Can't boot Linux livecd in Windows host

Discussions about using Linux guests in VirtualBox.
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HunterZ
Posts: 2
Joined: 9. Mar 2019, 19:59

Can't boot Linux livecd in Windows host

Post by HunterZ »

Using VirtualBox 6 in Windows 10 Pro x64.

When trying to boot an Ubuntu MATE 18.04.2 x64 livecd ISO, I get a grey screen with a keyboard icon at the bottom for a few seconds. It then changes to a black screen with a flashing text cursor and stays there forever.

I want to install Linux in the VM, so I'm booting with a dynamic VDI hard disk image (max size 20GB) created via the new VM wizard.

I've tried all kinds of things:
  • Changing number of CPUs
  • Toggled PAE/NX
  • Uninstalled Hyper-V
  • Disabled 3D acceleration
  • Tried every graphics controller option
  • Toggled SSD mode for virtual hard disk
  • Disabled audio
I've attached a log file from a run.
Attachments
VBox.7z
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HunterZ
Posts: 2
Joined: 9. Mar 2019, 19:59

Re: Can't boot Linux livecd in Windows host

Post by HunterZ »

Update: Got it working. It was either that a second reboot was needed after uninstalling Hyper-V, or following the instructions in the thread "I have a 64bit host, but can't install 64bit guests" (sorry, can't post a link because of stupid forum rules).
socratis
Site Moderator
Posts: 27330
Joined: 22. Oct 2010, 11:03
Primary OS: Mac OS X other
VBox Version: PUEL
Guest OSses: Win(*>98), Linux*, OSX>10.5
Location: Greece

Re: Can't boot Linux livecd in Windows host

Post by socratis »

It seems that you had Hyper-V enabled, but it could be for a variety of reasons, most of which are described in the "I have a 64bit host, but can't install 64bit guests" FAQ that you used:
00:00:02.481132 HM: HMR3Init: Attempting fall back to NEM: VT-x is not available
00:00:02.562670 NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...
...
00:00:03.061571 Features
00:00:03.061571   Mnemonic - Description                                  = guest (host)
00:00:03.061615   HVP - Hypervisor Present (we're a guest)                = 1 (1)
You could tell if this was true from the status bar where the "slow" icon (Image) showed.

If VirtualBox is running without Hyper-V enabled, where proper, hardware virtualization is actually available, then the standard virtualization icon (Image) would show.
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