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Re: How to get rid of an entry in grub?

David Guntner wrote:

Klaus grabbed a keyboard and wrote:

On 30/08/13 19:11, David Guntner wrote:

David Guntner grabbed a keyboard and wrote:

Not only that, but given the comments around all the sections that point
at /etc/grub.d/{whatever}, does this mean that /boot/grub/grub.cfg is
being built by something, from those other files?  If so, it seems that
directly editing /boot/grub/grub.cfg might not be such a good idea....

Well, looking again at the grub.cfg file, specifically the top of the
file, which has this in it:


#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

I'd say that answers *that* question (of whether or not it's a good idea
to edit the file directly). :-)  So I'm not entirely sure why someone
would point anyone at that file as the way to edit the
configuration.... :-/

Anyway, if anyone else knows how I can convince grub that there's
nothing on /dev/sdb1 to try and boot from (so I can get it off the boot
menu), I'd sure love to know how to do it. :-)  Why does the
30_os-prober come to the conclusion that there's something there?

You can disable the "os-prober" action by setting
GRUB_DISABLE_OS_PROBER = true
in /etc/default/grub.
See comments in /etc/grub.d/30_os-prober and in
/usr/share/doc/os-prober/README


Ok, I'll look into that.  Of course, I'm still kinda wondering why it
thinks there's a version of Linux out on that drive - I mean, if  it's
actually *probing* the drive and it doesn't find something to boot from,
why is it coming up with that?

Hmmm.....  I wonder if the MBR for the drive sill has a loader on it,
even though I removed all partitions and repartitioned it?  Is there a
utility out there that can wipe the MBR of a drive without touching the
rest of the contents?



There is http://bootinfoscript.sourceforge.net/ also.

Hugo
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