I used to have a dual boot with Windows 7 and Ubuntu 14.04. I wanted to update the latter to 18.04, so I made a bootable USB with Rufus and made the replacement. The Ubuntu installer itself told me that it had identified Ubuntu 14.04 in the computer, and it asked me whether I wanted to uninstall it to install the newer version. I clicked on this option, and then when I tried to boot with Ubuntu in the GRUB menu, a shell appears:
Gave up waiting for root device. Common problems:
— Boot args (cat /proc/cmdline)
— Check rootdelay= (did the system wait long enough?)
— Check root= (did the system wait for the right device?)
— Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uuid/<long-number-i-wont-type> does not exist.
Dropping to a shell!
BusyBox v.1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
Enter 'help' for list of built-in commands.
(initramfs)
To solve this, I ran from the Live USB the Boot Repair tool. After doing this, when I turn on the computer, the GRUB just shows Ubuntu. Namely, I can't access to Windows anymore, because the screen that lets me select the OS doesn't show it now. The Ubuntu booting was solved, though, but I would like to have the previous GRUB menu back.
The files are still there I believe, because I can see the Windows partition from my Ubuntu.
Here is the output of the Boot Repair I performed before the issue appeared.
Is there any way to do this?
