Benchmark #131376 - pibenchmarks.com

Brand: Oracle VirtualBox Virtual Hard Disk
Virtual
#286 / 1,698
55
#1,632 / 1,698
#0 / 94
#0 / 13
0

Overview
2026-02-09 14:55:56
#131,376
9,442
+9,442 (+100.00%)
Anonymous

Storage Details
Oracle VirtualBox Virtual Hard Disk
Virtual
21G
USB Flash
VirtualBox
VBOXHARDDISK
None

System Board Details

Oracle VirtualBox
VirtualBox
innotek GmbH
12th Gen Intel Core i5-12600KF
6
Oracle

Operating System

Linux Mint 22.3
x86_64

Benchmark Results
579 MB/s
1920 MB/s
1394.42 MB/s
7,879 IOPS
9,437 IOPS
31,519 KB/s
37,751 KB/s
13,820 KB/s
16,421 KB/s
12,068 KB/s
15,634 KB/s

inxi Results
System: Host: MintC-VirtualBox Kernel: 6.14.0-37-generic arch: x86_64 bits: 64 compiler: N/A clocksource: tsc available: kvm-clock,acpi_pm parameters: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic root=UUID=1129ee60-6e37-4482-9768-ca59155d3272 ro quiet splash Desktop: Cinnamon v: 6.6.4 tk: GTK v: 3.24.41 wm: muffin v: 6.6.1 dm: LightDM v: 1.30.0 Distro: Linux Mint 22.3 Zena base: Ubuntu 24.04 noble Machine: Type: Virtualbox System: innotek GmbH product: VirtualBox v: 1.2 VirtualBox-a44eae9d-498f-4567-b9aa-1b0ea42d97f7 Chassis: Oracle Corporation type: 1 N/A Mobo: Oracle model: VirtualBox v: 1.2 N/A BIOS: innotek GmbH v: VirtualBox date: 12/01/2006 Memory: System RAM: total: 4 GiB available: 3.82 GiB used: 1.85 GiB (48.4%) RAM Report: message: No RAM data found. PCI Slots: Message: No PCI Slot data found. CPU: Info: model: 12th Gen Intel Core i5-12600KF bits: 64 type: MCP arch: Alder Lake gen: core 12 level: v3 note: check built: 2021+ process: Intel 7 (10nm ESF) family: 6 model-id: 0x97 (151) stepping: 2 microcode: 0xFFFFFFFF Topology: cpus: 1x cores: 6 smt: cache: L1: 480 KiB desc: d-6x48 KiB! i-6x32 KiB L2: 7.5 MiB desc: 6x1.2 MiB L3: 120 MiB desc: 6x20 MiB Speed (MHz): avg: 3686 min/max: N/A cores: 1: 3686 2: 3686 3: 3686 4: 3686 5: 3686 6: 3686 bogomips: 44236 Flags: 3dnowprefetch abm adx aes apic arat arch_capabilities avx avx2 bmi1 bmi2 clflush clflushopt cmov constant_tsc cpuid cx16 cx8 de f16c flush_l1d fma fpu fsgsbase fxsr ht hypervisor ibrs_enhanced invpcid lahf_lm lm mca mce md_clear mmx movbe msr mtrr nonstop_tsc nopl nx pae pat pcid pclmulqdq pge pni popcnt pse pse36 rdrand rdseed rdtscp rep_good sep sha_ni sse sse2 sse4_1 sse4_2 ssse3 syscall tsc tsc_known_freq vme xsave xtopology Vulnerabilities: Type: gather_data_sampling status: Not affected Type: ghostwrite status: Not affected Type: indirect_target_selection mitigation: Aligned branch/return thunks Type: itlb_multihit status: Not affected Type: l1tf status: Not affected Type: mds status: Not affected Type: meltdown status: Not affected Type: mmio_stale_data status: Not affected Type: reg_file_data_sampling status: Vulnerable: No microcode Type: retbleed mitigation: Enhanced IBRS Type: spec_rstack_overflow status: Not affected Type: spec_store_bypass status: Vulnerable Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization Type: spectre_v2 