Full backup of a single node

Elastic Stack Elasticsearch
4

Well I tried this, and I'm not having any luck. I've added:

path.repo: ["/media/backup/es"]

to /etc/elasticsearch/elasticsearch.yml. I then run this:

curl -XPUT 'http://localhost:9200/_snapshot/my_backup' -d '{
    "type": "fs",
    "settings": {
        "location": "/media/backup/es/my_backup",
        "compress": true
    }
}'

here's what I get:

{"error":"RepositoryException[[my_backup] failed to create repository]; nested: CreationException[Guice creation errors:\n\n1) Error injecting constructor, org.elasticsearch.common.blobstore.BlobStoreException: Failed to create directory at [/media/backup/es/my_backup]\n  at org.elasticsearch.repositories.fs.FsRepository.<init>(Unknown Source)\n  while locating org.elasticsearch.repositories.fs.FsRepository\n  while locating org.elasticsearch.repositories.Repository\n\n1 error]; nested: BlobStoreException[Failed to create directory at [/media/backup/es/my_backup]]; ","status":500}

and from my elasticsearch.log:

2015-07-23 19:29:20,335][WARN ][repositories             ] [Dionysus] failed to create repository [my_backup]
org.elasticsearch.repositories.RepositoryException: [my_backup] failed to create repository
        at org.elasticsearch.repositories.RepositoriesService.createRepositoryHolder(RepositoriesService.java:414)
        at org.elasticsearch.repositories.RepositoriesService.registerRepository(RepositoriesService.java:371)
        at org.elasticsearch.repositories.RepositoriesService.access$100(RepositoriesService.java:55)
        at org.elasticsearch.repositories.RepositoriesService$1.execute(RepositoriesService.java:110)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:374)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:188)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:158)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.common.inject.CreationException: Guice creation errors:

1) Error injecting constructor, org.elasticsearch.common.blobstore.BlobStoreException: Failed to create directory at [/media/backup/es/my_backup]
  at org.elasticsearch.repositories.fs.FsRepository.<init>(Unknown Source)
  while locating org.elasticsearch.repositories.fs.FsRepository
  while locating org.elasticsearch.repositories.Repository

1 error
        at org.elasticsearch.common.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:344)
        at org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(InjectorBuilder.java:178)
        at org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder.java:110)
        at org.elasticsearch.common.inject.InjectorImpl.createChildInjector(InjectorImpl.java:131)
        at org.elasticsearch.common.inject.ModulesBuilder.createChildInjector(ModulesBuilder.java:69)
        at org.elasticsearch.repositories.RepositoriesService.createRepositoryHolder(RepositoriesService.java:407)
        ... 9 more
Caused by: org.elasticsearch.common.blobstore.BlobStoreException: Failed to create directory at [/media/backup/es/my_backup]
        at org.elasticsearch.common.blobstore.fs.FsBlobStore.<init>(FsBlobStore.java:49)
        at org.elasticsearch.repositories.fs.FsRepository.<init>(FsRepository.java:88)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        at org.elasticsearch.common.inject.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:54)
        at org.elasticsearch.common.inject.ConstructorInjector.construct(ConstructorInjector.java:86)
        at org.elasticsearch.common.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:98)
        at org.elasticsearch.common.inject.FactoryProxy.get(FactoryProxy.java:52)
        at org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:45)
        at org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:837)
        at org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:42)
        at org.elasticsearch.common.inject.Scopes$1$1.get(Scopes.java:57)
        at org.elasticsearch.common.inject.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:45)
        at org.elasticsearch.common.inject.InjectorBuilder$1.call(InjectorBuilder.java:200)
        at org.elasticsearch.common.inject.InjectorBuilder$1.call(InjectorBuilder.java:193)
        at org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:830)
        at org.elasticsearch.common.inject.InjectorBuilder.loadEagerSingletons(InjectorBuilder.java:193)
        at org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(InjectorBuilder.java:175)

I can verify that ES is up and working...in fact I've completely blown out /var/lib/elasticsearch/elasticsearch and started again

[19:44:48 dev:~$] curl 'http://localhost:9200'
{
  "status" : 200,
  "name" : "Suicide",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "1.7.0",
    "build_hash" : "929b9739cae115e73c346cb5f9a6f24ba735a743",
    "build_timestamp" : "2015-07-16T14:31:07Z",
    "build_snapshot" : false,
    "lucene_version" : "4.10.4"
  },
  "tagline" : "You Know, for Search"
}

Not sure where to go from here. Thank you.