Use the arrow keys to select either the Boot EFI boot. Entry (rEFInd) or the EFI Drive entry (Mac boot manager) from the list. If you don’t see an EFI Drive or Boot EFI boot. In the list, shut down and make sure the live USB flash drive is connected directly to your Mac. REFIt is a boot menu and maintenance toolkit for EFI-based machines like the Intel Macs. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. You can use it to boot multiple operating systems easily, including triple-boot setups with Boot Camp. The Mac OS X boot loader is located in /System/Library/CoreServices/boot.efi. When loaded by the firmware, it displays a dark grey Apple logo on the screen. Then it loads the Darwin kernel from disk, as well as the essential driver extensions.

Boot macOS, Windows, and Linux in UEFI or legacy mode on Mac or PC with UEFI or BIOS firmware Boot using UEFI firmware directly or CloverEFI UEFI firmware emulation Customizable GUI including themes, icons, fonts, background images, animations, and mouse pointers. Theme manager and theme repository at http://sourceforge.net/p/cloverefiboot/themes/.
In the EFI partition you have a folder EFI/Clover which has a boot file in it with other files/kexts needed to boot OS X. To this EFI folder, add a Linux folder and copy the Grub2 UEFI boot file here (I think this is right). I saw this in passing on one of the Linux sites when I was looking for something else so am not 100% sure this is correct.

At every opportunity, Apple touts the security advantages of controlling both software and hardware: it's why the “It just works” slogan has become synonymous with the company. Still, Apple now has to address an industry-wide issue that leaves a portion of Macs vulnerable to hacker attacks.

The Problem

The flaw, discovered by security researchers at Duo Labs, is in the EFI (Extensible Firmware Interface) firmware, which sits beneath the operating system. EFI is the BIOS replacement originally developed by Intel that aims to overcome the limitations of the PC BIOS. Due to the firmware's level of privileges, if a hacker can gain access to it then their attack cannot be detected. That changes with macOS 10.13 High Sierra, which contains a tool validating the authenticity of the firmware running on the Mac.

Download CleanMyMac X from MacPaw’s website and clean up to 500MB of junk data from your computer while enjoying all the features of the software without major limitations.

The vulnerability allowed the CIA, for example, to spy on targeted Mac users, as a so-called Vault 7 cache of secret CIA documents released by WikiLeaks show. The catch is that the flaw isn't new and seems to require physical access to the Mac in order to work.

What Does That Mean to Mac Users?

After analyzing 73,000 Macs currently in use, Duo Labs has discovered a discrepancy between the firmware versions they expected the machines to be running and the actual EFI version installed. That leaves a security hole in the system, because although users might have the latest OS version installed, if the EFI firmware is an older version, it lacks the latest fixes of known firmware issues.

From your Mac Desktop or Mac Notebook before executing the setup program. This section illustrates the device driver installation procedure for a computer running. Insert the Driver CD into the CD-ROM drive;and run the.dmg file to load drivers in the“ macinstall”folder 2. The installation page will be launched. As times changed and PC Pitstop grew, we transitioned to a software subscription model to not only provide better and more secure diagnostic and maintenance tests, but turn our focus towards computer security with PC Matic. Congratulations on your purchase of the Smart KM LinkPro, a USB file transfer cable. Nowadays, more and more people own more than two computers. The SVKMS2 2 Port USB Keyboard Mouse Switch Cable w/ File Transfer for PC and Mac® enables you to control two computer systems using a single keyboard and mouse set, and offers the ability to transfer files between the connected Windows® and/or Mac systems. Smart km link mac software installer.

Apple released EFI updates separately, but since 2015 the EFI update is bundled in the software update Apple has been pushing out to users. However, if you are running one of the 16 Mac models identified by Duo Labs, there is a chance that your system hasn’t received any EFI update at all: iMac 7,1 to 10,1, MacBook 5,1 and 5,2, MacBook Air 2,1 and more.

How You Can Check the EFI Firmware Version

You can check what EFI version your system is running by clicking on the Apple menu and selecting About This Mac > System Report > Hardware. In the hardware overview section macOS displays the Model Identifier, the Boot ROM version and the SMC version number your Mac is running.

You can compare that to the firmware update number Apple lists in a support document dedicated to EFI and SMC updates for Intel-based Mac computers. Apple has stopped updating that page since September 2017.

How to Update the Firmware

If the firmware version displayed in the hardware overview is older than that listed for your Mac, then download the firmware and apply the update. Or update the operating system to at least macOS 10.12.6 Sierra, because this will include all the necessary security updates and the correct firmware.

It's important to identify your Mac model, because that's how to correctly determine which firmware you’re on and how to install the necessary update. https://yellowtron.amebaownd.com/posts/15499815. macOS won't let you install firmware that's not developed for the model you are trying to update.

The problem is that macOS won't alert users if an EFI update has failed to install on the hardware. Therefore it’s important the user checks manually, since they won't be able to close the backdoor that hackers can access to eavesdrop or steal sensitive information, and neither can Mac optimization apps. While CleanMyMac, MacKeeper, CCleaner, OnyX and the like are highly capable apps for keeping your Mac clean, they cannot alert users about the EFI firmware vulnerability.

Unfortunately, the same goes for anti-malware apps such as MalwareBytes, due to the EFI's nature of operating beneath the operating system software. As a result we recommend spending a couple of seconds to ensure your Mac is secure by checking if it is running the latest firmware version and, if not, upgrading as soon as you can.

EFI vulnerability isn't just related to Apple. Duo Labs has said that it has chosen the Apple ecosystem as it offered the most consistent data when compared to Microsoft's Windows PCs running Intel chips. As demonstrated by hackers years ago, the EFI flaw has been present in Windows PCs, allowing hackers to exploit it and install ransomware.

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