Aug 30, 2018  In this edition of Azure Tips and Tricks, you'll learn how to generate SSH public keys to log into a Linux VM with Cloud Shell and BASH on Windows. Jan 06, 2016  Generating a SSH key and use the result to log in to your Azure Linux VM is not that hard to accomplish. In the following article I want to go over the steps. Get PuTTYgen to generate your SSH key First we need to download another “PuTTY” tool called PuTTY Key Generator. Just download the PuTTYgen executable and start.

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Azure Public Ssh Key

This article describes some of the most common error codes and messages you may encounter when you create or manage virtual machines (VMs) in Azure.

Note

You can leave comments on this page for feedback or through Azure feedback with #azerrormessage tag.

Error Response Format

Azure VMs use the following JSON format for error response:

An error response always includes a status code and an error object. Each error object always contains an error code and a message. If the VM is created with a template, the error object also contains a details section that contains an inner level of error codes and message. Normally, the most inner level of error message is the root failure.

Ssh Host Keys

Common virtual machine management errors

Host Key Verification Failed Ssh

This section lists the common error messages you may encounter when managing VMs: free gladiator 2 vst download

Azure Ssh Host Key Generation Failed Server

Error Code	Error Message
AcquireDiskLeaseFailed	Failed to acquire lease while creating disk '{0}' using blob with URI {1}. Blob is already in use.
AllocationFailed	Allocation failed. Please try reducing the VM size or number of VMs, retry later, or try deploying to a different Availability Set or different Azure location.
AllocationFailed	The VM allocation failed due to an internal error. Please retry later or try deploying to a different location.
ArtifactNotFound	The VM extension with publisher '{0}' and type '{1}' could not be found in location '{2}'.
ArtifactNotFound	Extension with publisher '{0}', type '{1}', and type handler version '{2}' could not be found in the extension repository.
ArtifactVersionNotFound	No version found in the artifact repository that satisfies the requested version '{0}'.
ArtifactVersionNotFound	No version found in the artifact repository that satisfies the requested version '{0}' for VM extension with publisher '{1}' and type '{2}'.
AttachDiskWhileBeingDetached	Cannot attach data disk '{0}' to VM '{1}' because the disk is currently being detached. Please wait until the disk is completely detached and then try again.
BadRequest	Aligned' Availability Sets are not yet supported in this region.
BadRequest	Addition of a VM with managed disks to non-managed Availability Set or addition of a VM with blob based disks to managed Availability Set is not supported. Please create an Availability Set with 'managed' property set in order to add a VM with managed disks to it.
BadRequest	Managed Disks are not supported in this region.
BadRequest	Multiple VMExtensions per handler not supported for OS type '{0}'. VMExtension '{1}' with handler '{2}' already added or specified in input.
BadRequest	Operation '{0}' is not supported on Resource '{1}' with managed disks.
CertificateImproperlyFormatted	The secret's JSON representation retrieved from {0} has a data field which is not a properly formatted PFX file, or the password provided does not decode the PFX file correctly.
CertificateImproperlyFormatted	The data retrieved from {0} is not deserializable into JSON.
Conflict	Disk resizing is allowed only when creating a VM or when the VM is deallocated.
ConflictingUserInput	Disk '{0}' cannot be attached as the disk is already owned by VM '{1}'.
ConflictingUserInput	Source and destination resource groups are the same.
ConflictingUserInput	Source and destination storage accounts for disk {0} are different.
ContainerAlreadyOnLease	There is already a lease on the storage container holding the blob with URI {0}.
CrossSubscriptionMoveWithKeyVaultResources	The Move resources request contains KeyVault resources which are referenced by one or more {0}s in the request. This is not supported currently in Cross subscription Move. Please check the error details for the KeyVault resource Ids.
DiagnosticsOperationInternalError	An internal error occurred while processing diagnostics profile of VM {0}.
