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.
What you need to create a bootable installer
For Mac OS users the procedure is analogous – open the file menu by right-clicking on the TBM file and choose 'Information' option and select 'Open with program' option. From the submenu select an application and click on 'Change all' button. Step 2: Find and download proper software. Keven Westin Santos II is on Facebook. Join Facebook to connect with Keven Westin Santos II and others you may know. Facebook gives people the power to share.
- 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
Tbm Mac Os Catalina
- 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.
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:*
Spin and spell. Slots of vegas mobile casino. 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:
By Monroe Blanton, Life Cycle Engineering
Since the dawn of the mechanical revolution, companies have been searching for ways to manufacture more for less. In the past 20+ years companies have shifted from the “more is better” concept to “how can we be more profitable with what we have?” How can we reduce costly downtime losses and increase the profitability of the manufactured product? One fact that cannot be avoided with manufacturing machines, assembly lines, production equipment and tools is the need to be maintained in order to remain in good working condition.
In the beginning, there were PMs and PMs were good. Every week, month or year, a task was put into place that would improve the longevity of the machine, reduce the likelihood of a failure, and result in fewer money-grabbing breakdowns. Sounds great, right? But hold on… those regular, scheduled PMs come with a price tag of their own. Each time a task is performed, such as a filter changed, a pump or motor overhauled, or bearings lubricated, money is spent on replacement components, man hours, and often done during the available production time to perform the actions.
Predictive Maintenance (PdM) is a step up on the maintenance pyramid from preventive maintenance toward improved efficiency. Within the PdM strategy is the practice of Condition Based Maintenance (CBM). The concept here is to look, listen and feel the machines to know what needs to have service work and when. This does not mean wait until it breaks and fix it. What it does mean is to collect data while the equipment is running, establish threshold limits either from OEM information, vendors, or best practices, and schedule the maintenance activities accordingly. By doing so you will keep your finger on the pulse of the equipment and allow the maintenance staff to make sound judgments on when and what needs to be done. Now you are doing filter changes when the data says they need to be changed. Now pumps or motors are overhauled based on performance criteria and bearings are lubricated based on duty cycle. More advanced phases of CBM may warrant use of specialized predictive tools such as tribology, thermography and vibration monitoring. But don’t let those big words and expensive technologies get in the way of a basic CBM program.
Changing from a task-based PM program to a CBM program may be easier than you think. Many companies are bound to schedules. People like schedules because they help them to know when and where they should be. The key is to alter the task of the PM. Keep the PM but change it from performing the costly task into a simple inspection. Instead of changing a filter just because it is the first of the month, record the filter differential pressure gauge value and compare it to an established acceptable limit. That monthly filter change might not need to be changed for another two or three months.
Finding the key indicators that are linked to machine failures becomes intriguing. Once you establish a few key point indicators that identify preventive maintenance tasks, you cannot help yourself from looking for more. Simple temperature measurements or electrical current monitoring are easy ways to identify service-related events.
Tbm+ Mac Os X
Using CBM strategy is a easy way to convert from time-based to counter-based maintenance. With this technique, where applicable, you can keep the maintenance costs aligned with the production cost (especially in cases of production slow-down). Look for ways to count machine cycles while it is actually running, or an hour meter correlated to a laser flash lamp. Add a pneumatic counter to a cylinder stroke and you have instant base intervals to establish a CBM process. Record those intervals and the applicable data in your company’s CMMS system or even a log book if that is all you have. Set limits for how much is enough before performing a specific PM task.
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In no time, you will transition from a task-based PM program to an inspection-based program utilizing CBM practice to identify what needs to be scheduled and which tasks are not yet ready to be performed. Changing from a task-based PM program to a CBM program will enable you to maintain your equipment in good working condition with fewer disruptions and at a lower cost.
Monroe Blanton is a Reliability Technician with Life Cycle Engineering (LCE). Monroe has more than 33 years of experience in engineering installations, maintenance and repair. His expertise is in automated manufacturing control systems, robotics, laser welding, pneumatics, hydraulics, measurement test systems, fluid dynamics and power generation. You can reach Monroe at mblanton@LCE.com.
© Life Cycle Engineering, Inc.