These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
We recommend that you keep up to date with security patches for your OS and any other relevant software that you are using. I'm on vacation. Can I pop into the Library and use your wireless network? Wireless access is available to all visitors during the Library's normal hours of operation. Proficient in MAC OS and MS Office for Macs Responsibilities include:. Installs hardware and peripheral components such as monitors, keyboards, printers and disk drives on users and/or users, via voice mail, e-mail or in-person communication Refers major hardware problems to service personnel or vendors as necessary Provide support for primarily MAC OS but have knowledge in Linux.
What you need to create a bootable installer
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- A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage
- A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan
Download macOS
- Download: macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra
These download to your Applications folder as an app named Install macOS [version name]. If the installer opens after downloading, quit it without continuing installation. To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server. - Download: OS X El Capitan
This downloads as a disk image named InstallMacOSX.dmg. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer.
The Multiagency Coordination System (MACS) and Emergency Operations Centers (EOCs) The primary function of the Multiagency Coordination System (MACS) is to coordinate activities above the field level (or incident level). In doing this, common functions of the MACS include: Situation Assessment Incident Priority Determination Critical Resource Acquisition and Allocation Policy. Parallels Inc., a global leader in cross-platform solutions, makes it simple for customers to use and access the applications and files they need on any device or operating system. We help businesses and individuals securely and productively use their favorite devices and preferred technology, whether it's Windows®, Mac®, iOS, AndroidTM, Chromebook, Linux, Raspberry Pi or the Cloud. Single Cable Simplicity Our customer favorite 10X camera with a built-in dual microphone array providing an easy USB 2.0 connection to any PC or Mac computer for web video conferencing simplicity.
Use the 'createinstallmedia' command in Terminal
- Connect the USB flash drive or other volume that you're using for the bootable installer.
- Open Terminal, which is in the Utilities folder of your Applications folder.
- Type or paste one of the following commands in Terminal. These assume that the installer is in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace
MyVolumein these commands with the name of your volume.
Big Sur:*
Catalina:*
Mojave:*
High Sierra:*
El Capitan:
* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument and installer path, similar to the way this is done in the command for El Capitan.
After typing the command:
- Press Return to enter the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- When prompted, type
Yto confirm that you want to erase the volume, then press Return. Terminal shows the progress as the volume is erased. - After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. Click OK to allow the copy to proceed.
- When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Big Sur. You can now quit Terminal and eject the volume.
Use the bootable installer
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon
- Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
- Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes.
- Select the volume containing the bootable installer, then click Continue.
- When the macOS installer opens, follow the onscreen instructions.
Intel processor
- Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
- Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.
- Release the Option key when you see a dark screen showing your bootable volumes.
- Select the volume containing the bootable installer. Then click the up arrow or press Return.
If you can't start up from the bootable installer, make sure that the External Boot setting in Startup Security Utility is set to allow booting from external media. - Choose your language, if prompted.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Learn more
A bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.
For information about the createinstallmedia command and the arguments you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:
The primary function of the Multiagency Coordination System (MACS) is to coordinate activities above the field level (or incident level). In doing this, common functions of the MACS include:
- Situation Assessment
- Incident Priority Determination
- Critical Resource Acquisition and Allocation
- Policy Support
- Coordination with other MACS Elements
- Coordination with Elected, Appointed, and Senior Officials
- Information Management and Common Operating Picture Maintenance
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The two most commonly used elements of MACS are Emergency Operations Centers (EOCs) and Multiagency Coordination (MAC) Groups. EOCs are the entity from which the coordination of information and resources to support incident management at the Incident Command Post (on-scene or field level activities) occurs. MAC Groups are policy setting entities typically comprised of agency administrators/executives, or their designees. Under the National Incident Management System (NIMS), neither an EOC nor a MAC Group has any direct incident command involvement and they will often be located some distance from the incident scene.
Contrary to popular belief, there is no requirement for EOCs to implement and organize around ICS. EOCs may be organized by:
- Major discipline (e.g., fire, law enforcement, or emergency medical services);
- Emergency support function (e.g., transportation, communications, public works and engineering, or resource support);
- Jurisdiction (e.g., city, county, or region); or,
- More likely, by some combination thereof.
Regardless, an EOC should be organized to facilitate effective incident coordination and support in accordance with applicable laws, policies, ordinances, statutes, etc., that govern incident management and coordination in the jurisdiction the EOC serves. It is this non-standard approach that makes it difficult to develop standard EOC training. For this reason, EMSI's seasoned cadre stands ready to help tailor EOC training to the unique needs and organization of your specific EOC. Our experience has found that this training is best conducted in a facilitated workshop format.
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Look to the right for an offering of MACS training but we recommend contacting us to talk about your EOC training needs.
