问题
docker is gigving me a hard time currently. I followed these instructions in order to install docker on my virtual server running Ubuntu 14.04 hosted by strato.de.
wget -qO- https://get.docker.com/ | sh
Executing this line runs me directly into this error message:
modprobe: ERROR: ../libkmod/libkmod.c:507 kmod_lookup_alias_from_builtin_file() could not open builtin file '/lib/modules/3.13.0-042stab092.3/modules.builtin.bin'modprobe: FATAL: Module aufs not found.
Warning: current kernel is not supported by the linux-image-extra-virtual
package. We have no AUFS support. Consider installing the packages linux-image-virtual kernel and linux-image-extra-virtual for AUFS support.
After the installation was done, I installed the two mentioned packages. Now my problem is that I can't get docker to run.
service docker start
results in:
start: Job failed to start
docker -d
results in
INFO[0000] +job serveapi(unix:///var/run/docker.sock)
INFO[0000] Listening for HTTP on unix (/var/run/docker.sock)
ERRO[0000] 'overlay' not found as a supported filesystem on this host. Please ensure kernel is new enough and has overlay support loaded.
INFO[0000] +job init_networkdriver()
WARN[0000] Running modprobe bridge nf_nat failed with message: , error: exit status 1
package not installed
INFO[0000] -job init_networkdriver() = ERR (1)
FATA[0000] Shutting down daemon due to errors: package not installed
and
docker run hello-world
results in
FATA[0000] Post http:///var/run/docker.sock/v1.18/containers/create: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?
Does anybody have a clue about what dependencies could be missing? What else could have gone wrong? Are there any logs which docker provides?
I'm searching back and forth for a solution, but couldn't find one.
Just to mention this is a fresh Ubuntu 14.04 setup. I didn't install any other services except for java. And the reason why I need docker is for using the dockerimage of sharelatex.
I'm thankful for any help!
回答1:
Here's what I tried/found out, hoping that it will save you some time or even help you solve it.
Docker's download script is trying to identify the kernel through uname -r to be able to install the right kernel extras for your host.
I suspect two problems:
- My (united-hoster.de) and probably your provider use customized kernel images (eg.
3.13.0-042stab108.2) for virtual hosts. Since the script is explicitly looking for-genericin the name, the lookup fails. - While the naming problem would be easy to fix, I wasn't able to install the
generickernel extras with my hoster's custom kernel. It seems like using a upgrading the kernel does not work either, since it would affect all users/vHosts on the same physical machine. This is because the kernel is shared (stated in some support ticket).
To get around that ..
- I skipped it, hoping that Docker would work without AUFS support, but it didn't.
- I tried to force Docker to use devicemapper instead, but to no avail.
I see two options: get a dedicated host so you can mess with kernels and filesystems or a least let the docker installer do it or install the binaries manually.
回答2:
You need to start docker
sudo start docker
and then
sudo docker run hello-world
I faced same problem on ubuntu 14.04, solved.
refer comment of Nino-K https://github.com/docker-library/hello-world/issues/3
来源：https://stackoverflow.com/questions/30132706/docker-service-does-not-start