The new Mac OS X 10.7 Lion is not supported by Parallels Server for Mac version 3 or Parallels Server 4.0 for Mac Bare Metal:
- Upgrading the host OS to Lion will lead to Parallels Server 3.0/Parallels Server 4.0 for Mac Bare Metal dispatcher service failure, which is why we strongly discourage upgrading the host OS to Lion.
- Additionally, Lion is not yet supported as a guest OS inside Parallels Server 3 for Mac or Parallels Server 4 for Mac Bare Metal virtual machines.
For both Desktop for Mac and Server for Mac, our current support for Lion is limited to running our products on a Lion Server host operating system.
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If you have servers running Parallels Server for Mac 4.0, refer to the following KB article for more information about Mac OS Lion and Parallels Server for Mac 4.0 compatibilities:
111620 Is Mac OS X 10.7 Lion supported by Parallels Server 4.0 for Mac?