38 lines
1.8 KiB
Bash
Executable File
38 lines
1.8 KiB
Bash
Executable File
#! /usr/bin/env bash
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# Creates macOS boot disk.
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printf "%s\n" "macOS Boot Disk Setup"
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printf "%s\n" " 1. Insert a USB drive (8GB or higher)."
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printf "%s\n" " 2. Use Disk Utility to format as \"Mac OS Extended (Journaled)\"."
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printf "%s\n" " 3. Use Disk Utility to set the schema, if available, as \"GUID Partition Map\"."
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printf "%s\n" " 4. Use Disk Utility to label as \"Untitled\"."
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printf "%s\n" " 5. Run this script to install the OS and create a bootable USB drive."
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printf "\n%s\n" "macOS Boot Disk Usage:"
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printf "%s\n" " 1. Insert the USB drive, created above, into the machine to be upgraded."
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printf "%s\n" " 2. Reboot the machine."
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printf "%s\n" " 3. Press and hold the POWER key before the Apple logo appears."
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printf "%s\n" " 4. Select the USB boot disk from the menu."
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printf "%s\n" " 5. Use Disk Utility to delete and/or erase the hard drive including associated partitions."
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printf "%s\n" " 6. Use Disk Utility to create a single \"APFS\" drive."
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printf "%s\n" " 7. Install the new operating system."
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printf "\n%s\n" "macOS Boot Disk Recovery:"
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printf "%s\n" " 1. Start/restart the machine."
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printf "%s\n" " 2. Press and hold the POWER key before the Apple logo appears."
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printf "%s\n" " 3. Wait for the macOS installer to load from the recovery partition."
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printf "%s\n" " 4. Use the dialog options to launch Disk Utility, reinstall the system, etc."
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printf "\n%s\n" "Creating macOS boot disk..."
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if [[ ! -e "$MAC_OS_BOOT_DISK_CREATOR" ]]; then
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printf "%s\n" "ERROR: macOS installer does not exist: $MAC_OS_BOOT_DISK_CREATOR. Use System Preferences → Software Update to download."
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exit 1
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fi
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if [[ ! -d "$MAC_OS_BOOT_DISK_PATH" ]]; then
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printf "%s\n" "ERROR: Boot disk must be mounted at: $MAC_OS_BOOT_DISK_PATH."
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exit 1
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fi
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sudo "$MAC_OS_BOOT_DISK_CREATOR" --volume "$MAC_OS_BOOT_DISK_PATH" --downloadassets --nointeraction
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