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64-bit Ubuntu seems to contain the 32-bit version as well

UserPost

2:58 pm
November 4, 2017


Williamhawk

Senior Member

posts 59

Hi,

I burned 32-bit Ubuntu version 16 to a USB and successfully ran it on a 64-bit machine without installing.

This is to be expected as 32 bit Intel code will run on a 64 bit Intel machine as long as you stay in protected mode or go into legacy mode.

I checked the files burned on the USB and saw that under the dists/xenial/main and dists/xenial/restricted folders there is a binary-i386 folder.

This makes sense.

Then, I burned the 64-bit Ubuntu version 16 to a USB. 

I checked the files burned on the USB and saw that under the dists/xenial/main and dists/xenial/restricted folders there is a binary-amd64 folder and a binary-i386 folder.

Apparently, the 64-bit version has both the 64-bit code and the 32-bit code.

Why? 

What happens if you take the 64-bit version and try to run it on a 32 bit system?

Will the bootloader load the 32-bit version and successfully run the OS?

 

I didn't find the right solution from the internet.
References: 

https://www.computerforum.com/threads/64-bit-ubuntu-seems-to-contain-the-32-bit-version-as-well.243118/

 

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