This is my first time trying to install a Linux operating system after reading many interesting exciting articles about it, but I really need some help! I am trying to install ubuntu-14.04.3 onto my Toshiba satellite cl45-c4330 laptop.

I used Universal USB installer to put ubuntu-14.04.3 onto my external hard drive (I didn't have a flash drive on hand) and after changing the boot order to start from USB, I was able to start the Ubuntu installation.

However, on the third page of the installation I received this error:

fsyncing/closing/dev/mmcblk0rpmb: input/output error. Retry, Ignore, Cancel
I wasn't sure what to do at that point, so I just clicked ignore, and the rest of the installation process seemed to work just fine until the very end where it prompts a reboot. after rebooting, I only get a black screen with the message

Reboot and select proper boot device
or insert Boot media in selected Boot device and press a key
I made sure that I was booting from the laptop's SSD hard drive and not USB external drive, but I still get the same message. But if I try booting from the external USB drive, it just asks me if I want to install Ubuntu.

So I tried reinstalling from USB again and during the second installation attempt I got the same error on page 3:

fsyncing/closing/dev/mmcblk0rpmb: input/output error
however, on the 4th page of the installation it says This computer currently has ubuntu-14.04.3 LTS on it. What would you like to do?

What? So if Ubuntu is already installed on the laptop's hard drive, why wasn't it able to boot from the hard drive? I chose "erase disk and install Ubuntu" went through the installation, rebooted the laptop, and again "Reboot and select proper boot device" I'm confused... I thought maybe it was a bad download, so I tried downloading the Ubuntu ISO a second time, but no luck...

Boot repair didn't solve the problem, but here is the link to the boot info log paste.ubuntu.com/13266107

Can anyone tell me what other information I could provide to help diagnose the problem? Thank you in advance!

Did you check if it is an uefi laptop?

As I don't know the Ubuntu installer, it would have been great to know what that 4th page tells you.

BTW does the installer boot screen shows a rescue or command line option?

If you used the Universal USB installer to put Ubuntu on the drive, you must have a windows operating system of some kind on the computer. You neglected to indicate which windows you have. Makes a big difference.

Tonus, Yes I do believe it's uefi, but is there a way I can check to make sure?
the 4th install page is where it says that Ubuntu is already installed, i'll include a screen pic here http://i.imgur.com/oiGhJHo.jpg


When the install reboots the system and tries to boot Ubuntu from the laptop's hard drive, it doesn't go to a command line or rescue or anything, its just a black screen that says:

"Reboot and select proper boot device
or insert Boot media in selected Boot device and press a key"
here i'll include another screen pic http://i.imgur.com/drWh5NP.jpg

the only way I can get out of that screen is to boot from the flash drive, and then it just asks to install Ubuntu again.

yancek, my laptop had windows 10 pre-installed on it before overriding it with Ubuntu, sorry I didn't mention that before!