I have a device with an old version of Debian, Debian 6 Squeeze. I am trying to upgrade it to any newer version but I get messages, such as:
Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze/Release.gpg Could not resolve 'ftp.us.debian.org'
This is probably because Squeeze is no longer supported at the ftp.us.debian.org address. I am wondering if there is some other address I could use that would allow me to upgrade to Wheezy, after which I should be able to use the normal root. If not is there some kind of work around.
Unfortunately this device has no connections, such as USB or CD drive to install a newer version of Debian through, so whatever I do must be through the internet. I'm sure I once came across a similar problem with an old version of Ubuntu and there was an address for legacy updates.