[ovirt-users] Rest api body for updating vm os type

Hello, all, I want to update vm os type by ovirt rest api. The following is my request: Method: put Content-Type: application/xml Body: <vm><os type="windows_7"></os></vm> The response from ovirt engine is: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <fault> <reason>Operation Failed</reason> <detail>[Cannot edit VM. Invalid time zone for given OS type.]</detail> </fault> Can anybody give a correct body for updating vm os type from "other" to "windows_7"? Thank you very much. -- Best regards, Ao Qingyun aoqingyun(a)gmail.com