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hdik(8) [osx man page]

hdik(8) 						    BSD System Manager's Manual 						   hdik(8)

NAME
hdik -- lightweight tool to attach and mount disk images in-kernel SYNOPSIS
hdik imagefile [options] DESCRIPTION
hdik is a lightweight tool that can be used to attach disk images in-kernel (i.e. without a user-land process to provide the backing store). Only a subset of disk images can be mounted in this manner including read/write disk images, UDIF disk images that use zlib compression, shadowed disk images, and sparse disk images. hdik is intended for use in situations where linking against the DiskImages framework is problematic or an extremely lightweight mechanism for attaching a disk image is needed. You can specify that the image should not be processed by Disk Arbitration by specifying the -nomount option. You can also specify that the image be mounted with a shadow file by using the -shadow option. The following argument must be specified: imagefile the disk image to be mounted. OPTIONS
-shadow [shadowfile] Use a shadow file in conjunction with the data in the image. This option prevents modification of the original image and allows read-only images to be used as read/write images. When blocks are being read from the image, blocks present in the shadow file override blocks in the base image. When blocks are being written, the writes will be redirected to the shadow file. If not specified, -shadow defaults to <imagename>.shadow. If the shadow file does not exist, it is created. -nomount Suppress automatic mounting of the image or partitions on it. This will result in /dev entries being created, but will not mount any volumes. -drivekey keyname=value Specify a key/value pair for the IOHDIXHDDrive object created (shows up in the IOKit registry of devices which is viewable with ioreg(8)). SEE ALSO
hdiutil(1), diskarbitrationd(8), diskutil(8), ioreg(8) Mac OS X 29 Apr 2003 Mac OS X

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hdik(8) 						    BSD System Manager's Manual 						   hdik(8)

NAME
hdik -- lightweight tool to attach and mount disk images in-kernel SYNOPSIS
hdik imagefile [options] hdik -e device DESCRIPTION
hdik is a simple tool that can be used to attach disk images directly to the DiskImages driver. The end result is functionally similar to passing -kernel to hdiutil(1)'s attach verb. hdik does not rely upon the presence of DiskImages or other high-level frameworks. The DiskImages driver only supports a selection of disk image formats: UDRW, UDRO, UDZO, ULFO, SPARSE (UDSP). It also supports shadow files. hdiutil(1)'s imageinfo verb indicates whether a particular image is kernel compatible. hdik requires root access to perform its functions. In the first form, an image to attach must be provided: imagefile path to the disk image file to attach. In its second form, hdik issues an eject command to the specified device. The argument is the full device node path (e.g. /dev/disk2). Any volumes mounted from the device must be unmounted first, or the command will fail. See umount(8). OPTIONS
-shadow [shadowfile] Use a shadow file in conjunction with the data in the image. This option prevents modification of the original image and allows read-only images to be used as read/write images. When blocks are being read from the image, blocks present in the shadow file override blocks in the base image. When blocks are being written, the writes will be redirected to the shadow file. If not specified, -shadow defaults to <imagename>.shadow. If the shadow file does not exist, it is created. -nomount Suppress automatic mounting of filesystems contained within the image. This will result in /dev entries being created, but will not mount any volumes. -drivekey keyname=value Specify a key/value pair for the IOHDIXHDDrive object created (shows up in the IOKit registry of devices which is viewable with ioreg(8)). SEE ALSO
hdiutil(1), diskarbitrationd(8), diskutil(8), umount(8), ioreg(8) macOS 20 Mar 2014 macOS
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