This is how I do it- YMMV:
Using the existing sources, install nano from a terminal (note, I couldn't install nano when the new sources file was added- this could be because not all of the sources were properly fixed at Ubuntu...). I use a windows box and use putty to ssh into the core, else you can (IIRC) Alt+F4 (or any of the F's except for F7 & F8):
So, get a terminal, log into the core and either run sudo command before all of the below, or simply type "su" then your password at the prompt:
apt-get install nano
Accept that it's going to install the file and take up whatever space it takes.
Next, make a backup of your current sources file- actually you're just renaming the current file to *.list.OLD, but it works as a backup:
mv /etc/apt/sources.list /etc/apt/sources.list.OLD
Next copy in the new sources list from the above source into the new sources.list file:
Nano will open and allow you type in the new sources. If you do it on putty from a windows box, I've found that can simply right click the mouse and it acts as paste. The first time I did this I didn't have the window open large enough so the end of the source lines ended with "$" rather than the rest of the link. Just make sure that what you copy from above is the same as what get pasted into sources.list. (Another option maybe to create the sources.list file somewhere else (e.g. from notepad) and get it to your core. I would just use windows exporer, go to \\192.168.80.1 (or whatever you have as the ip address of your core), log in with your credentials as requested and copy the file to some directory on your core. From there, you can get to a terminal, login as root (su or sudo) and move the file to the correct location ("mv sources.list /etc/apt/")
Here's the list again (I copied directly from mine because I'm can't find the pinned post):
deb file:/usr/pluto/deb-cache/ ./
deb http://old-releases.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://old-releases.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://deb.linuxmce.org/ubuntu/ intrepid beta2
deb http://debian.slimdevices.com/ stable main
deb http://packages.medibuntu.org/ intrepid free non-free
deb http://deb.linuxmce.org/ubuntu/ 20dev_ubuntu main
deb http://deb.linuxmce.org/ubuntu/ replacements_debian main
Then cntrl + x to exit nano- it will prompt you to save the file.
There have been a number of posts about what to run as for updating and upgrading. This is what I do and prepare to get twapted.
I run apt-get update twice- doesn't seem like the first time all sources are property searched for new files. And I agree to install all of the packages when asked.
Please note that you have to do this on all of your MDs- the process is identical including install nano at the beginning before changing the sources file. To do this, you need to know your MD's device numbers, I either use the web admin to look at the media directors, or from the terminal pull up the list of devices:
The numbers listed are the numbers you would use after moon.
For example I had "100", "51" and "74"
To log into the media director in my family room (just by chance I happen to know it is 100) I just ssh into it:
At the terminal then, just go though the above steps starting with "apt-get install nano"
After getting the packages (apt-get upgrade, apt-get dist-upgrade and apt-get update), exit from that MD to go back to the core to ssh into the next MD. This is not a necessary step, but I don't like the idea of hoping from core -> Media Director -> Media Director -> Media Director to update the last one. Would rather go Core -> MD1, exit, then Core -> MD2.
For the sake of clarity (and risk too much repetition) I would then log into the next MD:
This is how I do it...