Programmer blog

I had a problem with running required programs upon system startup. I had to set up hdparm utility each time system boots up. I have 2 external HDD's connected and require setting their sleep time for 10 minutes each boot. So setting this up. The answer is found at Debian administration guides.  I'll provide it in the end of the article. Here is my decision based on that: So to set up a program to run on system boot. (In fact one of the system run-levels). You can add it's name. But a good practice will be to add an  sh script with execution of this utility an all the parameters. Sample script is: #! /bin/sh # /etc/init.d/blah # # Some things that run always touch /var/lock/blah # Carry out specific functions when asked to by the system case " $1 " in start ) echo "Starting script blah " echo "Could do more here" ;; stop ) echo "Stopping script blah" echo "Could do more here...

I want to sugest power saving changes after installing and handling creation of Time Capsule for Time Machine for my home network ( form my previous article ). I like when it's quiet. And like when disks does not spin, when it's not necessary to do so. So if you usually backup once in some hours and main time (Night and a part of the day) you do not touch a Time Machine... You would probably want to slow down your disks for that time. Fortunately Linux does it very well. And support of it is encoded into Linux core (kernel). You just would need a UI for this possibilities and a bit of knowledge and luck ;) Warning: Operations described farther may be potentially hazardous to your hardware. So now after you are warned ;) let's continue. I guess I will not touch those hazardous functions, but you may, typing wrong letters to this command in Linux shell... So be careful. Better read manuals for farther commands and so on... Anyway what we need is a UI. And...