I have a Mac Mini mid 2007 with Debian 10 32 bit running just fine... but there is almost nothing to really work on it... 32 bit, despite my efforts, it's a dead architecture. So it's just to install a 64 OS or upgrade this one right? Well... This Mac Mini got no optical drive (I will try tu put one but is not guarantee it will work), so I have to boot from USB. I have tried a lot of different OSs with both architectures and the systems that will boot are:
- Mac OS X Lion - works badly, will flood memory and stops in couple hours, besides, it's abandoned by Apple and everyone. But I keep it in a small partition, just in case.
- Windows 7 32 bits - works good, but it's abandoned by Microsoft. Not reliable, not using right now. It's half abandoned by the market.
- Debian 10 32 bits - works nice! It's almost totally abandoned by the market.
- Upgrade this Debian to 64 bits - but there is low documentation about, not sure if this one will work due to the age: https://wiki.debian.org/Migrate32To64Bit, http://www.ewan.cc/?q=node/90 Many people doubt will work 100% or if will even work.
- Try to make a custom bootable USB stick - no documentation for Debian, only for Ubuntu. But the start point is Ubuntu 32 bits that is not recognized either. There is a claim that is possible, but the optical media will be required. There is an old article in Ubuntu site and this one: Medium Article
- Try to install in a new partition using this installation - not sure if it possible, I might try to make a clone of this partition to try some experiments and not lose the only OS is working right here.