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4MLinux vs Porteus: catalog facts
4MLinux	Porteus
Free Free to download.	Free Free to download, with optional donations.
Linux	Linux
Small footprint Combines rescue, multimedia and server roles	Image under 300 MB Runs portably from USB, CD or hard drive
Minimal website and documentation Small community compared with mainstream distributions	Module system differs from mainstream package management Parts of the website describe older desktop versions
Operating system	Operating system
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.