installing Centos 7 on Windows host hang

[Alaa_12]

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ModEdit; related ticket: #18307: VM Hang during installing of Centos

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Hello Team, i created new VM and attach the Centos 7 ISO file the installation screen appears
after that it hang i tried to change the display settings as i suspect its video card issue but its the same issue i attached the logs thanks for support regards

bug tracking Ticket #18307

[andyp73]

00:00:05.106799   VRamSize         <integer> = 0x0000000001000000 (16 777 216, 16 MB)

16MB video memory isn't a viable configuration for a modern GUI based OS. You should probably increase this to 128MB (or more if you enable 3D acceleration).

00:00:05.107060 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:05.179702 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...
...
00:00:05.181318 NEM: Adjusting APIC configuration from X2APIC to APIC max mode.  X2APIC is not supported by the WinHvPlatform API!
00:00:05.181323 NEM: Disable Hyper-V if you need X2APIC for your guests!

These messages (and the tortoise icon) show that VirtualBox is attempting to use Hyper-V as the virtualisation mechanism as it can't get a direct hold of the VT-x capabilities of the CPU. If you disable Hyper-V in Windows (along with all the hidden things that use it) then you should find performance improves and the guest become usable.

-Andy.

[Alaa_12]

thanks alot for your suggestions i thought i can run both virtualbox and hyper-v

[socratis]

In some cases you can. VirtualBox 6.0.0 introduced that feature. But not yet everything is working, we still haven't figured out what makes it "sing"... See "VirtualBox 6.0 and Hyper-V".

BTW, I don't know what this thread is doing in the "Windows Guests" section, it's a "Linux Guests" on a "Windows Hosts" question. Moving to the latter...