[PM]

> That does indeed work for me; all of my systems have the excutable bit
> removed. You can test for yourself; open a terminal and enter (without
> the '$' - that's the prompt):
>
> $ sudo chmod 644 /etc/grub.d/20_memtest86+
>
> Then reboot and you should no longer see it on the grub menu. To change
> it back should you need/want to in the future:
>
> $ sudo chmod 755 /etc/grub.d/20_memtest86+
>

The main thing with this package 'memtest86+' is that it is available only
while getting booted and not otherwise! It is not possible to check the RAM
after getting logged in since the RAM could be in continuous usage!
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