DiskBlobAlreadyInUseByAnotherDisk	Blob {0} is already in use by another disk belonging to VM '{1}'. You can examine the blob metadata for the disk reference information.
DiskBlobNotFound	Unable to find VHD blob with URI {0} for disk '{1}'.
DiskBlobNotFound	Unable to find VHD blob with URI {0}.
DiskEncryptionKeySecretMissingTags	{0} secret doesn't have the {1} tags. Please update the secret version, add the required tags and retry.
DiskEncryptionKeySecretUnwrapFailed	Unwrap of secret {0} value using key {1} failed.
DiskImageNotReady	Disk image {0} is in {1} state. Please retry when image is ready.
DiskPreparationError	One or more errors occurred while preparing VM disks. See disk instance view for details.
DiskProcessingError	Disk processing halted as the VM has other disks in failed disks.
ImageBlobNotFound	Unable to find VHD blob with URI {0} for disk '{1}'.
ImageBlobNotFound	Unable to find VHD blob with URI {0}.
IncorrectDiskBlobType	Disk blobs can only be of type page blob. Blob {0} for disk '{1}' is of type block blob.
IncorrectDiskBlobType	Disk blobs can only be of type page blob. Blob {0} is of type '{1}'.
IncorrectImageBlobType	Disk blobs can only be of type page blob. Blob {0} for disk '{1}' is of type block blob.
IncorrectImageBlobType	Disk blobs can only be of type page blob. Blob {0} is of type '{1}'.
InternalOperationError	Could not resolve storage account {0}. Please ensure it was created through the Storage Resource Provider in the same location as the compute resource.
InternalOperationError	{0} goal seeking tasks failed.
InternalOperationError	Error occurred in validating the network profile of VM '{0}'.
InvalidAccountType	The AccountType {0} is invalid.
InvalidParameter	The value of parameter {0} is invalid.
InvalidParameter	The Admin password specified is not allowed.
InvalidParameter	'The supplied password must be between {0}-{1} characters long and must satisfy at least {2} of password complexity requirements from the following: Contains an uppercase character Contains a lowercase character Contains a numeric digit Contains a special character.
InvalidParameter	The Admin Username specified is not allowed.
InvalidParameter	Cannot attach an existing OS disk if the VM is created from a platform or user image.
InvalidParameter	Container name {0} is invalid. Container names must be 3-63 characters in length and may contain only lower-case alphanumeric characters and hyphen. Hyphen must be preceded and followed by an alphanumeric character.
InvalidParameter	Container name {0} in URL {1} is invalid. Container names must be 3-63 characters in length and may contain only lower-case alphanumeric characters and hyphen. Hyphen must be preceded and followed by an alphanumeric character.
InvalidParameter	The blob name in URL {0} contains a slash. This is presently not supported for disks.
InvalidParameter	The URI {0} does not look to be correct blob URI.
InvalidParameter	A disk named '{0}' already uses the same LUN: {1}.
InvalidParameter	A disk named '{0}' already exists.
InvalidParameter	Cannot specify user image overrides for a disk already defined in the specified image reference.
InvalidParameter	A disk named '{0}' already uses the same VHD URL {1}.
InvalidParameter	The specified fault domain count {0} must fall in the range {1} to {2}.
InvalidParameter	The license type {0} is invalid. Valid license types are: Windows_Client or Windows_Server, case sensitive.
InvalidParameter	Linux host name cannot exceed {0} characters in length or contain the following characters: {1}.
InvalidParameter	Destination path for Ssh public keys is currently limited to its default value {0} due to a known issue in Linux provisioning agent.
InvalidParameter	A disk at LUN {0} already exists.
InvalidParameter	Subscription {0} of the request must match the subscription {1} contained in the managed disk id.
InvalidParameter	Custom data in OSProfile must be in Base64 encoding and with a maximum length of {0} characters.
InvalidParameter	Blob name in URL {0} must end with '{1}' extension.
InvalidParameter	{0}' is not a valid captured VHD blob name prefix. A valid prefix matches regex '{1}'.
InvalidParameter	Certificates cannot be added to your VM if the VM agent is not provisioned.
InvalidParameter	A disk at LUN {0} already exists.
InvalidParameter	Unable to create the VM because the requested size {0} is not available in the cluster where the availability set is currently allocated. The available sizes are: {1}. Read more on VM resizing strategy at https://aka.ms/azure-resizevm.
