SU/program execution permission problems

darin3200 · 08-17-2005, 05:12 PM

Hi,
I'm having some troubles. I compiled a C program and didn't get any errors. I go to run the program and get this

Code:

darinf@localhost c $ ./program
-bash: ./program: Permission denied

Here is 'ls -l' output

Code:

-rwxrwxrwx  1 darinf users 13641 Aug 17 16:34 program

I also ran

Code:

chmod u+x program

and still nothing. I also go to su to root and I can't, I type the password and get "Permission denied" although I can use the same password to log in as root, just not su to root. And when root I still get the same errors when running the program.

Any help is greatly appreciated

Thanks,
Darin

SlackerLX · 08-18-2005, 09:52 AM

Try to set root password in more traditional UNIX fashion,
you can set the root password by typing
#sudo passwd root.

This will allow you to use su or login as root on the console.

If you need a shell with root privileges, run
#sudo -s

darin3200 · 08-18-2005, 09:32 PM

Yeah, that should work, but I'm still wondering what happened and why all ther permissions are messed

SlackerLX · 08-19-2005, 05:11 AM

But usually when I run externally GCC built program as user, Linux requests permissions.
chmod -x

darin3200 · 08-19-2005, 04:32 PM

But wouldn't chmod -x make the program unexecutable?

SlackerLX · 08-20-2005, 01:00 AM

Sorry, I mistyped
chmod +x

darin3200 · 08-20-2005, 11:24 AM

I didn't think it was necessary to make a compiled C prog. executable, but i tried and it still didn't work. Also, some interesting shell scripting problems are coming up, for instance, after creating a hello world script here is what happens

Code:

darinf@localhost c $ chmod u+x test
darinf@localhost c $ ./test
-bash: ./test: /bin/bash: bad interpreter: Permission denied
darinf@localhost c $ /bin/bash test
Hello world

I don't know if this is related, but still interesting

SlackerLX · 08-20-2005, 11:35 AM

Do you think to check it again with GCC will make any sense?
Just yesterday one our member sent me his program compiled with g++ and I had the same thing, but typing
#su
#chmod +x lesson
solved the bugger

darin3200 · 08-20-2005, 10:03 PM

Fixed one of the problems! It turns out the programs are on a seperate harddrive, a hardrive that doesn't have exectuable permisisons, everything works fine in /

But su still doesn't work :|