{"id":407,"date":"2014-05-28T08:17:01","date_gmt":"2014-05-28T02:47:01","guid":{"rendered":"http:\/\/askadmin.com\/?p=407"},"modified":"2014-05-28T08:20:02","modified_gmt":"2014-05-28T02:50:02","slug":"resolving-issues-after-cloning-virtual-box-virtual-machine","status":"publish","type":"post","link":"https:\/\/askadmin.com\/aa\/resolving-issues-after-cloning-virtual-box-virtual-machine\/","title":{"rendered":"Resolving issues after cloning Virtual box virtual machine"},"content":{"rendered":"<p>Some times we  may encounter few issues with cloned virtual machines at start up .<\/p>\n<p> After cloning a linux Guest I tried to increase memory and started it but it is failed with an error message<\/p>\n<p>Failed to open a session for the virtual machine <\/p>\n<p>VT-x is not available.(VERR_VMX_NO_VMX).<\/p>\n<p>Details<\/p>\n<p>Result Code:<br \/>\nE_FAIL (0x80004005)<br \/>\nComponent:<br \/>\nConsole<br \/>\nInterface:<br \/>\nIConsole {8ab7c520-2442-4b66-8d74-4ff1e195d2b6}<br \/>\n<a href=\"https:\/\/askadmin.com\/aa\/resolving-issues-after-cloning-virtual-box-virtual-machine\/screen-shot-2014-05-28-at-7-58-35-am\/\" rel=\"attachment wp-att-408\"><img loading=\"lazy\" src=\"https:\/\/askadmin.com\/aa\/aa\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-28-at-7.58.35-AM.png\" alt=\"vmbox_error\" width=\"375\" height=\"230\" class=\"aligncenter size-full wp-image-408\" \/><\/a><\/p>\n<p>I just changed RAM size back and started it then increased RAM (We need to shut down virtual machine to change it).<\/p>\n<p>I think this issue can be fixed by also  changing entries in  vbox settings file , this file can be found in Virtualbox directory on host machine. We can open it with a text editor and make changes . <\/p>\n<p>Cloned machine may not be able to start network interface at startup.My guest OS was showing just loopback interface after startup .<br \/>\nI just changed mac address of new cloned device to match with it&#8217;s own macadderss in  file \/etc\/sysconfig\/network-scripts\/ifcfg-eth0 .<br \/>\nNetwork interface settings file location is different in other Linux distro for example ubuntu,debian will have network settings in \/etc\/network\/interfaces file. I also changed mac address in \/etc\/udev\/rules.d\/70-persistent-net.rules ( we can find the macaddress from virtual machine settings&#8212;>Network) .<\/p>\n<p><a href=\"https:\/\/askadmin.com\/aa\/resolving-issues-after-cloning-virtual-box-virtual-machine\/screen-shot-2014-05-28-at-7-32-57-am\/\" rel=\"attachment wp-att-409\"><img loading=\"lazy\" src=\"https:\/\/askadmin.com\/aa\/aa\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-28-at-7.32.57-AM-500x309.png\" alt=\"Vmbox_rule_edit\" width=\"500\" height=\"309\" class=\"aligncenter size-medium wp-image-409\" srcset=\"https:\/\/askadmin.com\/aa\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-28-at-7.32.57-AM-500x309.png 500w, https:\/\/askadmin.com\/aa\/wp-content\/uploads\/2014\/05\/Screen-Shot-2014-05-28-at-7.32.57-AM.png 763w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some times we may encounter few issues with cloned virtual machines at start up . After cloning a linux Guest I tried to increase memory and started it but it is failed with an error message Failed to open a session for the virtual machine VT-x is not available.(VERR_VMX_NO_VMX). Details [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Resolving issues after cloning Virtual box virtual machine - Ask Admin - A Lifelong Learner<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/askadmin.com\/aa\/resolving-issues-after-cloning-virtual-box-virtual-machine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Resolving issues after cloning Virtual box virtual machine - Ask Admin - A Lifelong Learner\" \/>\n<meta property=\"og:description\" content=\"Some times we may encounter few issues with cloned virtual machines at start up . 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After cloning a linux Guest I tried to increase memory and started it but it is failed with an error message Failed to open a session for the virtual machine VT-x is not available.(VERR_VMX_NO_VMX). 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