Miscellaneous

How do I uninstall and reinstall grub?

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How do I uninstall and reinstall grub?

Uninstalling GRUB 2

  1. Open a terminal: Applications, Accessories, Terminal.
  2. Optional: Make backup copies of the main GRUB 2 directories and files. sudo cp /etc/default/grub /etc/default/grub.old.
  3. Remove GRUB 2. sudo apt-get purge grub-pc.
  4. Install GRUB 0.97.
  5. With grub installed, the user must still create the menu.
  6. Reboot.

Does installing Windows 10 Remove grub?

Per my experience, Windows 10 overwrites the master boot record with its own, regardless of whether you perform a nuke-and-reload or a side-along installation. As long as you make correct choices in Windows partition selection screen, GRUB is removed for good.

How do I reactivate my grub account?

Reactivate GRUB automatically: Run the following command: #grub-install /dev/[device name]…Mount all partitions and change root from the temporary root to the root partition of the installed system:

  1. #mkdir /mnt/tmp.
  2. #mount /dev/sdXY /mnt/tmp (/dev/sdXY is the root partition)
  3. #chroot /mnt/tmp.
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Why does windows replace grub with Grub?

When you install Windows, Windows assumes it is the only operating system (OS) on the machine, or at least it does not account for Linux. So it replaces GRUB with its own boot loader. What you have to do is replace the Windows boot loader with GRUB.

Can I install Grub to a partition?

Never install grub to a partition like you did to /dev/sda6. If that was NTFS, you could totally break Windows. And systems do not boot from partitions (ok UEFI does use an ESP, but BIOS does not use partitions). And all those warnings should have told you, that there was a better way.

How to fix “no partition Grub rescue error”?

Any problem with the BIOs can also lead to no such partition grub rescue error. Here are steps to reset the BIOS settings. Step 1: Force shut down your device and then restart it. Step 2: Now click F2 till the system screen window appear. Step 3: By using the right arrow, head towards the exit menu.

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Why is Grub rescue not working in Windows 10?

While making any change in partitions, sometimes the correct partition is deactivated which may lead to windows 10 grub rescue issues. It happens because only the active partition can initiate the boot loader. In this regard, you have checked the partition and activate the correct partition so the BIOS could initiate the boot loader.