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I have Windows in my lap and installed Freya recently. During installation I choosed something else option and installed in it. Both install in different directory. I can see Windows installation directory and other drives. But it's not showing while booting os. It boots directly Freya. I need to select os while booting.

  • directory==partitions ? – Ravan Dec 4 '15 at 7:22
  • Please see my answer and let me know :) – Ravan Dec 4 '15 at 10:15
  • sure, i will let you know with in 10 hours, i am not infront of my personal lap. – Kvvaradha Dec 4 '15 at 10:16
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If your computer boots straight to Freya:

  • Run:

    sudo update-grub
    sudo reboot
    
  • If not solved,

    Open terminal and run following commands:

    sudo mount /dev/sda6 /mnt
    sudo grub-install --boot-directory=/mnt/boot /dev/sda
    sudo update-grub
    

    Note: In first command /dev/sda6 is freya /root partition.

    If you are not sure about partitions number use sudo fdisk -l

    No need to run boot repair using live dvd/usb.

At last, if anything not working, use boot-repair from live usb.

See here for instructions: Boot-repair


If you want to change time for selecting OS in grub:

sudo nano /etc/default/grub

Change GRUB_TIMEOUT value which is 10 by default. Time in seconds. If you keep -1, it will stay indefinitely until you select.

Also make sure, there is a # before GRUB_HIDDEN_TIMEOUT=0 like:

#GRUB_HIDDEN_TIMEOUT=0

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