System requirements | Ubuntu
https://ubuntu.com/core/docs/system-requirementsUbuntu Core has been designed to have low system requirements and to run on a wide range of hardware, from embedded IoT devices to industrial computing. Minimum requirements are flexible and are entirely dependent on device configuration, but they’re generally contrained to the following: core18: 256MB RAM, 256MB storage.
Minimal - Ubuntu Wiki
wiki.ubuntu.com › MinimalJan 21, 2020 · Minimal Ubuntu is a set of Ubuntu images designed for automated deployment at scale and made available across a range of cloud substrates. They use the optimised kernels and optimised boot process on their target compute substrate.