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A sample Ubuntu /etc/apt/source.list file will look like this:
Quote:
#deb cdrom:[Ubuntu 12.04 LTS _Lucid Lynx_ - Release i386 (20100429)]/ lucid main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://in.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
# deb-src http://in.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu lucid partner
What you need to do is, you have to edit source.list file in your Knoppix to get update or install from any of these repo. Not sure, but I have not see gpg key instruction in this file, the reason I can think of is the link mentioned are the trusted source and you perform gpg check especially when you are downloading from a source which you are not sure is authentic or not.
Sounds like a good way to break your Knoppix system. Why not install Ubuntu in the first place? Ubuntu has excellent accessibility features, which you can read about here: https://help.ubuntu.com/community/Accessibility
If there are one or two specific applications that you need newer versions of than what's in the Knoppix repos, then I recommend grabbing those apps straight from the "upstream" developer rather than trying to mix Ubuntu packages.
Inspired by Knoppix Adriene, I am trying to install it on my netbook. However, I don't want the knoppix repositories since most of them are outdated.
How do I add ubuntu or linux mint's repositories to Knoppix? I guess I need to install the gpg-key also for each repository, correct?
Thanks,
Balaji.
You don't Knoppix uses Debian packages and repos, which are NOT compatible with Ubuntu packages. Do not mix the two unless you want to see how fast you can screw up your system.
snowpine and craigevil are right, you shouldn't be using Ubuntu repo for Knoppix unless you are doing it for testing purpose (forget to mention in my first post)
A similar example will be using Fedora repo for RHEL. Fedora is rebuild or RHEL but both of them have got different repositories. I have mentioned the way you can do it but do it only if you are doing it for testing not on live system.
I had ubuntu installed on my laptop some time ago and I did have some problems with it.
Once in a while, shutdown doesn't work. Also, mouse doesn't respond sometimes though keyboard used to work. The only way to get around these are to switch off the laptop using the power button.
Because of the above problems, I replaced Ubuntu with Linux Mint. It worked fine. I haven't used Linux Mint for about 4 to 5 months. Last week I logged into it, tried to do an update, and got an error message about the repositories. It looks like the repositories were broken or Linux Mint now uses a different repository.
I have chosen Knoppix because of the following reasons.
1. Excellent hardware detection. Everything worked out of the box, including Compiz, though I am not a fan of compiz.
2. The live cd uses the LXDE environment and it was very fast. Unfortunately, I installed Knoppix on the netbook and I could see that it is not faster when compared to the live cd. I assume it must be the other way around, but this is the fact.
One thing I don't like is I don't get the actual versions of software. For ex, I would like to have firefox instead of iceweasal.
Now, still with a wavering mind, I am thinking of a rolling-release distro. Can some one suggest a better rolling-release distro?
I have tried Arch and PCLinuxOS and want to try something else.
If your only repository concern about Knoppix is that it doesn't have Firefox, you don't need to mix in the Ubuntu repo, you can get Firefox here: www.firefox.com
Firefox, Iceweasel, and Icecat are the same thing. Mozilla are rather strict about what changes you can make without changing the name (i.e. none). If you start Firefox, until you reconfigure it, it will go to the Mozilla homepage. Not so Iceweasel or Icecat. But they will all take the same plugins.
Are you sure that you actually need the latest versions of the programs in question? Do they really have features that you cannot do without? There is always going to be a trade-off between being up-to-date and being reliable. Knoppix goes for reliable, Ubuntu for up-to-date. Personally, I'd rather have reliable, but it depends on whether you're a user or a hobbyist.
As others have said, mixing repositories (unless your distro actually recommends it) is a quick way to get trouble. You install a new version of A and it brings in a new version of X. But you already have B, which only works with the old version of X, so it stops working. You can always install from source, but then it's up to you to sort out the dependencies; that's why we have distributions.
Iceweasel
Description: Web browser based on Firefox
Firefox is a redesign of the Mozilla browser component, similar to
Galeon, K-Meleon and Camino, but written using the XUL user interface
language and designed to be lightweight and cross-platform.
.
This browser is based on the Firefox source-code, with minor
modifications. Historically, this browser was previously known as
Firebird and Phoenix.
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Why not install Ubuntu in the first place? Ubuntu has excellent accessibility features, which you can read about here: 
