I installed Ubuntu 14.04 on a USB using Universal-USB-Installer-184.108.40.206 and I installed the 64-bit version.
I want to put Ubuntu on my mom's laptop. We already had Ubuntu on it (v 14.04) but it was really laggy and it had graphics problems (it wouldn't start the laptop at all). I wanted to do a re-install. About half-way into the installation, where it says to choose which partition to install, I chose to erase the main drive and install it on that. It went through, then there was an error about the installation files being corrupt. It said something like this:
[Errno 5] Input/output error
This is often due to a faulty CD/DVD disk or drive, or a faulty hard disk. It may help to clean the CD/DVD, to burn the CD/DVD at a lower speed, to clean the CD/DVD drive lens (cleaning kits are often available from electronics suppliers), to check whether the hard disk is old and in need of replacement, or to move the system to a cooler environment
I restarted the laptop and kept trying it again. I formatted the USB multiple times and kept trying. No luck, I keep getting this error.
Then, this started happening: http://imgur.com/a/6EGmL
After the last image the mouse disappears and you can't do anything. I checked the md5sum of the ISO file and it's the same and there are no problems.
What do I do?