mitigation: Enhanced / Automatic IBRS! PBRSB-eIBRS: SW sequence! BHI: SW loop, KVM: SW loop Type: srbds status: Not affected Type: tsa status: Not affected Type: tsx_async_abort status: Not affected Type: vmscape status: Not affected Graphics: Device-1: VMware SVGA II Adapter driver: vmwgfx v: 2.20.X.X ports: active: Virtual-1 empty: Virtual-2, Virtual-3, Virtual-4, Virtual-5, Virtual-6, Virtual-7, Virtual-8 bus-ID: 00:02.0 chip-ID: 15ad:0405 class-ID: 0300 Display: server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X: loaded: vmware unloaded: fbdev,modesetting,vesa dri: vmwgfx gpu: vmwgfx display-ID: :0 screens: 1 Screen-1: 0 s-res: 1280x800 s-dpi: 96 s-size: 338x211mm (13.31x8.31") s-diag: 398mm (15.69") Monitor-1: Virtual-1 mapped: Virtual1 res: 1280x800 hz: 60 size: N/A modes: 1280x800, 4096x2160, 2560x1600, 1920x1440, 1856x1392, 1792x1344, 2048x1152, 1920x1200, 1920x1080, 1600x1200, 1680x1050, 1400x1050, 1600x900, 1280x1024, 1440x900, 1280x960, 1366x768, 1360x768, 1280x768, 1280x720, 1024x768, 800x600, 848x480, 640x480 API: EGL v: 1.5 platforms: device: 0 drv: vmwgfx device: 1 drv: swrast gbm: drv: vmwgfx surfaceless: drv: vmwgfx x11: drv: vmwgfx inactive: wayland API: OpenGL v: 4.5 compat-v: 4.1 vendor: vmware mesa v: 25.0.7-0ubuntu0.24.X.X glx-v: 1.4 direct-render: yes renderer: SVGA3D! build: RELEASE! LLVM! device-ID: 15ad:0405 memory: 1000 KiB unified: no API: Vulkan v: 1.3.275 layers: 3 device: 0 type: cpu name: llvmpipe (LLVM 20.1.2 256 bits) driver: N/A device-ID: 10005:0000 surfaces: xcb,xlib Audio: Device-1: Intel 82801AA AC97 Audio vendor: Dell driver: snd_intel8x0 v: kernel bus-ID: 00:05.0 chip-ID: 8086:2415 class-ID: 0401 API: ALSA v: k6.14.0-37-generic status: kernel-api tools: alsactl,alsamixer,amixer Server-1: PipeWire v: 1.0.5 status: n/a (root, process) with: 1: pipewire-pulse status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin tools: pactl,pw-cat,pw-cli,wpctl Network: Device-1: Intel 82540EM Gigabit Ethernet driver: e1000 v: kernel port: d020 bus-ID: 00:03.0 chip-ID: 8086:100e class-ID: 0200 IF: enp0s3 state: up speed: 1000 Mbps duplex: full mac: XX:XX:XX:XX:XX:XX IP v4: 10.0.X.X/24 type: dynamic noprefixroute scope: global broadcast: 10.0.X.X IP v6: fd17:625c:f037:2:88a0:7cd2:9aaa:e7ae/64 type: temporary dynamic scope: global IP v6: fd17:625c:f037:2:ff19:3433:3e6e:5bd8/64 type: dynamic mngtmpaddr noprefixroute scope: global IP v6: fe80::6bfb:4713:de6e:d42f/64 type: noprefixroute scope: link Device-2: Intel 82371AB/EB/MB PIIX4 ACPI type: network bridge driver: piix4_smbus v: N/A modules: i2c_piix4 port: N/A bus-ID: 00:07.0 chip-ID: 8086:7113 class-ID: 0680 WAN IP: 103.7.X.X Bluetooth: Message: No bluetooth data found. Logical: Message: No logical block device data found. RAID: Message: No RAID data found. Drives: Local Storage: total: 20 GiB used: 9.59 GiB (48.0%) ID-1: /dev/sda maj-min: 8:0 vendor: VirtualBox model: VBOX HARDDISK size: 20 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s