I'm a bit new to Ubuntu, having installed 14.10 a couple of weeks ago in a dual boot on my 6 year-old HP notebook previously running just Vista. Ubuntu was an absolutely amazing breath of fresh air, so much faster than Vista in every way and more functional into the bargain! I was therefore rather sad at the beginning of this week when Ubuntu just stopped booting, instead flashing up an error message about a
buffer I/O error on device sda5, logical block
I am no computer whiz but on my friend's advice booted Ubuntu from the live USB stick I installed it with and then downloaded and ran boot repair. It said it had worked successfully however the problem remains.
Can anyone tell me what I might have done to Ubuntu or to my laptop to make it so unhappy and how I can fix it? As I say all that happened was I turned it off one night working perfectly fine and the next morning suddenly I have a
buffer I/O error.
Any help or info would be hugely appreciated.