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--- vm:virtualbox [2014/05/18 16:27] – skipidar
+++ vm:virtualbox [2020/12/27 20:35] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+===== Virtualbox =====
+=== Hardware Virtualization ===
+Hardware Virtualization (alias VT-X - a command Set of the CPU) is required for virtual machines.
+== on MSI Mainboard ==
+Enabling it is hidden within
+<code>
+Overclocking > CPU Features > Inter Virtualization Technology
+</code>
+**ACHTUNG:** "CPU Features" IS FUCKING ONLY AVAILABLE IN "STANDARD MODE" - NOT IN "ECO MODE"
+{{https://lh3.googleusercontent.com/-tbZpzosm5_8/Wqpj6zIVVrI/AAAAAAAAAFM/lyMkyhGs8tEiFW1-1Yu7DdkMO9iM2Jq4QCHMYCw/s0/2018-03-15_13-15-36.png?800}}
+== on HP Notebook ==
+{{https://lh3.googleusercontent.com/-g7MYwCe8tMg/WqpjjMM8ozI/AAAAAAAAAFI/r4cjlnQE2AYv5iNkJ5eMy6qM5aRN12UFACHMYCw/s0/2018-03-15_13-14-00.png}}
+{{https://lh3.googleusercontent.com/-GMtpMuuPCTA/Wqpjdwfc_vI/AAAAAAAAAFE/0VSmI6OQDc0KAnsjAKOLlNBB50EbTwgBwCHMYCw/s0/2018-03-15_13-13-40.jpg}}
+== DeviceGuard ==
+"DeviceGuard" also blocks the VT-x feature,
+which causes the "VERR_VMX_NO_VMX" message by VirtualBox or Vagrant.
+You can check, whether DeviceGuard is running under SystemInformation. Search for:
+"DeviceGuard Virtualization: Running"
+{{https://docs.microsoft.com/en-us/visualstudio/cross-platform/tools-for-cordova/tips-workarounds/media/android-tips/device-guard.png}}
+You can disable it, via "gpedit.msc",
+setting "Computer Configuration\Administrative Templates\System\Device Guard\Turn On Virtualization Based Security" to "Disabled".
+{{https://www.tenforums.com/attachments/tutorials/108861d1485973713-enable-disable-device-guard-windows-10-a-device_guard_gpedit-1.png}}
+Additionally you can set "bcdedit /set hypervisorlaunchtype off"
+  * https://arstechnica.com/civis/viewtopic.php?f=8&t=1423473
+  * https://forums.virtualbox.org/viewtopic.php?f=38&t=86399
+You can check, whether the device guard is running under
+== Device Guard and Credential Guard hardware readiness tool ==
+You can use the tool to disable the DeviceGuard.
+Use the **Device Guard and Credential Guard hardware readiness tool** from Microsoft to disable the credential guard:
+https://www.microsoft.com/en-us/download/details.aspx?id=53337
+Run Powershell as administrator and follow this steps:
+To verify DG/CG is enabled:
+<code>DG_Readiness_Tool_v3.6 -Ready</code>
+To disable DG/CG:
+<code>DG_Readiness_Tool_v3.6 -Disable</code>
+and restart the PC.
+If Powershell can't execute the script, first try to set the execution policies unrestricted with this just typing:
+<code>Set-ExecutionPolicy Unrestricted</code>
+Try again to execute the script and restart the PC.
+=== Resolution ===
+How to customize Virtual box resolution is written here: http://www.virtualbox.org/manual/ch09.html
+<code>
+VBoxManage.exe setextradata "Windows8" CustomVideoMode1 1680x1050x32
+VBoxManage.exe setextradata global GUI/MaxGuestResolution any
+</code>
+=== Release Disk space ===
+The dynamic disk occupies XGB of real disk space, once there tehre were XGB of Data. \\
+But the virtualdisk does not automatically release diskpace. \\
+To release diskspace do:
+- Disk defragmentation inside of the virtual machine
+- use [[ http://technet.microsoft.com/en-us/sysinternals/bb897443.aspx | sdelete.exe ]] tool to delete unneeded blocks
+<code>
+sdelete.exe -z
+</code>
+- use vmbox toolkit to compact the disk
+<code>
+VBoxManage modifyhd "X:\Virtual Machines VirtualBox\VirtualboxHdd.vdi" --compact
+</code>
+=== Running Virtualbox as a VBoxHeadlessTray===
+http://www.toptensoftware.com/VBoxHeadlessTray/
+Use the vboxvmservice tool to run Virtual Machines as a service!
+=== Network ===
+The Network woks if set to **Networkbridge**