CentOS 8
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VirtualBox : Create Virtual Machine2019/12/18

Create a Virtual Machine.
On this example, create VM to install CentOS 8.
[1] Create a Virtual Machine.
# create a directory for VM

[root@dlp ~]#
mkdir /var/vbox
# create a VM

[root@dlp ~]#
VBoxManage createvm \
--name CentOS_8 \
--ostype RedHat_64 \
--register \
--basefolder /var/vbox

Virtual machine 'CentOS_8' is created and registered.
UUID: 0f0cd83e-ce0d-4445-904e-70ece8dbdf5a
Settings file: '/var/vbox/CentOS_8/CentOS_8.vbox'

# modify settings for VM

# replace interface name [enp1s0] to your own environment

[root@dlp ~]#
VBoxManage modifyvm CentOS_8 \
--cpus 4 \
--memory 4096 \
--nic1 bridged \
--bridgeadapter1 enp1s0 \
--boot1 dvd \
--vrde on \
--vrdeport 5001
# configure storage for VM

[root@dlp ~]#
VBoxManage storagectl CentOS_8 --name "CentOS_8_SATA" --add sata

[root@dlp ~]#
VBoxManage createhd \
--filename /var/vbox/CentOS_8/CentOS_8.vdi \
--size 20480 \
--format VDI \
--variant Standard

Medium created. UUID: c19f8675-f169-4eea-8776-4e30925c6a35

[root@dlp ~]#
VBoxManage storageattach CentOS_8 \
--storagectl CentOS_8_SATA \
--port 1 \
--type hdd \
--medium /var/vbox/CentOS_8/CentOS_8.vdi
# configure DVD drive for VM

# example below, it specifies an ISO file for installation

[root@dlp ~]#
VBoxManage storageattach CentOS_8 \
--storagectl CentOS_8_SATA \
--port 0 \
--type dvddrive \
--medium /tmp/CentOS-8-x86_64-1905-dvd1.iso
# confirm settings for VM

[root@dlp ~]#
VBoxManage showvminfo CentOS_8

Name:                        CentOS_8
Groups:                      /
Guest OS:                    Red Hat (64-bit)
UUID:                        0f0cd83e-ce0d-4445-904e-70ece8dbdf5a
Config file:                 /var/vbox/CentOS_8/CentOS_8.vbox
Snapshot folder:             /var/vbox/CentOS_8/Snapshots
Log folder:                  /var/vbox/CentOS_8/Logs
Hardware UUID:               0f0cd83e-ce0d-4445-904e-70ece8dbdf5a
Memory size                  4096MB
Page Fusion:                 disabled
VRAM size:                   8MB
CPU exec cap:                100%
HPET:                        disabled
CPUProfile:                  host
Chipset:                     piix3
Firmware:                    BIOS
Number of CPUs:              4
PAE:                         enabled
Long Mode:                   enabled
Triple Fault Reset:          disabled
APIC:                        enabled
X2APIC:                      enabled
Nested VT-x/AMD-V:           disabled

# * if dettach DVD, run like follows

[root@dlp ~]#
VBoxManage storageattach CentOS_8 --storagectl CentOS_8_SATA --port 0 --device 0 --medium none

[2] Start a Virtual Machine.
[root@dlp ~]#
VBoxManage startvm CentOS_8 --type headless

Waiting for VM "CentOS_8" to power on...
VM "CentOS_8" has been successfully started.
[3] If Firewalld is running, allow ports you set for VRDE port or plan to use for it.
(on this example, it's [5001] port)
[root@dlp ~]#
firewall-cmd --add-port=5000-5010/tcp --permanent

[root@dlp ~]#
firewall-cmd --reload

[4] On enabling VRDP environment, it's possible to connect with RDP.
The example below is on Windows 10.
Run Remote Desktop Client and specify [(VirtualBox Server's Hostname or IP address):(vrdeport set for the VM)] to connect to VM.
[5] After connected successfully, VM console is shown.
[6] Installation finished and Virtual Machine is running normally.
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