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I am rather new to using Linux OS. I would like to install new software to my newly installed Ubuntu OS. However, I am having trouble doing this. I get the following error while trying to download new software:

E: Type 'http://old-releases.ubuntu.com/ubuntu/' is not known on line 1 in source list /etc/apt/sources.list.d/ia32-libs-raring.list
E: The list of sources could not be read.
Cristiana Nicolae
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Vic
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  • http://old-releases.ubuntu.com/ubuntu/ is up but your Ubuntu can't access it. I think this is a internet connection problem. Maybe you have a wrong DNS server or it isn't configured. – SuB Dec 15 '16 at 11:47
  • What's the release version? 16.0 ? 14.04 ? – Liso Dec 15 '16 at 11:59

2 Answers2

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It appears your newly installed Ubuntu is not so newly installed. Probably the best thing to do is delete everything from /etc/apt/sources.list.d/ and then do apt update

Brendan Donegan
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It seems you have installed ia32-libs package that no longer present as of Ubuntu 12.04 (precise), instead do a regular install you follow this instruction from SO which suggest to do a tweak using 13.04 repositories.

However it's recommended that you remove ia32-libs-raring.list after install ia32-libs, I doubt you notice this part of answer:

PS: In this way, you can install ia32-libs. However, we add the source of 13.04 instead, so, there may be some unknown problem. After installing ia32-libs, I recommend you to remove the ia32-libs-raring.list in /etc/apt/sources.list.d, and do sudo apt-get update

Therefore, we'll remove that file:

sudo rm /etc/apt/sources.list.d/ia32-libs-raring.list
sudo apt-get update
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Liso
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