Help me to customize an ubuntu live cd image please

I've already had a custom image running for quite some time, but on certain things I'm lost. I don't know even where to start to be honest.
Mainly I want to customize the UI so it's default instead of having to go through and set everything every time I boot from it. If anyone could help I would be very grateful.
What I'm looking to customize are the following:

Appearance -> Industrial controls, Ubuntu-Mono-Light icons.

Where you click on Network connections and edit, and you can uncheck "connect automatically".

Customize firefox, remove all default bookmarks, as well as edit preferences. Mainly, security and advanced sections I remove a lot of options.

System -> Preferences -> Power Management, I'd like the default brightness set to 67% instead of 100%.

File Browser -> Edit -> Preferences; I change the defaults under behaviour and media.

I haven't found a whole lot yet in google that's why I came here for help. I already have a customized ubuntu, but those things above elude me, since I know it has to be done from the commandline.

Other minor things would include having noscript installed by default, sound preferences altered, and the time zone under Time and Date altered.

Could anyone help please? Thanks if you can.

 

Insert live cd or live usb stick
Insert empty usb stick .. and do a permanent install on it.
Can do even a multi boot on a simple flash drive .. or if the notebook support it on sd card too.

 

You totally missed my point. I run from a live cd, I already have a custom image. I do not wish to install it to my hard drive, but to continue to run from a live cd (or USB thumb drive). There are some customizations that I would like to make, that I already explained, that I am not sure how to do. I think they all have to be done from the commandline.

 

What you want is 'Persistent Mode'. Download Lili usb creator for windows. Also download the Ubuntu of your choice. The third option in Lili is Persistent mode. You will need a Flash drive/usb to run Persistent mode. You can have up to 4 GB of storage for files/settings for the Live USB.

http://www.linuxliveusb.com/

 

+1 for LiLi

 

@Roger:
Seems to me you're speaking greek.

I think what you want to do is possible with remastersys. I have never used it but I know that the creator of wattOS uses it to build his flavour of Ubuntu.

Does anybody else think it's strange to assume in a Linux forum that one would buy, install and run Windows (including the acceptance of the restrictive EULA) just to create a Live CD of a free (as in speech) OS?

 

Not me. I run both as a matter of necessity. Once in a while, I'll bork something hard inside the linux box that forces me to use the windows variant of unetbootin to rebuild a liveusb of the current Mint. (Or at least it's easier to clean install than fix sometimes) It's somewhat difficult to find a notebook for retail sale that doesn't come preloaded with Windows, so you have to start somewhere, especially on a Linux forum nested inside a notebook forum.

Of course, I end up using usb-creator to make my persistent LiveUSBs, so I get where you're coming from on that front.

 

I also have a backup system, but that doesn't have to be Windows. My primary backup is mainly a copy of my productive system on a different partition.

Yes, it's hard, but it's not impossible. I bought my Dell laptop without Windows and currently I'm buying a netbook without it.
I'd like to say that I'll never buy a computer with a preloaded non-free OS again, but of course I can't say what the future will bring. Still at least I'll try.

 

@Roger Lots (if not all) of what you want to do is explained here: https://help.ubuntu.com/community/LiveCDCustomization

Use gconf-editor to find the settings you want to change.

 

Thanks. That's the guide I used to build my custom image, but some of the things I want to do I'm pretty in the dark about. Looks like I'll have to delve into gconf. Thanks again.