I did a search of google for this problem, and found it solved a few times on you forums - but not in a fashion I can understand. I'm hoping you can explain how to solve it in some very basic terms.
1. I know -nothing- about linux. I am 'moderately technically familiar' with windows, and used to program, but that was like, 15+ years ago. Way back when.
2. I am on a Debian machine, that has some sort of 'looks like windows xp' thing installed. I did not install it. I'm not even sure who did. I'm just trying to get it to work for an elderly friend of mine.
When we go to update the package manager, I get the following message:
Could not download all repository indexes
The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct.
There is no public key available for the following key IDs:
8B48AD6246925553GPG error: http://mozilla.debian.net
squeeze-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 85A3D26506C4AE2AThere is no public key available for the following key IDs:
8B48AD6246925553Failed to fetch http://backports.debian.org/debian-back ... ts/Release
Unable to find expected entry deb/binary-i386/Packages in Meta-index file (malformed Release file?)
Failed to fetch http://mozilla.debian.net/dists/squeeze ... ackages.gz
404 Not Found
Some index files failed to download, they have been ignored, or old ones used instead.
I searched and searched the forums, and all I could get out of it was 'check out sources.list'. I tried to figure out what to do - I located the command prompt (called the terminal here) and typed: cat /etc/apt/sources.list
It then spit out:
# deb http://ftp.us.debian.org/debian/
squeeze main non-free contrib
squeeze/updates main non-free contrib
squeeze-backports main deb http://mozilla.debian.net/
I don't know enough about anything to do anything else. I literally know nothing about linux. Could anyone run me through, step by step, the newbie's guide to fixing this mess?