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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi All,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I’m developing a Quantum plugin and need to run ‘sudo ovs-vsctl’ command in my python code. When I run it as a script on Ubuntu, it was OK. However, if I run it as a background service(process), I hit the following error:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D'> </span></b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>YuLing debug -->line=sudo: no tty present and no askpass program specified<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=Sorry, try again.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=sudo: no tty present and no askpass program specified<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=Sorry, try again.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=sudo: no tty present and no askpass program specified<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=Sorry, try again.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2013-08-19 23:12:29 DEBUG [quantum.plugins.dell.agent.dell_ovs_quantum_agent] YuLing debug -->line=sudo: 3 incorrect password attempts<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I tried to play around with /etc/sudoers to turn off requiretty parameter. However it didn’t help…any idea?<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>YuLing<o:p></o:p></span></p></div></div></div></div></div></body></html>