On 12/23/2011 06:52 AM, amjjawad HOOHAA wrote: > I have Lubuntu 12.04 installed and it's up and running. I have done all the > updates and upgrades ( > http://ubuntuforums.org/showpost.php?p=11559293&postcount=23) and now, I > want to use "zsync" that I already installed. *From my understanding to all > this, I just need to do this*:
> zsync > http://cdimage.ubuntu.com/lubuntu/daily-live/20111222/precise-desktop-i386.iso.zsync You can't zsync already installed packages, you zsync an ISO image file. This updates it to a newer verson of that ISO image, without re-downloading the parts that have not changed. zsync is used for updating an ISO image file, one you can then burn to CD, etc. It is *not* a way to update an installed system. > ... "zsync" will NOT update the installed system but will update the > previously downloaded iso so that you'll get the LATEST Daily Image > and then you just need to burn a CD and Install all over again, > right? Right. Remember, this is for testing, which includes testing of installation. > Now, another doubt: What's the point from all the above if I do: > > sudo apt-get upgrade This first one should be "update" not "upgrade", I think. > sudo apt-get dist-upgrade That updates your existing, already installed, machine. It does not test the installer, or the installer slideshow, for example, which may have been changed between the time you first installed Lubuntu and the time you do the update. > Isn't that enough? No. They do two *very* different things: (1) An end user, wanting to keep their machine updated, can do sudo apt-get update && sudo apt-get upgrade to update their already-installed Lubuntu machine. (2) ISO testers, who will retest installation of Lubuntu from the ISO image on a variety of machines, and using a variety of different installation options, need an updated ISO to do that kind of testing with. Using zsync can help such testers them obtain an updated ISO image without wasting Internet bandwidth. Jonathan _______________________________________________ Mailing list: https://launchpad.net/~lubuntu-desktop Post to : lubuntu-desktop@lists.launchpad.net Unsubscribe : https://launchpad.net/~lubuntu-desktop More help : https://help.launchpad.net/ListHelp
