Ubuntu installer retrieve this error while copying files during ubuntu 14.04.1 LTS installation in my laptop:
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 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 have already make some checks but can't find what is causing this error:
- Check MD5SUM (correct)
- Try with two different USB installer, UUI and rufus.
- Try width two different USB devices, both of them 16GB.
- Try with a DVD
- Try the option Check disck for defects (no errors found)
- Memtest86+ (no errors)
What can be causing this error?