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I've installed Ubuntu 12.04 LTS. Should I update it or leave it like that?

I ask, because the last time I had installed Ubuntu and updated it, I started facing errors like System Program Problem Detected and internal errors.

So, it is recommended to update it?

If yes, what is the safest method to do so? Is it by using Ubuntu's Update Manager or using the terminal. If by terminal, please tell me the commands to accomplish this.

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Updating is Highly advised , since newer version Fixes bugs, brings New Features , provides Stability. Upgrading Kernel provides better support for your hardware and performance too.

And Security updates are important to keep your Ubuntu secure.

One way : Use Update Manager to update your system .It will classify list updates under categories as Important Security Updates , Recommended Updates and Other Updates ( eg. PPA's)

Second way : through terminal

sudo apt-get update && sudo apt-get upgrade

This would be the best way to update your Ubuntu

Also if you want to upgrade your kernel , do it after the above process through

sudo apt-get dist-upgrade

Or combining all above ,as All-in-one command.

 sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade

You can see the Ubuntu security notices here listing fixed vulnerabilities through updates , resolved mostly through security and other updates.

example : Fixing bugs through updates.

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Has anyone update their distro with the above mentioned command? This one: sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade Just wondering if it is 100% safe or it sometimes causes errors and conflicts. – Elysium Nov 26 '15 at 11:37

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