If a box is having a problem starting up or running, clues to help you fix the problem may be found in the trouble log. The trouble log displays the virtual machine state, the virtual machine libvirt configuration, and the QEMU hypervisor log.
Right-click on the box in the collection view and select Properties, or if the box is running, click the menu () button in the header bar and select Properties.
Click the System tab.
Click the Troubleshooting Log button to view the log.
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