InvalidParameter	The requested VM size {0} is not available in the current region. The sizes available in the current region are: {1}. Find out more on the available VM sizes in each region at https://aka.ms/azure-regions.
InvalidParameter	The requested VM size {0} is not available in the current region. Find out more on the available VM sizes in each region at https://aka.ms/azure-regions.
InvalidParameter	Windows admin user name cannot be more than {0} characters long, end with a period(.), or contain the following characters: {1}.
InvalidParameter	Windows computer name cannot be more than {0} characters long, be entirely numeric, or contain the following characters: {1}.
MissingMoveDependentResources	The move resources request does not contain all the dependent resources. Please check error details for missing resource ids.
MoveResourcesHaveInvalidState	The Move Resources request contains VMs which are associated with invalid storage accounts. Please check details for these resource ids and referenced storage account names.
MoveResourcesHavePendingOperations	The move resources request contains resources for which an operation is pending. Please check details for these resource ids. Retry your operation once the pending operations complete.
MoveResourcesNotFound	The move resources request contains resources that cannot be found. Please check details for these resource ids.
NetworkingInternalOperationError	Unknown network allocation error.
NetworkingInternalOperationError	Unknown network allocation error
NetworkingInternalOperationError	An internal error occurred in processing network profile of the VM.
NotFound	The Availability Set {0} cannot be found.
NotFound	Source Virtual Machine '{0}' specified in the request does not exist in this Azure location.
NotFound	Tenant with id {0} not found.
NotFound	The Image {0} cannot be found.
NotSupported	The license type is {0}, but the image blob {1} is not from on-premises.
OperationNotAllowed	Availability Set {0} cannot be deleted. Before deleting an Availability Set please ensure that it does not contain any VM.
OperationNotAllowed	Changing availability set SKU from 'Aligned' to 'Classic' is not allowed.
OperationNotAllowed	Cannot modify extensions in the VM when the VM is not running.
OperationNotAllowed	The Capture action is only supported on a Virtual Machine with blob based disks. Please use the 'Image' resource APIs to create an Image from a managed Virtual Machine.
OperationNotAllowed	The resource {0} cannot be created from Image {1} until Image has been successfully created.
OperationNotAllowed	Updates to encryptionSettings is not allowed when VM is allocated, Please retry after VM is deallocated
OperationNotAllowed	Addition of a managed disk to a VM with blob based disks is not supported.
OperationNotAllowed	The maximum number of data disks allowed to be attached to a VM of this size is {0}.
OperationNotAllowed	Addition of a blob based disk to VM with managed disks is not supported.
OperationNotAllowed	Operation '{0}' is not allowed on Image '{1}' since the Image is marked for deletion. You can only retry the Delete operation (or wait for an ongoing one to complete).
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since the VM is generalized.
OperationNotAllowed	Operation '{0}' is not allowed as Restore point collection '{1}' is marked for deletion.
OperationNotAllowed	Operation '{0}' is not allowed on VM extension '{1}' since it is marked for deletion. You can only retry the Delete operation (or wait for an ongoing one to complete).
OperationNotAllowed	Operation '{0}' is not allowed since the Virtual Machines '{1}' are being provisioned using the Image '{2}'.
OperationNotAllowed	Operation '{0}' is not allowed since the Virtual Machine ScaleSet '{1}' is currently using the Image '{2}'.
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since the VM is marked for deletion. You can only retry the Delete operation (or wait for an ongoing one to complete).
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since the VM is either deallocated or marked to be deallocated.
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since the VM is running. Please power off explicitly in case you shut down the VM from inside the guest operating system.
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since the VM is not deallocated.
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since VM has extension '{2}' in failed state.
OperationNotAllowed	Operation '{0}' is not allowed on VM '{1}' since another operation is in progress.
