I had this issue also and I fixed it by opening up the “Oracle Virtual Box Manager” GUI. Go to “Settings” -> “Network” and choose “Adapter 1” then expand the option by clicking on the arrow and make sure that “Cable Connected” is checked.
You can only use one virtual CPU without VT-x. Thus, the error message stating that VT-x isn’t enabled is caused by the following line: vb.customize [“modifyvm”, :id, “–cpus”, “2”] Replacing it with the following works (Vagrant has a shorthand for setting the CPU count): vb.cpus = 1 NOTE: You can only run 32-bit VMs inside … Read more
I found it! After much research, and trial and error, here is what enabled me to run VMs in VirtualBox on Windows 10 with Windows Subsystem for Linux installed: In an elevated (admin) cmd.exe or PowerShell, do: bcdedit /set hypervisorlaunchtype off and make sure Hyper-V and Windows Sandbox are disabled in Windows Features (which you … Read more
tl;dr Use vagrant halt when you want to power off your machine, use vagrant suspend when you want to hibernate your machine. From the Vagrant docs: vagrant suspend A suspend effectively saves the exact point-in-time state of the machine, so that when you resume it later, it begins running immediately from that point, rather than … Read more
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 -> … Read more
Try disabling Secure boot in the “Security” section of the settings. I had the same problem with a gen2 Linux vm (running in Hyper-V Manager 10.0.17763.1). Turning off “Enable Secure Boot” allowed booting from an .iso. I think in some other versions of Hyper-V Manager the setting is under “Firmware”
After much consideration and with the help of other posters in this thread (thank you so much for your help!), I found a first bunch of answers to my questions. I am re-writing my answer here though, because it summarizes the concepts and also gives you some actual code to experiment with. Generally, there are … Read more
koding.com has a free VM running Ubuntu. The specs are pretty good, 1 gig memory for example. They have a terminal online you can access through their website, or use SSH. The VM will go to sleep approximately 20 minutes after you log out. The reason is to discourage users from running live production code … Read more