tech: N/A VBbde56385-fb30b9c6 fw-rev: 1.0 scheme: GPT SMART: no SMART Message: A mandatory SMART command failed. Various possible causes. Optical-1: /dev/sr0 vendor: VBOX model: CD-ROM rev: 1.0 dev-links: cdrom Features: speed: 32 multisession: yes audio: yes dvd: yes rw: none state: running Partition: ID-1: / raw-size: 19.5 GiB size: 19.02 GiB (97.57%) used: 9.59 GiB (50.4%) fs: ext4 block-size: 4096 B dev: /dev/sda3 maj-min: 8:3 label: N/A uuid: 1129ee60-6e37-4482-9768-ca59155d3272 ID-2: /boot/efi raw-size: 513 MiB size: 512 MiB (99.80%) used: 6.1 MiB (1.2%) fs: vfat block-size: 512 B dev: /dev/sda2 maj-min: 8:2 label: N/A uuid: 32B5-B257 Swap: Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no ID-1: swap-1 type: file size: 2.09 GiB used: 0 KiB (0.0%) priority: -2 file: /swapfile Unmounted: ID-1: /dev/sda1 maj-min: 8:1 size: 1024 KiB fs: N/A label: N/A uuid: N/A USB: Hub-1: 1-0:1 info: full speed or root hub ports: 12 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 chip-ID: 1d6b:0001 class-ID: 0900 Device-1: 1-1:2 info: VirtualBox USB Tablet type: HID driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 power: 100mA chip-ID: 80ee:0021 class-ID: 0300 Hub-2: 2-0:1 info: full speed or root hub ports: 12 rev: 2.0 speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002 class-ID: 0900 Sensors: Src: lm-sensors+/sys Message: No sensor data found using /sys/class/hwmon or lm-sensors. Repos: Packages: pm: dpkg pkgs: 1975 libs: 1021 tools: apt,apt-get,aptitude pm: flatpak pkgs: 0 No active apt repos in: /etc/apt/sources.list Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 1: deb http://packages.linuxmint.com zena main upstream import backport 2: deb http://archive.ubuntu.com/ubuntu noble main restricted universe multiverse 3: deb http://archive.ubuntu.com/ubuntu noble-updates main restricted universe multiverse 4: deb http://archive.ubuntu.com/ubuntu noble-backports main restricted universe multiverse 5: deb http://security.ubuntu.com/ubuntu/ noble-security main restricted universe multiverse Processes: CPU top: 5 of 294 1: cpu: 29.1% command: firefox pid: 1678 mem: 538.9 MiB (13.7%) 2: cpu: 5.8% command: xorg pid: 913 mem: 92.9 MiB (2.3%) 3: cpu: 5.8% command: cinnamon pid: 1353 mem: 195.9 MiB (5.0%) 4: cpu: 3.2% command: firefox-bin pid: 1871 mem: 154.8 MiB (3.9%) 5: cpu: 3.0% command: firefox-bin pid: 1978 mem: 178.6 MiB (4.5%) Memory top: 5 of 294 1: mem: 538.9 MiB (13.7%) command: firefox pid: 1678 cpu: 29.1% 2: mem: 195.9 MiB (5.0%) command: cinnamon pid: 1353 cpu: 5.8% 3: mem: 181.0 MiB (4.6%) command: firefox-bin pid: 1987 cpu: 1.7% 4: mem: 178.6 MiB (4.5%) command: firefox-bin pid: 1978 cpu: 3.0% 5: mem: 154.8 MiB (3.9%) command: firefox-bin pid: 1871 cpu: 3.2% Info: Processes: 294 Uptime: 4m wakeups: 0 Init: systemd v: 255 target: graphical (5) default: graphical tool: systemctl Compilers: gcc: 13.3.0 alt: 13 Shell: Storage.sh (sudo) default: Bash v: 5.2.21 running-in: Storage.sh inxi: 3.3.31