OperationNotAllowed	The operation '{0}' requires the Virtual Machine '{1}' to be Generalized.
OperationNotAllowed	The operation requires the VM to be running (or set to run).
OperationNotAllowed	Disk with size {0}GB, which is smaller than the size {1}GB of corresponding disk in Image, is not allowed.
OperationNotAllowed	VM Scale Set extensions of handler '{0}' can be added only at the time of VM Scale Set creation.
OperationNotAllowed	VM Scale Set extensions of handler '{0}' can be deleted only at the time of VM Scale Set deletion.
OperationNotAllowed	VM '{0}' is already using managed disks.
OperationNotAllowed	VM '{0}' belongs to 'Classic' availability set '{1}'. Please update the availability set to use 'Aligned' SKU and then retry the Conversion.
OperationNotAllowed	VM created from Image cannot have blob based disks. All disks have to be managed disks.
OperationNotAllowed	Capture operation cannot be completed because the VM is not generalized.
OperationNotAllowed	Management operations on VM '{0}' are disallowed because VM disks are being converted to managed disks.
OperationNotAllowed	An ongoing operation is changing power state of Virtual Machine {0} to {1}. Please perform operation {2} after some time.
OperationNotAllowed	Unable to add or update the VM. The requested VM size {0} may not be available in the existing allocation unit. Read more on VM resizing strategy at https://aka.ms/azure-resizevm.
OperationNotAllowed	Unable to resize the VM because the requested size {0} is not available in the cluster where the availability set is currently allocated. The available sizes are: {1}. Read more on VM resizing strategy at https://aka.ms/azure-resizevm.
OperationNotAllowed	Unable to resize the VM because the requested size {0} is not available in the cluster where the VM is currently allocated. To resize your VM to {1} please deallocate (this is Stop operation in the Azure portal) and try the resize operation again. Read more on VM resizing strategy at https://aka.ms/azure-resizevm.
OSProvisioningClientError	OS Provisioning failed for VM '{0}' because the guest OS is currently being provisioned.
OSProvisioningClientError	OS provisioning for VM '{0}' failed. Error details: {1} Make sure the image has been properly prepared (generalized). Instructions for Windows: https://azure.microsoft.com/documentation/articles/virtual-machines-windows-upload-image/
OSProvisioningClientError	SSH host key generation failed. Error details: {0}. To resolve this issue verify if Linux agent is set up properly. You can check the instructions at : https://docs.microsoft.com/azure/virtual-machines/extensions/agent-linux/
OSProvisioningClientError	Username specified for the VM is invalid for this Linux distribution. Error details: {0}.
OSProvisioningInternalError	OS Provisioning failed for VM '{0}' due to an internal error.
OSProvisioningTimedOut	OS Provisioning for VM '{0}' did not finish in the allotted time. The VM may still finish provisioning successfully. Please check provisioning state later.
OSProvisioningTimedOut	OS Provisioning for VM '{0}' did not finish in the allotted time. The VM may still finish provisioning successfully. Please check provisioning state later. Also, make sure the image has been properly prepared (generalized). Instructions for Windows: https://azure.microsoft.com/documentation/articles/virtual-machines-windows-upload-image/ Instructions for Linux: https://azure.microsoft.com/documentation/articles/virtual-machines-linux-capture-image/
OSProvisioningTimedOut	OS Provisioning for VM '{0}' did not finish in the allotted time. However, the VM guest agent was detected running. This suggests the guest OS has not been properly prepared to be used as a VM image (with CreateOption=FromImage). To resolve this issue, either use the VHD as is with CreateOption=Attach or prepare it properly for use as an image: Instructions for Windows: https://azure.microsoft.com/documentation/articles/virtual-machines-windows-upload-image/ Instructions for Linux: https://azure.microsoft.com/documentation/articles/virtual-machines-linux-capture-image/
OverConstrainedAllocationRequest	The required VM size is not currently available in the selected location.
ResourceUpdateBlockedOnPlatformUpdate	Resource cannot be updated at this time due to ongoing platform update. Please try again later.
StorageAccountLimitation	Storage account '{0}' does not support page blobs which are required to create disks.
