Repair / troubleshoot a Linux VM – Azure

If you encounter a boot or disk error with a VM, you need to get the OS disk into another VM to troubleshoot the issue.

The command we will run into Azure Cloud Shell is az vm repair create. To create a troubleshooting VM, follow these steps:

Open Azure Cloud Shell in bash or install Azure CLI in your bash environment.
Run the following command: az vm repair create -g “resourcegroupname” -n “VMname” –verbose
Insert admin credentials for the newly created VM into the bash shell
Connect to the newly created server and start analyzing the problem

Remove UDR from a subnet with a private endpoint associated – Azure

If you try to remove a UDR from a subnet that contains private endpoints, you may get the following error:

Failed to dissociate subnet 'SubnetName'. Error: Private endpoint network policies cannot be enabled on private endpoint subnet 'FullPathSubnet' .

To resolve run the following command using Azure CLI. Keep the route table parameter blank.

az network vnet subnet update -g MyResourceGroup -n MySubnet --vnet-name MyVNet --route-table ""