I recently tried to install Linux Mint as the only OS on a computer running Windows 10 and the installation via the Linux I had on my USB failed. When I rebooted, I no longer have the option to boot into windows, and when I try to boot into the USB Linux, I get the error
Couldn't get size: 0x8000000000000e
Kernel panic - not syncing: VFS: unable to mount root fs on unknown block(0,0)
From what I've googled it seems like I'm perhaps missing the following
You are missing the initramfs for that kernel. Choose another kernel from the GRUB menu under Advanced options for Ubuntu and run sudo update-initramfs -u -k version to generate the initrd for version (replace version with the kernel version string such as 4.15.0-36-generic) then sudo update-grub.
But where can I run these commands? There's no command line to my knowledge. Any help greatly appreciated.
Also, I'm stuck on this boot screen with these error messages. Are there commands to reboot from here or do I need to turn the computer off manually?