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I tried to used these commands at the root terminal:

sudo sed -i -e 's/archive.ubuntu.com/old-releases.ubuntu.com/g' /etc/apt/sources.list
sudo apt-get update && sudo apt-get dist-upgrade

The result is it could not find.

Then using the add/ remove GUI, I also could not load the Thunderbird to install.

I have very little Linux command text knowledge. How can I get and install Thunderbird into my old Ubuntu V9.xx?

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closed as not a real question by Jo-Erlend Schinstad, Anwar Shah, RolandiXor, jokerdino, fossfreedom Aug 1 '12 at 8:51

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

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please use paste.ubuntu.com and post a link to the output of cat /etc/apt/sources.list as well as sudo apt-get update && sudo apt-get dist-upgrade - thanks. Which version of v9 - 9.04 or 9.10? Are you connected to the internet or not? Just for interest - why have you not upgraded to a supported version of ubuntu such as 10.04? –  fossfreedom Jul 27 '12 at 9:19
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Ubuntu 9.x is unsupported. Please do not use it unless you really know what you're doing. There will be unresolved security issues which can enable remote attackers to abuse your computer. Please upgrade to at least 10.04LTS. –  Jo-Erlend Schinstad Jul 27 '12 at 10:17
    
@Jo-ErlendSchinstad While it's true that users should upgrade from Ubuntu 9.x, and you're right that using those releases is dangerous, we do currently support that here and this question should not be closed as off-topic for being about an EoL Ubuntu release. (See the community consensus as expressed by overwhelming votes in favor of allowing EoL questions here and here.) –  Eliah Kagan Jul 27 '12 at 17:20
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1 Answer 1

You should try using the official thunderbird version provided by Mozilla, instead of the version in official Ubuntu repository provided by Canonical. At least on Ubuntu 9.04 and 9.10, the version in Ubuntu is not very good, and the upstream version is much better.

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