linux - 为什么 docker 不能运行早于 3.10 的内核？

Question

Docker 通常不能在早于 3.10 的 Linux 内核上运行。 (在某些情况下，它也可以在 3.8 内核中运行)。

旧内核缺少新内核的哪些功能会阻止 docker 在其中运行？

Answer 1

A 3.10 Linux kernel is the minimum requirement for Docker. Kernels older than 3.10 lack some of the features required to run Docker containers. These older versions are known to have bugs which cause data loss and frequently panic under certain conditions.

The latest minor version (3.x.y) of the 3.10 (or a newer maintained version) Linux kernel is recommended. Keeping the kernel up to date with the latest minor version will ensure critical kernel bugs get fixed.

取自:https://docs.docker.com/engine/installation/binaries