Ubuntu – How to downgrade from 64-bit to 32-bit


I have a 2gb chromebook with 64-bit ubuntu 12.04 and it runs extremly slow and often crashes so how to I downgrade it to 32-bit or is their another solution?

Best Answer

It is not possible to convert an existing installation between 32-bit and 64-bit while keeping installed software. You need to do a reinstall.

The reason behind this is that it's actually classed as a different CPU architecture. Despite the fact that the CPU can run either, and Linux distributions are starting to support multi-arch (and you can even run a 64-bit kernel with a 32-bit installation), you still need to choose one or the other for your base architecture and it's not something you can incrementally swap over on a working installation.

Note too that the assumption behind your question is false. If your computer is crashing on 64-bit it is almost certainly not because it is 64-bit. While there is always a possibility that a full reinstall (whether moving to different version/architecture or not) may solve a problem - particularly if you didn't have the problem when you first installed - it represents a last resort in troubleshooting.

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