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Is the operating system running on a virtual machine if it's installed via qemu?
Hi everyone,
I found some tutorials on the internet to install operating system using custom iso on the servers without the ip-kvm/ipmi access.
After reading many articles, I still have no ideas if after the installation is done, I have a real operating system running on the bare metal server, or if I have a virtual machine running that operating system on qemu.
Here is the example to use qemu to install Ubuntu
printf "change vnc password\n%s\n" Password | qemu-system-x86_64 -enable-kvm -m 10240 -hda /dev/nvme0n1 -hdb /dev/nvme1n1 -cdrom ubuntu.iso -boot d -vnc :0,password -monitor stdio
Comments
No, you mount the actual drive instead of a qcow2 img or similar.
Here
hda /dev/nvme0n1 -hdb /dev/nvme1n1, you are directly installing OS on disk , so next time if you boot from those disk , that operating system you installed as KVM should now boot directly on your bare-metal .In other wods, concept is install OS through Qemu as KVM but install directly on disk and then reboot system from those disks so you get full fledged OS on bare metal where you do not have IPMI access.