是否可以在(特权)docker 容器内安装覆盖文件系统?至少我的直觉方法在容器外运行良好,但失败了:
> mkdir /tmp/{up,low,work,merged}
> mount -t overlay overlay -o lowerdir=/tmp/low/,upperdir=/tmp/up/,workdir=/tmp/work/ /tmp/merged/
mount: /tmp/merged: wrong fs type, bad option, bad superblock on overlay, missing codepage or helper program, or other error.
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