Finding out information about plugged in devices in the motherboard without opening the machine. The following command should output something similar to this: Congratulations, you now know you only used two banks out of 3, and the system’s maximum allowed memory. PCI Devices: USB Devices:
KVM Nested virtualization. For my current project, I needed to perform nested virtualization on KVM using Ubuntu 12.04, and I encountered the VM would pause itself after showing the bios. That error dragged me to the logs where this line called my attention: And digging, I found out it’s a bug known issue with the 12.04 kernel.
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