Hi, I had installed Ubuntu 16.04 and win8.1, and I reinstall my win8.1 and as expected, grub disappeared. So I boot Ubuntu 16.04 in USB and reinstall grub. So now grub appear and I can log win8.1, but logging Ubuntu, it shows emergency mode !
My fdisk -l output is attached and I mount sda8 and reinstall grub as I used to do many times before!
Fast boot in windows is disabled and I also update grub in emergency mode terminal.
How can I solve this issue ?