alt Hacker NewsSerious question with 1GB L3 isn't it theoretically possible to boot a full Linux without ram?
Edit: dug in it, no, because cache isn't addressable and it's directly managed by the cpu.
Replies
floxy • today at 9:05 PM
I used to use a full Slackware Linux distribution with X-Windows on a 486 clone with 4 Megabytes of RAM.
Intel has a cache-as-ram (CAR) mode / Non-Eviction Mode, which is what you wanted but it is only available before DRAM is brought up via core initialization. Not sure about AMD.