Installer is an application included in macOS (and in its progenitors OPENSTEP and NeXTSTEP) that extracts and installs files out of.pkg packages. It was created by NeXT, and is now maintained by Apple Inc. Its purpose is to help software developers create uniform software installers. This directory contains binaries for a base distribution and packages to run on Mac OS X (release 10.6 and above). Mac OS 8.6 to 9.2 (and Mac OS X 10.1) are no longer supported but you can find the last supported release of R for these systems (which is R 1.7.1) here.Releases for old Mac OS X systems (through Mac OS X 10.5) and PowerPC Macs can be found in the old directory. Start quickly with the most recent versions of Word, Excel, PowerPoint, Outlook, OneNote and OneDrive —combining the familiarity of Office and the unique Mac features you love. Work online or offline, on your own or with others in real time—whatever works for what you’re doing. However, when Apple launched Mojave the Mac App Store changed, and these installers are no longer downloadable from the store - unless you are using an old version of macOS/macOS X. Visual Studio 2019 for Mac. Develop apps and games for iOS, Android and using.NET. Download Visual Studio for Mac. Create and deploy scalable, performant apps using.NET and C# on the Mac.
| Operating system | macOS |
|---|---|
| Type | Installer |
| Website | www.apple.com |
Installer is an application included in macOS (and in its progenitors OPENSTEP and NeXTSTEP) that extracts and installs files out of .pkg packages. It was created by NeXT, and is now maintained by Apple Inc. Its purpose is to help software developers create uniform software installers.
Installer launches when a package or metapackage file is opened. The installation process itself can vary substantially, as Installer allows developers to customize the information the user is presented with. For example, it can be made to display a custom welcome message, software license and readme. Installer also handles authentication, checks that packages are valid before installing them, and allows developers to run custom scripts at several points during the installation process.[1]
Installer package[edit]
Installer packages have the file extension .pkg. Prior to Mac OS X Leopard, installer packages were implemented as Mac OS X packages.[2] These packages were a collection of files that resided in folders with a .pkg file extension.[3][4] In Mac OS X Leopard the software packaging method was changed to use the XAR (eXtensible ARchiver) file format; the directory tree containing the files is packaged as an xar archive file with a .pkg extension.[5] Instead of distributing multiple files for a package, this allowed all of the software files to be contained in a single file for easier distribution with the benefit of package signing.
On your Mac, choose Apple menu System Preferences, then click Sharing. $19.95 From Concentrate Software Mac OS X 10.4 Intel/PPC Version 1.2 Full Specs. Download Now Secure Download. CBS Interactive does not encourage or condone the illegal. 
GoToMeeting is a screen-sharing solution for Mac (and many more devices) that makes it easy to collaborate with anyone remotely. In seconds, you can connect. To share a folder, right-click the folder’s icon, then choose “Share with.” Choose “Specific people,” then follow the onscreen instructions. You may need to disable the Internet Connection Firewall in the Advanced pane of the device’s properties. If you can’t disable the Internet Connection Firewall, make sure TCP port 445 is open. Mac to Mac Screen Sharing. You might not need a third-party app when you want to screen share.
See also[edit]
References[edit]
- ^'Software Delivery Guide - Specifying Install Operations'. Apple. Retrieved October 11, 2016.
- ^'Software Delivery Guide'. Apple. Retrieved March 15, 2015.
- ^'The Flat Package'. MacTech. Retrieved March 15, 2015.
- ^'OSX legacy packaging redux'. Matthew Brett. Retrieved March 15, 2015.
- ^'XAR NEW MacOS X 10.5 package format'. MacGeekBlog. Retrieved March 15, 2015.
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Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
Installous For Macbook
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Command (⌘)-R
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Installer For Macos Sierra
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
The Apple Store is situated at the center of Manhattan Village mall, 1 mile west of the 405 at the intersection of Rosecrans and Sepulveda. Parking: near main entrance off Sepulveda, near California Pizza Kitchen. Public Transit: LA Metro buses 125 & 232 and the Ocean Express shuttle. You must be at least 18 years old to be eligible to trade in for credit or for an Apple Store Gift Card. Not all devices are eligible for credit. More details are available from Apple’s Mac trade‑in partner and Apple’s iPhone, iPad, and Apple Watch trade‑in partner for trade-in and recycling of eligible devices. Apple reserves the right to refuse or limit the quantity of any device for any reason. In the Apple Store: Offer only available on presentation of a valid photo ID. Value of your current device may be applied toward purchase of a new Apple device. Offer may not be available in all stores. Some stores may have additional requirements. Apple store for mac computers. Mac App Store Mac App Store is the simplest way to find and download apps for your Mac. To download apps from the Mac App Store, you need a Mac with OS X 10.6.6 or later.
2. Decide whether to erase (format) your disk
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.