Virtual Machine deployment measurement quick development platform a solution for ora-27101 errors on the server side

Virtual Machine deployment measurement quick development platform a solution for ora-27101 errors on the server side
A database error occurred recently when deploying the system using the hyper-v virtual machine. The deployment is as follows: 1. Stop hyper-v in an existing server environment, copy out the vhd file 2. Create a new virtual machine, select the copied file 3. Start the new virtual machine, change the computer name of the virtual machine, and modify the listening and service name of the oracle database. 4. Restart oracle instances and listeners. 5. Connecting to the database, the following Error was reported: Error: ORA-01034: Oracle not availableORA-27101: shared memory realm dose not exists first thought there was a problem with the shared memory, online ora-27101 Error Code also has a lot of cases, there are different situations caused. This is because the database is not started properly. We only need to use the script to restart SQL> conn/as sysdbasql> startup