The Google Chrome OS has been making a lot of waves for its convenience. In this video, the convenience is further highlighted, as we are shown how to install the Google Chrome OS on a Flash drive. Now you can take the entire OS with you wherever you'd like to go. Putting a Bootable Lion Installation on a Flash Drive. This process has a few steps. First, make sure your USB drive is formatted for use with a Mac, then download the OS X Lion installer from the App Store and copy it to your flash drive. Finally, use your bootable flash drive to install Lion on your Mac.
Apple Mac OS X Lion is now available to general public. The Mac OS X 10.7 Lion is available for installation only from the Mac App Store. This guide will teach you how to create a bootable USB Flash drive of Mac OS X Lion 10.7 and install Lion from USB, rather than downloading it from Mac App Store on each and every Mac computer you own.
Despite of numerous great and awesome features, Mac OSX Lion 10.7 has a big flaw that it is not available in bootable USB or DVD right now. Every time you you want to install OSX Lion on a Mac you will need to download it from Mac App Store all over again. Thanks to the bootable USB method which eliminates the downloading of Mac OS X Lion for each and every device and lets you install Mac OS X Lion on any Mac.
Note: An official bootable USB of Mac OSX ion 10.7 will be available in August 2011 for $69. This method not only eliminates the wait for the official, it also saves you $40 (Mac App Store version costs $29).
Creating a bootable Mac OS X Lion 10.7 USB Flash drives requires medium level Mac knowledge, however, by following these simple instructions even a beginner should be able to install Mac OS X Lion via USB Flash Drive.
Why make a bootable Lion USB drive?
- You can perform a clean OS X Lion installation with the bootable USB drive
- The bootable Lion USB drive becomes a recovery disk with Disk Utility access, access to Time Machine backups, re-installation, and all other Recovery HD partition features
- You will have external media to recover and reinstall Lion in the event of total drive failure or some other catastrophe
Required Stuff
- Purchase and Download Mac OS X Lion from the App Store
- 4GB USB Flash drive (8GB recommended)
If you have arranged the above mentioned items, simply follow the detailed guide below to create a bootable Mac OS X Lion 10.7 USB Flash Drive…
Step 1 – Locate the Lion InstallESD.dmg file
Once the Lion downloading is complete, go to the Applications folder and find the Install Mac OS X Lion.app file you just downloaded;
Right click on the Install Mac OS X Lion.app file and select Show Package Contents;
Now go to Contents > SharedSupport directory. Locate the file named: InstallESD.dmg and copy it on your desktop.
Step 2 – Format The USB
- Before formatting, If you have any data on your USB drive then save it;
- Plug the USB flash drive into your Mac;
- Launch Disk Utility from Applications;
- Select the plugged USB from the Left pane on the Disk Utility and click on Partition tab;
- Select 1 Partition from the Volume Scheme dropdown menu;
- Input a name for the USB and Choose Mac OS Extended (Journaled);
- Now click on Options button at the bottom. Select GUID Partition Table and click OK. Now click on Apply at the bottom right to start formatting.
Step 3 – Make Mac OS X Lion Bootable USB
- Double-click on InstallESD.dmg (that you copied onto your Mac desktop) to mount the Lion disk image (mounted InstallESD.dmg should appear on Disk Utility application and desktop);
- Select the plugged USB from the Left pane on the Disk Utility and then go to Restore tab;
- Click and drag the IMac OS X Install ESD from the left pane and drop it in the Source field;
- Then Click and Drag the USB drive from the left pane and drop it in the Destination field;
- Make sure you have chosen the right USB drive, you don't want to format the wrong drive and then click on Restore button;
- This will restore the Lion 10.7 image to the USB Flash drive. Wait for the process to complete.
Step 4 – Boot Mac OS X Lion from USB
- Reboot your Mac with the USB drive plugged in.
- Hold down the alt/Option key on your keyboard when you hear the OS X start-up sound.
- Choose the USB Flash Drive from there to boot.
- Now follow the on screen instructions to install OS X Lion.