StorageAccountLimitation	Storage account '{0}' has exceeded its allocated quota.
StorageAccountLocationMismatch	Could not resolve storage account {0}. Please ensure it was created through the Storage Resource Provider in the same location as the compute resource.
StorageAccountNotFound	Storage account {0} not found. Ensure storage account is not deleted and belongs to the same Azure location as the VM.
StorageAccountNotRecognized	Please use a storage account managed by Storage Resource Provider. Use of {0} is not supported.
StorageAccountOperationInternalError	Internal error occurred while accessing storage account {0}.
StorageAccountSubscriptionMismatch	Storage account {0} doesn't belong to subscription {1}.
StorageAccountTooBusy	Storage account '{0}' is too busy currently. Consider using another account.
StorageAccountTypeNotSupported	Disk {0} uses {1} which is a Blob storage account. Please retry with General purpose storage account.
StorageAccountTypeNotSupported	Storage account {0} is of {1} type. Boot Diagnostics supports {2} storage account types. This error occurs if you use the premium storage account for Boot diagnostics. For more information, see How to use boot diagnostics.
SubscriptionNotAuthorizedForImage	The subscription is not authorized.
TargetDiskBlobAlreadyExists	Blob {0} already exists. Please provide a different blob URI to create a new blank data disk '{1}'.
TargetDiskBlobAlreadyExists	Capture operation cannot continue because target image blob {0} already exists and the flag to overwrite VHD blobs is not set. Either delete the blob or set the flag to overwrite VHD blobs and retry.
TargetDiskBlobAlreadyExists	Capture operation cannot continue because target image blob {0} has an active lease on it.
TargetDiskBlobAlreadyExists	Blob {0} already exists. Please provide a different blob URI as target for disk '{1}'.
TooManyVMRedeploymentRequests	Too many redeployment requests have been received for VM '{0}' or the VMs in the same availabilityset with this VM. Please retry later.
VHDSizeInvalid	The specified disk size value of {0} for disk '{1}' with blob {2} is invalid. Disk size must be between {3} and {4}.
VMAgentStatusCommunicationError	VM '{0}' has not reported status for VM agent or extensions. Please verify the VM has a running VM agent, and can establish outbound connections to Azure storage.
VMArtifactRepositoryInternalError	An error occurred while communicating with the artifact repository to retrieve VM artifact details.
VMArtifactRepositoryInternalError	An internal error occurred while retrieving the VM artifact data from the artifact repository.
VMExtensionHandlerNonTransientError	Handler '{0}' has reported failure for VM Extension '{1}' with terminal error code '{2}' and error message: '{3}'
VMExtensionManagementInternalError	Internal error occurred while processing VM extension '{0}'.
VMExtensionManagementInternalError	Multiple errors occurred while preparing the VM extensions. See VM extension instance view for details.
VMExtensionProvisioningError	VM has reported a failure when processing extension '{0}'. Error message: '{1}'.
VMExtensionProvisioningError	Multiple VM extensions failed to be provisioned on the VM. Please see the VM extension instance view for details.
VMExtensionProvisioningTimeout	Provisioning of VM extension '{0}' has timed out. Extension installation may be taking too long, or extension status could not be obtained.
VMMarketplaceInvalidInput	Creating a virtual machine from a non Marketplace image does not need Plan information, please remove the Plan information in the request. OS disk name is {0}.
VMMarketplaceInvalidInput	The purchase information does not match. Unable to deploy from the Marketplace image. OS disk name is {0}.
VMMarketplaceInvalidInput	Creating a virtual machine from Marketplace image requires Plan information in the request. OS disk name is {0}.
VMNotFound	The VM '{0}' cannot be found.
VMRedeploymentFailed	VM '{0}' redeployment failed due to an internal error. Please retry later.
VMRedeploymentTimedOut	Redeployment of VM '{0}' didn't finish in the allotted time. It might finish successfully in sometime. Else, you can retry the request.
VMStartTimedOut	VM '{0}' did not start in the allotted time. The VM may still start successfully. Please check the power state later.

Next steps

If you need more help, you can contact the Azure experts on the MSDN Azure and Stack Overflow forums. Alternatively, you can file an Azure support incident. Go to the Azure support site and select Get Support.