I downloaded the image from the official site. When I try to install from an ISO image in VirtualBox, I am offered a choice of 3 items:

  • Installation

  • Check and install

  • problem solving

I tried the first 2 points, but after selecting them, the black screen hangs. What could be the problem? No errors crashes ...

  • 2
    bit (32 or 64) of the main and installed systems the same? - aleksandr barakin
  • If you are given an exhaustive answer, mark it as correct (a daw opposite the selected answer). - Nicolas Chabanovsky ♦
  • The bitness of the main OS 64, from the official site, downloaded the CentOS image and x86, x64 was written on it. As I understand it, it should be universal. - iluxa1810

2 answers 2

It is necessary to allow virtualization. If I'm not mistaken, CentOS wanted it regardless of the bit rate (although, in theory, it is mandatory only for x64):

Settings -> System -> Acceleration -> Hardware Virtualization: Enable VT-x / AMD-V

If the checkbox is checked, then you must first enable it in the BIOS.

If it is resolved in BIOS, and the main OS is Win8 +, then the problem is in conflict with standard Windows virtualization - it must be disabled (I don’t know how).

UPDATE: I'm confused about something, maybe the wrong option is needed, but

Settings -> System -> Processor -> Additional features: Enable PAE / NX

In general, you need to pay attention to these 2 options and if one of them is stuck, then the BIOS and Windows virtualization.

I tried to install (on Win7)

  1. On the torrent http://mirror.satellite-service.ru/centos/7/isos/x86_64/CentOS-7-x86_64-Everything-1503-01.torrent downloaded iso-image
  2. Created a new virtual user by specifying Linux Ubuntu x64.
  3. I started the installation, installed it.
  4. Rebooted a virtualka.
  5. I waited about a minute with a black flashing cursor.
  6. He caught a glimpse of some kind of mistake, then crawled the progress bar.
  7. The console shell was loaded. It seems to work ...

Here is a screenshot of the virtual settings: http://s017.radikal.ru/i400/1505/ca/7d80a5497d9e.png Yes, you didn’t need PAE / NX. I left all settings except video memory in the default state.

By the way, I remembered that creating a virtual is also important. when choosing a type, some irreversible parameters are set (at least those that cannot be changed through the settings interface). For example, if the virtual machine was created with XP indicated, then the network intulator (based on Win8) did not start on it.

  • That's right, you did not mess up. - oshliaer
  • Anyway, something does not work ... Initially, I had the PAE / NX flag in the Virutual Box. I got into BIOS and got into virtualization, tried to install CentOS, but nothing happened. Disabled the box in the Virtual Box and again nothing ... - iluxa1810
  • Both can checkbox? What OS? - Qwertiy ♦
  • With both checkboxes (BIOS + Virtual Box) also does not plow = (. The main axis of Windows 10 is iluxa1810
  • XP for example, works in Virtual Box ... - iluxa1810

I had the same problem on another processor (AMD Athlon 64) with a reverse attempt to put a 32-bit CentOS version on a 64-bit system. I also thought that by the name there should be a 32-bit version. And I see no reason to run 64-bit on a test virtual machine with the allocation of a minimum of memory.

It was also decided: switching the "RedHat (32-bit)" setting to 64. The rest of the settings do not play a role, PAE is not needed, I don’t need to go into the BIOS (and I don’t remember this option on my computer). Setup switches the optimization of the virtual environment to the type of OSes.