Questions about: debugging

I just recently upgraded from 10. 04 to 11. 04 and gdb won't allow me to attach to processes anymore I get the error Attaching to process 10144 Could not attach to process
it does not make any sense when I am trying to sudo service nginx restart and it said nginx: the configuration file /etc/nginx/nginx. conf syntax is oknginx: configuration file /etc/nginx/nginx. conf test is successful its keeping failing
All of the following information (and quite a lot more useful Upstart help) is from The Upstart Cookbook. Section 18 covers debugging. http://upstart
I'm a complete Ubuntu and even Linux newbie. I'm learning here, so I'm grateful for any info to help me learn more about this. I have a Dell Dimension 2400 with a Pentium 4 and 1GB of RAM
Answer #: 1 The most important information you can give is what you’ve done, what you expected to happen, and what you observe has happened. This question is a particularly fine example of a hardware-detection problem with a USB device. Other example