What is error 28 and how to avoid it

Using the command line tool perror you can find out, what the error 28 means.
> perror 28
Error code 28: No space left on device
If you get his error, you need to check all filesystems where MySQL operates. It may be single filesystem or as we recommend you can have datadir, tmpdir and log [...]

Steve Jobs’ 12 Rules of Success

 
Steve Jobs’ 12 Rules of Success
1. Do what you love to do. Find your true passion. Do what you love to do a make a difference! The only way to do great work is to love what you do.
2. Be different. Think different. “Better be a pirate than to join the navy.”
3. Do your best. [...]