Sign virtual box modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) Centos 8 [closed]

After some research, I found the solution. Solution 1 : disable secure boot. Solution 2 : 1- Install mokutil package sudo dnf update sudo dnf install mokutil 2- Create RSA key under new folder. sudo -i mkdir /root/signed-modules cd /root/signed-modules openssl req -new -x509 -newkey rsa:2048 -keyout MOK.priv -outform DER -out MOK.der -nodes -days 36500 …

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Login credentials of Ubuntu Cloud server image

18.04 setup step-by-step with cloud-localds In short you need on the host: sudo apt-get install cloud-image-utils cat >user-data <<EOF #cloud-config password: asdfqwer chpasswd: { expire: False } ssh_pwauth: True EOF cloud-localds user-data.img user-data # user-data.img MUST come after the rootfs. qemu-system-x86_64 \ -drive file=ubuntu-18.04-server-cloudimg-amd64.img,format=qcow2 \ -drive file=user-data.img,format=raw \ -m 1G … and now you can …

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What exactly do shadow page tables (for VMMs) do?

Shadow page tables are used by the hypervisor to keep track of the state in which the guest “thinks” its page tables should be. The guest can’t be allowed access to the hardware page tables because then it would essentially have control of the machine. So, the hypervisor keeps the “real” mappings (guest virtual -> …

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virt-manager guest resize not working

Make sure guest resizing is enabled in virt-manager: Menu View -> Scale Display -> Auto resize VM with window (Checked) Make sure your have a spice agent on your guest (the virtual machine) https://www.spice-space.org/download.html#guest ‘spice-vdagent’ on linux ‘spice-guest-tools’ on windows How I figured this out, I found a setting in “spicy” that I assumed had …

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