What happens if you remove the hard drive from Ubuntu and insert it into another computer?

Question

ubuntu

Such a question - Ubuntu is spinning on a certain computer, I remove the hard drive and insert
it into another computer, with a different motherboard, processor, etc.
Will Ubuntu run on other hardware?

Answer 1

with a high degree of probability - yes. well, the SATA port should be the same
situation with the change of architecture (x86 -> PowerPC) is not considered.

Answer 2

It will boot up smoothly (provided that the architecture and bitness of the processor match (in fact, a direct match is not needed, a 32-bit system will also start on a 64-bit system, if it is an x86-system and an x86-processor)).
In ubuntu, by default, the kernel is compiled with support for everything that is possible with modules, so it will simply load the modules under the hardware that it sees.
About the “disk number”, this is for you above, the dude just wrote some drunken nonsense, UUIDs have been used for a long time and you can safely stick and re-plug the hard drive as it comes to your mind.