1. VirtualBox

  • Move the 19.53 GB macOS Tahoe.iso file to the D:\_Images\macOS folder.

  • Right-click the .iso file and select 7-Zip > Test archive.

  • Start VirtualBox 7.2.6.

  • Create a new virtual machine with the following settings.

*General > Identity*

VM Name                         macOS 26 Tahoe
OS                              Mac OS X
OS Version                      Mac OS X (64-bit)

*General > Features*

Shared Clipboard                Bidirectional
Drag-and-Drop                   Disabled

*System > Motherboard*

Base Memory                     8192 MB
Chipset                         ICH9
TPM Version                     None
Pointing Device                 USB Tablet
Features                        ■ I/O APIC
                                ■ Hardware Clock in UTC
                                ■ UEFI
                                □ Secure Boot

*System > Processor*

Number of CPUs                  4
Processing Cap                  100%
Features                        ■ PAE/NX
                                □ Nested VT-x/AMD-V

*System > Acceleration*

Paravirtualization Interface    Default
    Hardware Virtualization     ■ Nested Paging

*Display > Screen*

Video Memory                    128 MB
Number of Virtual Monitors      1
Scale Factor                    100%
Graphics Controller             VBoxVGA
    Features                    □ 3D Acceleration

*Storage*

Controller: SATA
    macOS 26 Tahoe.vdi          Hard Disk       SATA Port 0
                                                ■ Solid-state Drive
                                                □ Hot-pluggable

*Shared Folders*

Machine Folders
Name            Path    Access  Auto Mount      At
    C_DRIVE     C:\     Full    Yes

  • Close VirtualBox.

  • Enter the following commands at a Command Prompt.

    cd "C:\Program Files\Oracle\VirtualBox"
VBoxManage.exe modifyvm "macOS 26 Tahoe" --cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff
VBoxManage setextradata "macOS 26 Tahoe" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "iMac11,3"
VBoxManage setextradata "macOS 26 Tahoe" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0"
VBoxManage setextradata "macOS 26 Tahoe" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Iloveapple"
VBoxManage setextradata "macOS 26 Tahoe" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
VBoxManage setextradata "macOS 26 Tahoe" "VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 1

  • Start VirtualBox.

  • Start the macOS 26 Tahoe virtual machine.

  • Wait several minutes for the virtual machine to start up.

  • Select English.

  • Click →.

  • Select Disk Utility.

  • Click Continue.

  • Select VBOX HARDDISK Media.

  • Click Erase.

    Name            Untitled
Format          APFS
Scheme          GUID Partition Map

  • Click Erase to confirm.

  • Click Done.

  • Select Disk Utility > Quit Disk Utility.

  • Select Install macOS Tahoe.

  • Click Continue.

  • Click Continue to confirm.

  • Click Agree.

  • Click Agree to confirm.

  • Select the Untitled disk.

  • Click Continue.

  • Select Netherlands/Thailand for the country or region.

  • Click Continue.

  • Select Customize Settings.

  • Click the + button.

  • Select English (US).

  • Click Add.

  • Click Continue.

  • Select U.S. for the input source.

  • Click Add.

  • Select English (United Kingdom) for the dictation source.

  • Click Continue.

  • Click Not Now to skip accessibility features.

  • Click Continue.

  • Click Not Now to skip transferring data from another computer.

  • Click Set Up Later to skip signing in with an Apple ID.

  • Click Skip to confirm.

  • Click Agree.

  • Click Agree to confirm.

    Full name:              Delta
Account name:           delta
Password:               ********        Verify:         ********
Hint:                   Level 2

  • Click Continue.

  • Select Customize Settings.

  • Uncheck Enable Location Services on this Mac.

  • Click Continue.

  • Click Don’t Use to confirm.

    Time Zone:              Central European Standard Time          Indochine Time
Closest City:           Amsterdam - Netherlands                 Bangkok - Thailand

  • Click Continue.

  • Uncheck Share Mac Analytics with Apple.

  • Uncheck Share crash and usage data with app developers.

  • Click Continue.

  • Select the light appearance.

  • Click Continue.

  • Click Set Up Later to skip Screen Time.

  • Uncheck Enable Ask Siri.

  • Click Continue.

  • Select the Light look.

  • Click Continue.

  • Wait.

  • Close the Keyboard Setup Assistant.

  • Select Apple > Shut Down.

  • Click Shut Down to confirm.

  • Close VirtualBox.

2. Configuration

2.1. Computer name

  • Start System Preferences.

  • Select Sharing.

Computer Name:  vbox-mac-tahoe

  • Close System Preferences.

2.2. SSH Server

  • Start System Preferences.

  • Select Sharing.

  • Check Remote Login.

  • Choose Only these users.

  • Click the + button.

  • Select SMRU.

  • Click Select.

Administrators
Delta

  • Close System Preferences.

2.3. Updates

  • Type sudo softwareupdate -l and press Enter.

  • Type sudo softwareupdate -i -a and press Enter.

  • Wait.

  • Select Apple > App Store.

  • Select Updates.

  • Wait.

  • Close App Store.

2.4. Environment Variables

sudo cp -a /etc/profile /etc/profile.orig

  • Append the following lines to the /etc/profile file.

export DELTA_LOCATION='VirtualBox'
export DELTA_ROOM='VirtualBox'
export DELTA_SYSTEM_DISK=''
export DELTA_USER='IT'
export DELTA_WAKE_ON_LAN='xx:xx:xx:xx:xx:xx'
export DELTA_WARRANTY_EXPIRES='-'
export DELTA_WINDOWS_LICENSE_LABEL='-'

3. Configuration

3.1. Screen Sharing

  • Note: This setting is for Windows VNC Viewer remote session.

  • Start System Preferences.

  • Click Sharing.

  • Check Screen Sharing.

  • Click Computer Settings.

  • Check VNC viewers may control screen with password.

  • Type the password in the VNC viewers may control screen with password field.

  • Click OK.

  • Choose Only the users.

  • Make sure Administrators is in the list.

  • Close System Preferences.

3.2. SSH

3.3. Time Zone

  • Start System Preferences.

  • Select Date & Time.

  • Select the Time Zone tab.

  • Click the lock icon.

  • Type the password.

  • Click Unlock.

  • Select Bangkok - Thailand.

  • Click the lock icon to re-lock the settings.

  • Close System Preferences.

4. Map Network Share

  • Start Finder.

  • Select Go > Connect to Server.

  • Public$ share: Type smb://SMRU-SRV/Public$ for the Server Address.

  • Shared$ share: Type smb://SMRU-SRV/Shared$ for the Server Address.

  • Teams$ share: Type smb://SMRU-SRV/Teams$ for the Server Address.

  • Click Connect.

  • Click Connect to confirm.

  • Choose Registered User.

    Name:           SMRU\Visitor
Password:       ********
□ Remember this password in my keychain

  • Click Connect.

  • Do your thing.

  • Select SMRU-SRV > Eject.

  • Close Finder.