Docker.service 无法启动，Raspbian 上的错误 "failed to mount overlay: no such device"

Question

我最近在安装 raspbian 时遇到了问题。可能一些升级搞砸了我的 SSD 启动。解决后，我注意到 docker.service 拒绝启动。在服务的日志上它说

Apr 23 19:24:08 raspberrypi systemd[1]: Starting Docker Application Container Engine...
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.702984211+01:00" level=info msg="Starting up"
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.706657044+01:00" level=info msg="parsed scheme: \"unix\"" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.707181266+01:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.707520970+01:00" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock 0  <
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.707855840+01:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.711273840+01:00" level=info msg="parsed scheme: \"unix\"" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.711450507+01:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.711545396+01:00" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock 0  <
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.711626674+01:00" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.721460748+01:00" level=error msg="failed to mount overlay: no such device" storage-driver=overlay2
Apr 23 19:24:08 raspberrypi dockerd[1629]: time="2020-04-23T19:24:08.721569822+01:00" level=error msg="[graphdriver] prior storage driver overlay2 failed: driver not supported"
Apr 23 19:24:08 raspberrypi dockerd[1629]: failed to start daemon: error initializing graphdriver: driver not supported
Apr 23 19:24:08 raspberrypi systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE
Apr 23 19:24:08 raspberrypi systemd[1]: docker.service: Failed with result 'exit-code'.
Apr 23 19:24:08 raspberrypi systemd[1]: Failed to start Docker Application Container Engine.

我无法在网上找到任何相关的东西。理想情况下，我想避免丢失我的 docker 图像

编辑:内核版本是 4.19.114-v7l+，但是/lib/module 下没有为此内核安装任何模块。运行“sudo apt install --reinstall raspberrypi-bootloader raspberrypi-kernel”修复它。

Answer 1

如果您有旧内核，请更新内核。
检查/lib/module 下是否为内核安装了模块。

sudo apt install --reinstall raspberrypi-bootloader raspberrypi-kernel

应该修复它。
我在 上的 VM 中遇到了同样的问题Xen主机 ，并通过在 VM 中安装 pygrub 及其自己的内核来修复它:https://stackoverflow.com/a/71763164/1069083