Cabinet files (Cab files) are compressed archive files commonly used to deliver software installation files to a user's computer. These files are also used to make delivery times. Get more done with the new Google Chrome. A more simple, secure, and faster web browser than ever, with Google’s smarts built-in.

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Dec 21, 2020 • Filed to: Solve Mac Problems • Proven solutions

A Universal Serial Bus or USB drive, also known as a flash drive is a portable data storage device that includes a memory which includes a USB interface. It is typically removable and much smaller than an optical disc. Any sort of data can be stored in this device. The drives are available in various sizes and if we talk about storage, the 2TB(Tera-Byte) flash drives in terms of storage capacity are the largest ones available in the market.

Today, these drives are one of the most consumed used devices in the world. Thanks to their portable nature, affordability, and compatibility, USB drives are being used to send and receive endless information across a surplus of networks and platforms all around the globe. This small tool has opened the world to a stream of limitless options for storing, transferring, copying data, and much more. One of them includes Booting the Mac from such a device.

Part 1. Reasons for Mac Boot from USB:

Booting the Mac from USB in a way gives the power back to the user. The likeliest of the reason for choosing the boot from the USB method is that your Mac won't start which denies the user access to the computer. Using an external source like the USB drive helps the user get around the problem. It provides the user access to the contents of the internal drive, assuming the data is safe and not corrupted. It also helps to repair the Mac disk with Disk Utility and other tools. Here are the top reasons why the user should choose to Boot Mac from USB:

• Allows the user to install a different version of macOS.
• It allows the user to test a new version before you decide to upgrade.
• Allows risk-free testing of the Beta version.
• Faster and efficient.
• By installing older versions through USB, it permits certain Apps to run which are not compatible with the latest macOS.

Part 2. Preparations for Booting Mac from USB:

To ensure a risk-free procedure certain measure should be taken:

• The user should buy a name-brand flash drive.
• The USB should contain 16-32GB of free space.
• The user should scan the flash drive with some reputable Anti-Virus software.
• The user should check to see what size of ports they have on the Mac. A 12' Mac only contains a single C-Type port.

• Make sure to purchase the C port flash drive to avoid any inconvenience.

• It is recommended that the user should go with a USB 3.0 supported drive, with a size of 16GB to ensure a swift transfer of data.
• The USB drive should be formatted with a supported GUID partition.
• It should contain an OS X installer or a usable operating system to work with.

Part 3. How to Create Bootable USB on Mac:

There are a few general guidelines that can help get your machine started which are mentioned above, regardless of the OS the user prefers.

Here are the methods to create a bootable USB drive on Mac.

• Creating a Bootable USB Using Terminal.
• Create a Bootable drive with the help a third party compression software, which is available for free.

Creating a Bootable USB Using Terminal:

The terminal is the default gateway to the command line on a Mac. It is just like the Command Prompt feature works for MS Windows. The Terminal feature ensures a hassle-free experience for the Mac user without the conventional pointing and clicking, the user just has to type the commands and the computer does the rest. The user can find Terminal in the Applications>Utilities folder or it can be checked in the finder utility.

Using the Terminal feature is the most simple way to create the bootable USB drive. The user just needs to follow one easy step which is renaming the MyVolume portion of the command with the name of the drive. The name of the drive can be changed using the Disk Utility of Mac.

Here are the steps required after opening the Terminal feature to create a bootable USB drive.

• Copy and paste the command which is suited for the version of the operating system into the Terminal window.
• The command for macOS Mojave is as follows:

sudo /Applications/InstallmacOSMojave.app/Contents/Resources/createinstallmedia --volume/Volumes/MyVolume

• Press the Return key.
• Enter the password.
• Confirm to erase the USB drive by typing Y followed by the Return key.
• The terminal will erase all the data inside the drive and create the bootable USB drive.

If there is a need to install a different version of the operating system then the user just has to replace the above-underlined command with their desired version of OS. For example, if the user wants to install Mac OS Sierra instead of Mojave then they would have to replace 'Mojave.app' with 'Sierra.app' inside the command line.

Part 4. How to Boot Mac from USB Media:

After creating a bootable USB drive, the user simply needs to plug the created drive into the open port on the Mac. Here are the steps to boot Mac from the USB flash drive:

• Power on the system.
• Press and hold the Option (Alt) key on the keyboard when the computer starts.
• Select the USB drive as a startup disk when the option appears.

• The system will start the boot process off the USB drive.
• Install the operating system from the macOS utilities.
• Data can be restored by using the Time-Machine backup option.

Part 5. How to Recover Data from Unbootable Mac:

The Mac becomes unbootable when the BIOS which is a firmware that is used to perform hardware initialization during the booting process fails to recognize the startup process. It usually happens when there is a failed system update, system crash, damaged MBR, or when the drive becomes corrupt.

Recoverit Mac Data Recovery tool is the most efficient option to recover all the lost data when Mac becomes unbootable. Developed by Wondershare, Recoverit is one of the most preferred recovery tools in the world. The tool provides an instant preview of what is recovered after a detailed scan. It allows you to connect almost every type of portable device and recover data from them. Data can be restored by performing the recovery and repair process. The process involves the installation of the Recoverit software that offers users the chance to get back the important data that they had lost.

First of all, the user is required to download the Recoverit software on the Mac system from the official website. Here are the following step required to recover data from an unbootable computer:

• Installation: Please Install Recoverit by clicking on the icon.
• Select the folder: Select the 'Recover from Crash Computer' option.
• Initiate Recovery Process: Click on 'Start' for the recovery process to launch.

• Create Bootable Drive: Select the 'Create USB bootable drive' option and click on 'Create'.

