pls see attached text file for a detailed solution for your problem.
-With Thanks & Regards
Tanzeem M.B
<Programmer/>
On 30 April 2017 at 11:35, Roopesh Sivam <[email protected]> wrote:
> https://neosmart.net/EasyBCD/
> didi you try this. If you can login to windows or linux, install and try
> this.
>
>
>
> On Sat, Apr 29, 2017 at 9:00 PM, Pirate Praveen <[email protected]>
> wrote:
>
>> I suggest you ask on #gnulinuxlovers:matrix.org on matrix or
>> #gnulinuxlovers on freenode irc They have 100% success in GNU/Linux
>> installatiom
>>
>> On 2017, ഏപ്രിൽ 27 3:25:28 PM IST, Jemshid KK <[email protected]>
>> wrote:
>>>
>>> Hi
>>> A friend of mine is in Trivandrum and he has difficulty in re-installing
>>> grub after Windows 10 installation. Can anybody give a hand?
>>>
>>> Jemshid
>>> --
>>> Jemshid KK | Applied Mathematician | +91 9349101566
>>> <+91%2093491%2001566>
>>>
>>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
>> --
>> --
>> "Freedom is the only law".
>> "Freedom Unplugged"
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http://www.ilug-tvm.org
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Windows will overwrite the boot sector whenever you install it.
In general install windows first then linux.
You can repair the grub by booting from a live disk of linux
and there should be an option to repair-boot, which will repair your grub.
Restart it and now you should be able to see both the OS.
Or you can boot from a live cd and perform the following steps:
Boot from a live CD (CD/DVD or flash drive).
Become root or use sudo with commands below.
List the available partitions if needed: fdisk -l
Windows will almost certainly exist on /dev/sda1: mount /dev/sda1 /mnt
Reinstall GRUB in the MBR: grub-install --root-directory=/mnt/ /dev/sda
Reboot: shutdown -r now
Restore the GRUB menu: update-grub
Best solution
============
https://askubuntu.com/questions/655011/windows-10-upgrade-kills-grub-and-boot-repair-doesnt-help
https://askubuntu.com/questions/88384/how-can-i-repair-grub-how-to-get-ubuntu-back-after-installing-windows
Essentially the steps are :
1. Using Ubuntu Live to boot in 'Try Ubuntu' mode.
2. Use GParted to verify the correct linux partition (e.g. /dev/sda2 ).
3. Mount the linux partition :
sudo mount /dev/sda2 /mnt #Replace sda2 with your partition number
4. Mount all other linux system folders :
for i in /sys /proc /run /dev; do sudo mount --bind "$i" "/mnt$i"; done
5. chroot into your install
sudo chroot /mnt
6. Now that you are logged in your installation (not the Ubuntu Live) just do
update-grub
grub-install /dev/sda
update-grub
exit
sudo reboot
More detailed steps
-------------------
First live boot to your Linux system, using external Live CD/USB Drive, then
follow these commands to re-install GRUB on MBR.
mount your Linux installed partition to some mount point. here XY is the
number of your Linux distro partition.
sudo mount <root-partition[e.g. /dev/sdaXY]> <mount-point[e.g. /mnt/]>
Now bind some essential live root partition directories to mounted root
partition at /mnt.
sudo mount --bind /dev /mnt/dev && sudo mount --bind /dev/pts /mnt/dev/pts
&& sudo mount --bind /proc /mnt/proc && sudo mount --bind /sys /mnt/sys
Now, change the root to newly mounted partition directory.
sudo chroot <mount-point[e.g. /mnt/]>
Now, install the GRUB using grub-install command at your HDD MBR.
grub-install /dev/sda
Finally update the grub entries to show newly detected partition operating
systems.
update-grub
And at last unmount all the binded partition directories, and then reboot.
sudo reboot
Option3
=======
run this in Windows as an administrator:
bcdedit /set {bootmgr} path \EFI\ubuntu\grubx64.efi
Grub appears fine on boot and I can boot into GNU/Linux and Windows 10 fine.
https://www.cybrary.it/0p3n/restoring-grub-installing-windows/
https://itsfoss.com/no-grub-windows-linux/
https://askubuntu.com/questions/655825/restoring-grub-launcher-after-windows-10
