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I have currently Ubuntu 15.10 installed on my system in dual-boot mode alongside Windows 10. As I need to run an older version of OpenFOAM software on my machine, I need to replace the 15.10 with 13.04 version as that(and 12.04, 12.10) are the only versions of Ubuntu supported by this older OpenFOAM version.

So, how do I go about installing Ubuntu 13.10, replacing the 15.10 while leaving the Windows partition alone? What option do I have to choose during installation from USB drive, that will do that?

going_crazy
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1 Answers1

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You can go ahead and start installing Ubuntu 13.04 rather than downgrading as mentioned in this thread. It will be less efforts to install 13.04 and more cleaner approach. Moreover you already have the disk partitions on which you need to install Ubuntu. I would check with the release notes of that software(OpenFOAM) -in general the software/tools that i am using are all supporting LTS release(Ubuntu Desktop 14.04.3 LTS). It's better to be at 14.04.3 LTS rather than 13.04

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Ashu
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