To mount the EFI partition from this app, click on the appropriately-named 'Mount EFI' button in the left column. Then, in the page that comes up, click 'Mount EFI partition.' If you have multiple hard drives, it's the same as with EFI Mounter: choose the hard drive that OS X is currently booting from. Oct 14, 2018 Locate the partition with the letter B. This will allow you to access and change files in the EFI partition. An alternate (faster) approach is the following: 1- Mount the EFI partition to a free mount point: — Run command prompt as Administrator — Type “mountvol X: /s” (without the quotes, X being an unused mount point).
Mounting volumes on macOS can be done using Disk Utility.app. For some reason, Apple decided not to show EFI partitions (among others such as Preboot, Recovery, etc) in Disk Utility.app. In this article, I will show you how to mount these volumes using command line (Terminal).
Listing all volumes
Mount Efi Partition Mac App Update
To list all volumes (partitions), use diskutil list.
As you can see, there are 2 physical drives, both containing EFI partition.
Mount Efi Partition Osx
If you compare it to Disk utility.app, it is rather brief.
Mounting a volume
To mount a volume, use sudo diskutil mount DiskIdentifier|DeviceNode|VolumeName.
This will mount the volume to /Volumes/<VolumeName>. If this mount point is already in use, a number will be added at the end (e.g: /Volumes/EFI 1).
Mount Efi Partition Mac App Windows 10
The sudo command in the beginning is very import, omitting it causes error message like
Mounting a volume to specified mount point
You can mount a volume to a different mount point (directory) using -mountPoint option. Beware, target mount point must exist.
Unmounting a volume
Unmounting a volume is as easy as mounting a volume, use diskutil umount DiskIdentifier|DeviceNode|VolumeName.