Virtualbox and Serial Port permissions
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by Pandincus
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Published on 2009-08-07T19:38:13Z
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2010/04/26
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I have a Windows XP Pro SP3 host machine running a Windows XP Pro SP3 guest machine. The host machine has one serial port, COM1, that I need to use in the guest machine.
When I add the serial port to the guest machine and try to start it, I get the following error:
Failed to start the virtual machine xxx
Cannot open host device 'COM1' for read/write access.
Check the permissions of that device (VERR_ACCESS_DENIED).
Unknown error creating VM (VERR_ACCESS_DENIED).
What are some of the things that might be causing this problem? How can I check "permissions" on a serial port?
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