Friday, November 23, 2012

[solved] Failed to start Qemuwrapper/Dynamips on GNS3

Today, when trying to open an old topology by GNS3, I can not start it normally. GNS3 reports some kind of errors. Qemu can not start on port used in previous working topology. 
 THe same problem to qemuwrapper and Dynamips. I checked all the file permisson, path to file, using port... everything's ok but these errors still appear.


I realized that yesterday I made a change in /etc/hosts file to access to some blocked sites and forgot to add back an entry "127.0.0.1 localhost" to this file. After adding this line, these errors are no longer displayed.


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