Edited grub - cant boot LL

[gold_finger]

I believe you only need to make one small change to make the grub menu appear on boot.  Try the following using a terminal once booted into live LL.

Mount the installed root partition to the live environment.

Code:

sudo mount /dev/sda5 /mnt

Now we'll chroot into your installed system, make change to the grub file, then update grub.

Do the following to chroot into the system.

Code:

for i in /dev /dev/pts /proc /sys; do sudo mount -B $i /mnt$i; done
sudo chroot /mnt

This command will open the grub file with the text editor.  (No sudo at beginning of command because your are already operating as root at this moment.)  If you see various error messages pop-up in the terminal, just ignore them.

Code:

leafpad /etc/default/grub

In the opened file, just change the following line to what I have in RED.
GRUB_TIMEOUT=5

Save the file and close the text editor.

Back in terminal do:

Code:

sudo update-grub

Now exit from chroot environment and unmount everything.  (Each line below is a separate command -- do one at a time.)

Code:

exit
for i in /sys /proc /dev/pts /dev; do sudo umount /mnt$i; done
sudo umount /mnt

Close terminal, shutdown/reboot without the LL dvd/usb and hopefully you now see the grub menu -- should display with a 5 second countdown before it boots the default Windows entry.