problems upgrading to 64 bit from 32 bit ubuntu

[johann_2]

Hi All,

I just installed ubuntu 32 bit on a brand new computer that previously had no operating system on it with a boot cd. Well, I decided that I'd like to try the 64 bit build and made a boot disk for it but can't get it to boot from the disk. What's worse is that I tried my 32-bit boot disk to see if it would at least work and it's not working either. Is there some trick to upgrading to ubuntu from ubuntu that I'm unaware of?

Thanks for the help.

[oldfred]

Welcome to the forums.

Did you burn at slowest speed possible with CD? Was perhaps first 32bit borderline or perhaps you have a CD drive issue. Did you verify that MD55SUM was correct on ISO?

If a newer system I prefer to use USB flash drives as they are reuse-able and run a bit faster.

Also instructions for CD or USB
http://www.ubuntu.com/desktop/get-ubuntu/download
https://help.ubuntu.com/community/BurningIsoHowto
https://help.ubuntu.com/community/Installation/FromUSBStick
https://help.ubuntu.com/community/HowToMD5SUM