su: cannot set user id: Resource temporarily unavailable

Hi there,
I’m getting following error when I use root to “su – oracle” in Linux. Finally, I found the solution as shown below 🙂

# uname -srm
Linux 2.6.18-308.11.1.el5 x86_64

# su – oracle
su: cannot set user id: Resource temporarily unavailable

# ps -eLF | grep “^oracle” | wc -l
2068

Increase value “nproc soft limit” for oracle:
#– /etc/security/limits.conf –#

#oracle soft nproc 2047
oracle soft nproc 4095

# su – oracle
$ whoami
oracle

Raspberry Pi GPIO

Found a useful youtube video talks about how raspberry talks to hardware.
Like how to light an LED (part 1) and how to get input from close circuit switch.

Thanks to TheRaspberryPiGuy
Part 1

Part 2

Raspberry Pi Application

This computer have many potential.

Here is some examples :-

Personal Computer – All you need is :

And old monitor or an TV with html input
VGA to html connector
keyboard/mouse, usb, or with PS2 to usb converter
And some hard work to set it up.
Here is how :-

http://www.mdpub.com/pi/allinone/index.html

More other application :-

http://www.ibtimes.com/raspberry-pi-rising-7-incredible-projects-people-are-making-single-board-computer-video-1193315

Some application uses dedicated hardware to interect with the raspberry.. I will update once I’ve figured out how.