Lost GRUB dual boot after updating to BIOS 3.07

[Animesh_Sahu]

Its very simple to reset, I’ve post this in other thread.

@Animesh_Sahu

Restoring the EFI entries is as easy as running these from live boot:

mount /dev/<rootpart> /mnt
mount /dev/<efipart> /mnt/boot/efi
for i in /dev /sys /proc; do mount --bind $i /mnt$i; done
chroot /mnt
sudo grub-install
sudo update-grub

for anybody wanting to upgrade BIOS after installing any linux distro.

And you could identify the partitions that have to be mounted by running lsblk