• A pop up will appear that will prompt the user to format the USB drive.
• Format the Drive: Click on 'Format' Now.
• The process will start that will create a bootable flash drive.

• Recover Data: After the boot is completed, click on the 'View Guide' option to recover data.

• Start Recoverit: Launch the Recoverit software again.
• Recover Data: Scan the drives for lost data.

All hope gets lost when the computer becomes unbootable and the data gets deleted. Recoverit recovery software is the most convenient program when it comes to retrieving lost data from the computer.

Conclusion:

Installing the macOS from a USB flash drive gives the user an instant solution when the Mac installer due to some reason refused to work. The method to create a bootable drive is easier than it sounds. Now, you know what to do whenever you want to upgrade your macOS from a bootable external source by following different methods to ensure a safe and hassle-free process. If you lose valuable data when the Mac becomes unbootable then you can easily recover the lost files by using the Recoverit recovery software. Recoverit guarantees data recovery in no time.

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CAB (or Cabinet) is an archive file format for Microsoft Windows that supports lossless data compression and embedded digital certificates used for maintaining archive integrity. Cabinet files have .cab file name extensions and are recognized by their first 4 bytes MSCF. Cabinet files were known originally as Diamond files.

CAB file is a compressed archive which supports DEFLATE , Quantum, and LZX compression. CAB files are used by windows installation engines such as Setup API, device installer and advpack.

CAB files typically contain drivers, system files and other Windows components. The installation engine extracts these files for use in the set up of various software and hardware.

For a number of years, Microsoft has used .cab files to compress software that was distributed on disks. Originally, these files were used to minimize the number of floppy disks shipped with a product. Today, .cab files are used to reduce the file size and the associated download time for Web content that is found on the Internet or on corporate intranet servers.

One file in the cabinet is typically an information (.inf) file, which provides further installation information. The .inf file may refer to files in the .cab as well as to files at other URLs.

Each file compressed in a .cab file is stored completely within a single folder. A .cab file may contain one or more folders or portions of a folder. So, even if a compressed file does not fit in one .cab file, it is placed in one folder that spans multiple .cab files. Such a series of .cab files form a set. Each .cab file contains name information for the logically adjacent .cab files.

A .cab file can be digitally signed like an ActiveX control. A digital signature provides accountability for software developers. The signature associates a software vendor's name with a given file. A signature can be applied to a .cab file using Authenticode technology.

Open/Extract CAB/Cabinet File on Windows

You can use Windows built-in System Configuration Utility (msconfig.exe) to extract CAB/Cabinet file.

• Start -> Run
• Type: msconfig.exe
• Press Enter
• Click 'Expand File...' at tab General
• Click 'Browse From...' to choose CAB/Cabinet file
• Click 'Browse To...' to choose folder to save the restored file
• Click 'Expand'
• Done

Alternatively, You can install an all-in-one archive compression software. Easy 7-Zip opens/extracts CAB/Cabinet file easily on Windows. The Easy 7-Zip was developed based on 7-Zip. 7-Zip is a famous open source file archiver. The Easy 7-Zip is an easy-to-use version of 7-Zip. The open source freeware keeps all features of 7-Zip and adds a few useful features that makes the software more user-friendly.

Easy 7-Zip works on Windows 10/8.1/8/7/Vista/2008/2003/XP/2000 (both 32-bit and 64-bit compatible).

1. Free Download Easy 7-Zip
2. Install Easy 7-Zip by step-by-step instructions
3. The installation will associate CAB with Easy 7-Zip automatically
4. Double-click on CAB file to open CAB/Cabinet file with Easy 7-Zip

You will see files or folders within the CAB/Cabinet file then, click button Extract to extract the CAB/Cabinet file.

5. Alternatively, Right-click on CAB/Cabinet file on Windows Explorer

And then, choose Extract files..., Extract Here, or Extract to 'folder' to extract the CAB/Cabinet file.

6. Done

Easy 7-Zip Download Links:

You can try other alternative freeware that opens/extracts CAB/Cabinet file on Windows. For example:

• PeaZip
• TUGZip
• B1 Free Archiver
• IZArc
• Universal Extractor
• Bandizip
• Bitser

Open/Extract CAB/Cabinet File on Mac

B1 Free Archiver opens/extracts CAB/Cabinet file on Mac. B1 Free Archiver is a free software for creating archive folder and extracting archive file. B1 Archiver works on all platforms - Windows, Linux, Mac and Android. The freeware supports most popular formats including CAB/Cabinet.

B1 Free Archiver is compatible with:

• Mac OS X 10.9 Mavericks
• Mac OS X 10.8 Mountain Lion
• Mac OS X 10.7 Lion
• Mac OS X 10.6 Snow Leopard

Alternative freeware that opens/extracts CAB/Cabinet file on Mac.

• Keka
• The Unarchiver

Open/Extract CAB/Cabinet File on Linux

You need to install cabextract. cabextract extracts files from Microsoft cabinet (.cab) archives or executable cabinet.

Install cabextract on CentOS and Fedora

Install cabextract on Debian and Ubuntu

Cab Counselor Mac Os X

To extract/unpack a CAB file, type:

To extract CAB file to specified directory, type:

Cab Counselor Mac Os 11

cabextract Options:

• -v --version print version / list cabinet
• -h --help show this help page
• -l --list list contents of cabinet
• -t --test test cabinet integrity
• -q --quiet only print errors and warnings
• -L --lowercase make filenames lowercase
• -f --fix fix (some) corrupted cabinets
• -p --pipe pipe extracted files to stdout
• -s --single restrict search to cabs on the command line
• -F --filter extract only files that match the given pattern
• -d --directory extract all files to the given directory

Cab Counselor Mac Os X