I can't run application/x-executable files in Ubuntu 14.04

Question

I'm having problems with some application/x-executable files. They simply don't open. I've tried to click them and I've tried to open them in Terminal, but nothing happens. On Ubuntu 12.04, both of the programs work, just by double-clicking them.

The programs are:

• fez (setup of Fez game; Humble Bundle edition)
• supermeatboy (setup of the game; Humble Bundle edition)
• fusion (executable file of the emulator Kega Fusion)

I've already installed the 32-bit libs (Fusion needs it).

I've tried this in Terminal:

./fez
bash: ./fez: No such file or directory

Answer 1

I had an equivalent issue with an executable file called myExecutable. To work, you need the both following conditions :

1. The file permission / right must be set as executable :

   • One way is to run the command : chmod +x myExecutable
   • Another way is to do it graphicaly with right clic on the file, property, permission
   • You can check it by looking at x with : ls -l

2. The mounted file system / partition must allow to run an executable.

   Eg. the file system must be mounted with exec parameter instead of noexec. Look at the file /etc/fstab or check the mounted partition with mount command

Then, you will be able to run the file :

• With double clic on it
• Or in running in a console : ./myExecutable