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[NoOp]

Updating a 2 yr old thread for others that may have similar issues.
Archive is here:
http://comments.gmane.org/gmane.linux.ubuntu.user/208826

On 02/09/2010 05:44 PM, NoOp wrote:
> On 02/09/2010 05:09 PM, Tom H wrote:
>>>> $ sudo update-grub
>>>> Generating grub.cfg ...
>>>> Found linux image: /boot/vmlinuz-2.6.31-19-generic
>>>> Found initrd image: /boot/initrd.img-2.6.31-19-generic
>>>> Found linux image: /boot/vmlinuz-2.6.31-18-generic
>>>> Found initrd image: /boot/initrd.img-2.6.31-18-generic
>>>> Found memtest86+ image: /boot/memtest86+.bin
>>>> Found Windows 7 (loader) on /dev/sda1
>>>> Found Windows Vista (loader) on /dev/sda2 <=== this
>>>> Found Windows Vista (loader) on /dev/sda3 <=== and this
>>>> done
>> 
>>> I ended up commenting out (#) those last two entries. Of course tested
>>> with 'sudo update-grub' and they came back (expected). Commented them
>>> out again & life in the boot lane is much easier now. I'll wait to see
>>> if the new kernal updates that seem to be appearing every few days (I'm
>>> on -20 now) will change the commented out grub.cfg entries. I suspect it
>>> will.
>> 
>>> Also, wrt my comments about grub2 being a PITA; I am referring to issue
>>> like this whereby there are so many interacting files that it is
>>> difficult to simply edit one file (as in 'menu.lst') and have the
>>> preferences stick. I'm quite happy that grub2 picks up the 'Vista'
>>> entries etc., but not happy that there doesn't (yet) seem to be a way to
>>> refer to a 'master' grub2 menu file (outside of the generated grub.cfg)
>>> that will allow commenting out those entries to stick.
>> 
>> I have been looking at /etc/grub.d/30_os-prober and I think that I
>> have found a solution to your update-grub recovery problem.
>> 
>> Back up /etc/grub.d/30_os-prober, make the following change, and run update-grub
>> 
>> Add
>> 
>> ***begin
>> # Begin WinRecov removal
>> if [ "$LONGNAME" = "Windows Vista (loader)" ] ; then
>> continue
>> fi
>> # End WinRecov removal
>> ***end
>> 
>> between
>> 
>> ***begin
>> if [ -z "${LONGNAME}" ] ; then
>> LONGNAME="${LABEL}"
>> fi
>> ***end
>> 
>> and
>> 
>> ***begin
>> echo "Found ${LONGNAME} on ${DEVICE}" >&2
>> ***end
>> 
> 
> Tom, you are the man! Works! Thanks!
...

Tom, I ran into an issue with a new netbook with Win 7 Starter on it.
Grub 2 was showing both the Windows Recovery partitions as well as a
second (HP bootloader) 'Windows 7 (loader) /dev/sda2'. I finally figured
out that I could insert both 'if statements to get rid of both:

/etc/grub.d/30_os-prober:
====
wubi=

for OS in ${OSPROBED} ; do
  DEVICE="`echo ${OS} | cut -d ':' -f 1`"
  LONGNAME="`echo ${OS} | cut -d ':' -f 2 | tr '^' ' '`"
  LABEL="`echo ${OS} | cut -d ':' -f 3 | tr '^' ' '`"
  BOOT="`echo ${OS} | cut -d ':' -f 4`"

  if [ -z "${LONGNAME}" ] ; then
    LONGNAME="${LABEL}"
  fi

# WinRecov removal
if [ "$LONGNAME" = "Windows Recovery Environment (loader)" ] ; then
continue
fi

 if [ "$LONGNAME" = "Windows 7 (loader)" ] && [ "$DEVICE" = "/dev/sda2"
] ; then
continue
fi
# End WinRecov removal
===

For those wondering what all of this is about, read the thread. The
modifications are those starting with:

# WinRecov removal
and
ending with
# End WinRecov removal

Insert those bits following the section shown above.

But in short, the problem is that if you install Ubuntu on a Win 7
machine (as most do), the grub menu will show your Ubuntu kernel option,
a memtest (remove that by changing the permissions of
/etc/grub.d/20_memtest86+ to read only + change the permission back when
you want the memtest to appear), and multiple Windows 7 partitions:

Windows Recovery Environment (loader)
(you may even get several of these)
Windows 7 (loader) /dev/sda1
Windows 7 (loader) /dev/sda2

Not only are the menu items irritating, but they can be downright
dangerous for a standard user selecting the wrong menu item (note:
'Windows 7 (loader) /dev/sda1' is generally the *only* correct choice
for booting to Win7). User doesn't know which to select & selects
'Windows Recovery Environment (loader)' or 'Windows 7 (loader)
/dev/sda2' & from there on they can be pretty much screwed as Win7 will
take them into neverland... So the best option is to not give them the
option to select those to begin with. Hence the modifcations to
/etc/grub.d/30_os-prober.

Thanks again to Tom H for advising on modifying /etc/grub.d/30_os-prober
in the original thread. Added thanks to:
<http://forums.bodhilinux.com/index.php?/topic/1028-how-to-grub2-hide-windows-recovery-partition/>
and
<http://ubuntuforums.org/showpost.php?p=8343454&postcount=2>