inxi Results

System:
  Host: MintC-VirtualBox Kernel: 6.14.0-37-generic arch: x86_64 bits: 64
    compiler: N/A clocksource: tsc available: kvm-clock,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic
    root=UUID=1129ee60-6e37-4482-9768-ca59155d3272 ro quiet splash
  Desktop: Cinnamon v: 6.6.4 tk: GTK v: 3.24.41 wm: muffin v: 6.6.1
    dm: LightDM v: 1.30.0 Distro: Linux Mint 22.3 Zena base: Ubuntu 24.04 noble
Machine:
  Type: Virtualbox System: innotek GmbH product: VirtualBox v: 1.2
    VirtualBox-a44eae9d-498f-4567-b9aa-1b0ea42d97f7
    Chassis: Oracle Corporation type: 1 N/A
  Mobo: Oracle model: VirtualBox v: 1.2 N/A BIOS: innotek GmbH
    v: VirtualBox date: 12/01/2006
Memory:
  System RAM: total: 4 GiB available: 3.82 GiB used: 1.85 GiB (48.4%)
  RAM Report: message: No RAM data found.
PCI Slots:
  Message: No PCI Slot data found.
CPU:
  Info: model: 12th Gen Intel Core i5-12600KF bits: 64 type: MCP
    arch: Alder Lake gen: core 12 level: v3 note: check built: 2021+
    process: Intel 7 (10nm ESF) family: 6 model-id: 0x97 (151) stepping: 2
    microcode: 0xFFFFFFFF
  Topology: cpus: 1x cores: 6 smt:  cache: L1: 480 KiB
    desc: d-6x48 KiB! i-6x32 KiB L2: 7.5 MiB desc: 6x1.2 MiB L3: 120 MiB
    desc: 6x20 MiB
  Speed (MHz): avg: 3686 min/max: N/A cores: 1: 3686 2: 3686 3: 3686 4: 3686
    5: 3686 6: 3686 bogomips: 44236
  Flags: 3dnowprefetch abm adx aes apic arat arch_capabilities avx avx2
    bmi1 bmi2 clflush clflushopt cmov constant_tsc cpuid cx16 cx8 de f16c
    flush_l1d fma fpu fsgsbase fxsr ht hypervisor ibrs_enhanced invpcid
    lahf_lm lm mca mce md_clear mmx movbe msr mtrr nonstop_tsc nopl nx pae
    pat pcid pclmulqdq pge pni popcnt pse pse36 rdrand rdseed rdtscp rep_good
    sep sha_ni sse sse2 sse4_1 sse4_2 ssse3 syscall tsc tsc_known_freq vme
    xsave xtopology
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: ghostwrite status: Not affected
  Type: indirect_target_selection mitigation: Aligned branch/return thunks
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: reg_file_data_sampling status: Vulnerable: No microcode
  Type: retbleed mitigation: Enhanced IBRS
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass status: Vulnerable
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Enhanced / Automatic IBRS! PBRSB-eIBRS: SW
    sequence! BHI: SW loop, KVM: SW loop
  Type: srbds status: Not affected
  Type: tsa status: Not affected
  Type: tsx_async_abort status: Not affected
  Type: vmscape status: Not affected
Graphics:
  Device-1: VMware SVGA II Adapter driver: vmwgfx v: 2.20.X.X ports:
    active: Virtual-1 empty: Virtual-2, Virtual-3, Virtual-4, Virtual-5,
    Virtual-6, Virtual-7, Virtual-8 bus-ID: 00:02.0 chip-ID: 15ad:0405
    class-ID: 0300
  Display: server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X:
    loaded: vmware unloaded: fbdev,modesetting,vesa dri: vmwgfx gpu: vmwgfx
    display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1280x800 s-dpi: 96 s-size: 338x211mm (13.31x8.31")
    s-diag: 398mm (15.69")
  Monitor-1: Virtual-1 mapped: Virtual1 res: 1280x800 hz: 60 size: N/A
    modes: 1280x800, 4096x2160, 2560x1600, 1920x1440, 1856x1392, 1792x1344,
    2048x1152, 1920x1200, 1920x1080, 1600x1200, 1680x1050, 1400x1050,
    1600x900, 1280x1024, 1440x900, 1280x960, 1366x768, 1360x768, 1280x768,
    1280x720, 1024x768, 800x600, 848x480, 640x480
  API: EGL v: 1.5 platforms: device: 0 drv: vmwgfx device: 1 drv: swrast
    gbm: drv: vmwgfx surfaceless: drv: vmwgfx x11: drv: vmwgfx inactive: wayland
  API: OpenGL v: 4.5 compat-v: 4.1 vendor: vmware mesa
    v: 25.0.7-0ubuntu0.24.X.X glx-v: 1.4 direct-render: yes renderer: SVGA3D!
    build: RELEASE! LLVM! device-ID: 15ad:0405 memory: 1000 KiB unified: no
  API: Vulkan v: 1.3.275 layers: 3 device: 0 type: cpu name: llvmpipe (LLVM
    20.1.2 256 bits) driver: N/A device-ID: 10005:0000 surfaces: xcb,xlib
Audio:
  Device-1: Intel 82801AA AC97 Audio vendor: Dell driver: snd_intel8x0
    v: kernel bus-ID: 00:05.0 chip-ID: 8086:2415 class-ID: 0401
  API: ALSA v: k6.14.0-37-generic status: kernel-api
    tools: alsactl,alsamixer,amixer
  Server-1: PipeWire v: 1.0.5 status: n/a (root, process) with:
    1: pipewire-pulse status: active 2: wireplumber status: active
    3: pipewire-alsa type: plugin tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Intel 82540EM Gigabit Ethernet driver: e1000 v: kernel port: d020
    bus-ID: 00:03.0 chip-ID: 8086:100e class-ID: 0200
  IF: enp0s3 state: up speed: 1000 Mbps duplex: full mac: XX:XX:XX:XX:XX:XX
  IP v4: 10.0.X.X/24 type: dynamic noprefixroute scope: global
    broadcast: 10.0.X.X
  IP v6: fd17:625c:f037:2:88a0:7cd2:9aaa:e7ae/64 type: temporary dynamic
    scope: global
  IP v6: fd17:625c:f037:2:ff19:3433:3e6e:5bd8/64 type: dynamic mngtmpaddr
    noprefixroute scope: global
  IP v6: fe80::6bfb:4713:de6e:d42f/64 type: noprefixroute scope: link
  Device-2: Intel 82371AB/EB/MB PIIX4 ACPI type: network bridge
    driver: piix4_smbus v: N/A modules: i2c_piix4 port: N/A bus-ID: 00:07.0
    chip-ID: 8086:7113 class-ID: 0680
  WAN IP: 103.7.X.X
Bluetooth:
  Message: No bluetooth data found.
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 20 GiB used: 9.59 GiB (48.0%)
  ID-1: /dev/sda maj-min: 8:0 vendor: VirtualBox model: VBOX HARDDISK
    size: 20 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
    tech: N/A VBbde56385-fb30b9c6 fw-rev: 1.0 scheme: GPT
  SMART: no SMART Message: A mandatory SMART command failed. Various
    possible causes.
  Optical-1: /dev/sr0 vendor: VBOX model: CD-ROM rev: 1.0  dev-links: cdrom
  Features: speed: 32 multisession: yes audio: yes dvd: yes rw: none
    state: running
Partition:
  ID-1: / raw-size: 19.5 GiB size: 19.02 GiB (97.57%) used: 9.59 GiB (50.4%)
    fs: ext4 block-size: 4096 B dev: /dev/sda3 maj-min: 8:3 label: N/A
    uuid: 1129ee60-6e37-4482-9768-ca59155d3272
  ID-2: /boot/efi raw-size: 513 MiB size: 512 MiB (99.80%)
    used: 6.1 MiB (1.2%) fs: vfat block-size: 512 B dev: /dev/sda2 maj-min: 8:2
    label: N/A uuid: 32B5-B257
Swap:
  Kernel: swappiness: 60 (default) cache-pressure: 100 (default) zswap: no
  ID-1: swap-1 type: file size: 2.09 GiB used: 0 KiB (0.0%) priority: -2
    file: /swapfile
Unmounted:
  ID-1: /dev/sda1 maj-min: 8:1 size: 1024 KiB fs: N/A label: N/A uuid: N/A
USB:
  Hub-1: 1-0:1 info: full speed or root hub ports: 12 rev: 1.1
    speed: 12 Mb/s (1.4 MiB/s) lanes: 1 mode: 1.1 chip-ID: 1d6b:0001
    class-ID: 0900
  Device-1: 1-1:2 info: VirtualBox USB Tablet type: HID
    driver: hid-generic,usbhid interfaces: 1 rev: 1.1 speed: 12 Mb/s (1.4 MiB/s)
    lanes: 1 mode: 1.1 power: 100mA chip-ID: 80ee:0021 class-ID: 0300
  Hub-2: 2-0:1 info: full speed or root hub ports: 12 rev: 2.0
    speed: 480 Mb/s (57.2 MiB/s) lanes: 1 mode: 2.0 chip-ID: 1d6b:0002
    class-ID: 0900
Sensors:
  Src: lm-sensors+/sys Message: No sensor data found using /sys/class/hwmon
    or lm-sensors.
Repos:
  Packages: pm: dpkg pkgs: 1975 libs: 1021 tools: apt,apt-get,aptitude
    pm: flatpak pkgs: 0
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http://packages.linuxmint.com zena main upstream import backport
    2: deb http://archive.ubuntu.com/ubuntu noble main restricted universe multiverse
    3: deb http://archive.ubuntu.com/ubuntu noble-updates main restricted universe multiverse
    4: deb http://archive.ubuntu.com/ubuntu noble-backports main restricted universe multiverse
    5: deb http://security.ubuntu.com/ubuntu/ noble-security main restricted universe multiverse
Processes:
  CPU top: 5 of 294
  1: cpu: 29.1% command: firefox pid: 1678 mem: 538.9 MiB (13.7%)
  2: cpu: 5.8% command: xorg pid: 913 mem: 92.9 MiB (2.3%)
  3: cpu: 5.8% command: cinnamon pid: 1353 mem: 195.9 MiB (5.0%)
  4: cpu: 3.2% command: firefox-bin pid: 1871 mem: 154.8 MiB (3.9%)
  5: cpu: 3.0% command: firefox-bin pid: 1978 mem: 178.6 MiB (4.5%)
  Memory top: 5 of 294
  1: mem: 538.9 MiB (13.7%) command: firefox pid: 1678 cpu: 29.1%
  2: mem: 195.9 MiB (5.0%) command: cinnamon pid: 1353 cpu: 5.8%
  3: mem: 181.0 MiB (4.6%) command: firefox-bin pid: 1987 cpu: 1.7%
  4: mem: 178.6 MiB (4.5%) command: firefox-bin pid: 1978 cpu: 3.0%
  5: mem: 154.8 MiB (3.9%) command: firefox-bin pid: 1871 cpu: 3.2%
Info:
  Processes: 294 Uptime: 4m wakeups: 0 Init: systemd v: 255
  target: graphical (5) default: graphical tool: systemctl Compilers:
  gcc: 13.3.0 alt: 13 Shell: Storage.sh (sudo) default: Bash v: 5.2.21
  running-in: Storage.sh inxi: 3.3.31

Benchmark #131376 - Brand: Oracle VirtualBox Virtual Hard Disk