I tried to upgrade my Ubuntu to the recently released 18.04 LTS from the 16.04 version. After the install when I powered it off and then on, I was taken to the GRUB screen instead of the normal booting. I tried to follow the steps in the this answer here: GNU GRUB Terminal - Instead of Ubuntu login screen
Here's a run down of what I have typed:
set pager=1
set root=(hd0, 1)
linux /boot/vmlinuz-4.15.0-20-generic root=/dev/sda1
initrd /boot/initrd.img-4.13.0-32-generic
boot
That showed me some error in initramfs shell like
ALERT /dev/sda1 does not exit dropping to shell
I realised that my root system location might not be in sda1. So, I tried the steps again with different sda's. When I am doing that I now get this error:
error: disk `(hd0, ' not found.
Please help.
