[Oracle RAC 12.1 SHARED FILE SYSTEM Installation]: Virtual machine configs for dns server

# su - vmadm

$ vm=vm_oel_dns

Creating directories for the virtual machine and for snapshots

$ mkdir -p ${VM_HOME}/${vm}/snapshots

Creating and registering the virtual machine:

$ VBoxManage createvm \
--name ${vm} \
--ostype RedHat_64 \
--basefolder ${VM_HOME}/${vm} \
--register

Setting the RAM limit:

$ VBoxManage modifyvm ${vm} --memory 512

Connecting a video card with 32 MB:

$ VBoxManage modifyvm ${vm} --vram 32

Removing sound card, removing floppy drive:

$ VBoxManage modifyvm ${vm} --floppy disabled --audio none

Connecting a hard disk controller (SAS):

$ VBoxManage storagectl ${vm} \
--add sas \
--name "SAS Controller"

Создание и подключение жестких дисков:

I create virtual hard disks. The size is recommended to be set according to available resources. Otherwise, problems and virtual machine crashes may occur):

$ cd ${VM_HOME}/${vm}/${vm}

$ VBoxManage createhd \
--filename ${vm}_dsk1.vdi \
--size 40960 \
--format VDI \
--variant Standard

Connecting disks to SAS controller:

$ VBoxManage storageattach ${vm} \
--storagectl "SAS Controller" \
--port 0 \
--type hdd \
--medium ${vm}_dsk1.vdi

Connecting an IDE controller to which a DVD-ROM will be later connected:

$ VBoxManage storagectl ${vm} \
--add ide \
--name "IDE Controller"

Connecting a DVD image of the operating system to the IDE controller:

$ VBoxManage storageattach ${vm} \
--storagectl "IDE Controller" \
--port 0 \
--device 0 \
--type dvddrive \
--medium  /home/marley/Downloads/OracleLinux6U7/x64/OracleLinux-R6-U7-Server-x86_64-dvd.iso

Connecting network interfaces:

$ VBoxManage modifyvm ${vm} \
--nictype1 82540EM \
--nic1 bridged \
--bridgeadapter1 eth0

Determine the order of devices from which the system will attempt to boot:

$ VBoxManage modifyvm ${vm} \
--boot1 disk \
--boot2 dvd

Define the directory for snapshots:

$ VBoxManage modifyvm ${vm} \
--snapshotfolder ${VM_HOME}/${vm}/snapshots

Provide the ability to connect to the machine via RDP:

$ VBoxManage modifyvm ${vm} \
--vrde on \
--vrdemulticon on \
--vrdeauthtype null \
--vrdeaddress 192.168.1.5 \
--vrdeport 3389

Show the result of the created virtual machine:

$ VBoxManage showvminfo ${vm}

THE VIRTUAL MACHINE IS READY FOR OPERATING SYSTEM INSTALLATION

Start the virtual machine with the ability to connect via RDP:

$ VBoxHeadless --startvm ${vm}

The operating system should be installed on 1 disk.