Lelouch Lamperouge's questions

When I tried to restart the ssh server on my ubuntu box, I got

me@me-one:~$ service ssh restart
restart: Rejected send message, 1 matched rules; type="method_call", sender=":1.63" (uid=1000 pid=3354 comm="restart ssh ") interface="com.ubuntu.Upstart0_6.Job" member="Restart" error name="(unset)" requested_reply="0" destination="com.ubuntu.Upstart" (uid=0 pid=1 comm="/sbin/init")

I realized that I hadn't sudo-ed

me@me-one:~$ sudo service ssh restart
ssh start/running, process 3386

Why didn't the first attempt throw an error like Permission denied or something similar. Am I overriding the error when running as root and implicitly ignoring the warning/error? Or is it just bad programming by the openssh developers?

How can I add a notification of some sort (like playing a .wav file or creating a pop-up on the status bar) when a process finishes.

For example, I am compiling a program that takes a couple of hours to finish. I would like to hear/see some sort of message when it completes compiling. Is there a tool for doing this (like tying an alarm program to the pid of a process) or something like that?

When I attempted to copy a file (of size, ) over the network using scp I get a error <file> stalled Why does this happen? How do I resolve it?

Im on ubuntu 10.04. with kernel version 2.6.32-34. I need to downgrade the kernel version to 2.6.32.25. How do I do this?

uname -a

.

Linux supermace 2.6.32-34-generic-pae #77-Ubuntu SMP Tue Sep 13 21:16:18 UTC 2011 i686 GNU/Linux

Not a COM32R image
boot

is a message that the console infinitely keeps spitting out when I try to install Ubuntu 10.04 from a USB. I created the USB using the StartupDiskCreator in 11.04.

What is the reason for this behavior? What do I do to set it right?

I have followed the steps perfectly, as enlisted in the Ubuntu Install from USB page.

What is the process gvfsd-dav.
The best I could find on my system monitor was that it is somehow associated to nautilus. I closed all the nautilus instances and still there are 2 instances of gvfsd-dav that are completely occupying 2 out of 4 CPUs.