topic Not able to create mount point in Databricks in Data Engineering

Not able to create mount point in Databricks

vishalyennam — Wed, 09 Jul 2025 15:48:42 GMT

Hi Everyone,

I am trying to create mount point in Azure Databricks, but mount point creation is failing with below error message.

java.lang.UnsupportedOperationException: Managing DBFS mounts is not supported on this type of compute resource. Use Unity Catalog Volumes or External Locations instead.

val containerName = "input"
val storageAccountName = "sttestblobdata001"
val sas = "..."
val url = "wasbs://" + containerName + "@" + storageAccountName + ".blob.core.windows.net/"
val config = "fs.azure.sas." + containerName + "." + storageAccountName + ".blob.core.windows.net"

dbutils.fs.mount(
source = url,
mountPoint = "/mnt/input",
extraConfigs = Map(config -> sas))

To troubleshoot, I downgraded the cluster to Databricks Runtime 15.4 LTS and also tried 16.4, but I still get the same error.

Any guidance would be highly appreciated. Thanks in advance!

Cluster

Code Error:-

#AzureDatabricks #DBFS #UnityCatalog #MountPoint #AzureStorage #DataEngineering #DatabricksHelp #BlobStorage

Re: Not able to create mount point in Databricks

szymon_dybczak — Wed, 09 Jul 2025 16:09:26 GMT

Hi @vishalyennam ,

Check your compute access mode. Compute resources configured with the dedicated access mode have full access to DBFS, including all files in the DBFS root and mounted data.

Anyway, DBFS is depracted access pattern. You should use Unity Catalog way instead.

Re: Not able to create mount point in Databricks

vishalyennam — Wed, 09 Jul 2025 18:36:42 GMT

Hi @szymon_dybczak
can you please give me the steps how to see compute access mode and what access should i give to the compute

Re: Not able to create mount point in Databricks

nayan_wylde — Wed, 09 Jul 2025 18:49:17 GMT

You'll need to edit the cluster's configuration. This involves navigating to the compute details UI, finding the "Access mode" setting, and selecting "No Isolation Shared". With dedicated and standard mode you will not be able to create mount points

Re: Not able to create mount point in Databricks

szymon_dybczak — Wed, 09 Jul 2025 19:01:30 GMT

Hi @vishalyennam ,

Sure, go to Compute -> Select your cluster -> Find Access mode -> Select Dedicated