You can follow the Step 4 to install Lion on other Macs with the bootable USB you just created.
[via Lifehacker]
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Upgrading your Macbook is a very easy task if you are already running a previous version of Mac OS X. You just need to download the new OS Installer from the App Store and after that, it's just like a normal installer setup. But the problem comes, when your Mac OS got corrupted and you need to install a clean setup without having to access the App Store.
Arguably, Mac OS is a more stable and reliable OS as compared to Windows. It crashes less and gets fewer malware attacks as compared to windows. Therefore there are very few documentations regarding clean installation for Mac OS relative to Windows Reinstallation.
In this tutorial, I would try to cover up as much detail I could to help you Reinstall a Clean Mac OS on to your Macbook or iMac. I recommend you to use 16GB or higher USB drive. Also, make sure to backup all your files and data before you initiate the setup.
Watch Video Tutorial
Step One: Download macOS Installer files
You can download the Mac OS Installer file from App Store. Or, if you don't find the required OS on the App Store, then you can download the Mac OS Installer files from ISORIVER.
Step Two: Formatting Your USB Flash Drive
Apple Operating System Download
You can create a boot installer for macOS on Mac. If you are using a flash drive that already has data, be sure to back up all important files as you are about to erase everything in an instant.
Open search engine. Go to Applications > Utilities and open Disk Utility. You should see your flash drive in the External section of the left panel. After selecting it, click on the 'Erase' button at the top.
Choose a descriptive name (which you will use later) and be sure to select Mac OS Extended (Journaled) for this format. Finally, click on Erase and you will be done with this step.
Step Three: Creating a Bootable USB Using DiskMaker X
DiskMaker X is a user-friendly and reliable software for creating a bootable macOS USB disk. You can download DiskMaker X for free.
After Installing DiskMaker X, you need to change security permissions for the app to work without breaking.
Navigate to System Preferences > Security & Privacy > Privacy > Accessibility. To make changes, click the lock icon at the bottom and enter your credentials.
Then click on the Plus button, navigate to the Applications folder, select DiskMaker X, and click open. DiskMaker X should now appear on the list.
As soon as you start DiskMaker X, you will be asked to confirm the download of the macOS installer.
The following message shows one of the advantages of DiskMaker X, as it is possible to create multiple installation disks. This means that you can create multiple partitions on the USB drive and have different macOS installers for each partition.
If you prefer to create an installation disk, select 'Erase all disk'. Finally, confirm that you want to delete the entire contents of the USB drive.
DiskMaker will continue to create the disk in the background and update it while it works. After a few minutes, DiskMaker X will inform you that your startup disk is ready and will give you some instructions on how to use it.
After Installing DiskMaker X, you need to change security permissions for the app to work without breaking.
Navigate to System Preferences > Security & Privacy > Privacy > Accessibility. To make changes, click the lock icon at the bottom and enter your credentials.
Then click on the Plus button, navigate to the Applications folder, select DiskMaker X, and click open. DiskMaker X should now appear on the list.
As soon as you start DiskMaker X, you will be asked to confirm the download of the macOS installer.
The following message shows one of the advantages of DiskMaker X, as it is possible to create multiple installation disks. This means that you can create multiple partitions on the USB drive and have different macOS installers for each partition.
If you prefer to create an installation disk, select 'Erase all disk'. Finally, confirm that you want to delete the entire contents of the USB drive.
DiskMaker will continue to create the disk in the background and update it while it works. After a few minutes, DiskMaker X will inform you that your startup disk is ready and will give you some instructions on how to use it.
Step Four: Booting Your Mac From a USB Drive
Simply connect the USB drive you created to an open USB port on your Mac. Turn on the system or restart it if it is already on. Immediately press and hold the Option (Alt) key on the keyboard when it starts.
You should now see an option to select the USB drive as a boot disk. Once selected, the system will start from the USB drive and will be directed to the macOS utility screen.
Macbook Pro Operating System Download
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That's it for the tutorial If you face any issues or had any query then please let us know in the comment section below. You can also send us an email via the contact us page for personalized support.
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