Split DMG File
$ hdiutil segment -o <outputfile> -segmentCount <num> [options] <imagefile> $ hdiutil segment -o <outputfile> -segmentSize <size> [options] <imagefile>
For example
$ hdiutil segment -o ~/Desktop/New -segmentSize 4000m ~/Desktop/My.dmg
Will be generated 4000 MB limit files, likes this New.dmg
, New.002.dmgpart
, New.003.dmgpart
, ...
Size Parameter
b - Byte
k - KB
m - MB
g - GB
Combine DMG File
$ hdiutil convert ~/Desktop/New.dmg -format UDRO -o My.dmg
If you are a loyal user of the GUI, you can use DMGConverter to complete the work. Of course, this tool has a lot of other functions.
Wiki
DMGConverter is a Disk Image (.dmg, .cdr, .iso) creation and conversion tool which is simple and easy to use.
It is a very useful tool for the collective processing of more than one file and every folder, and it can deal with all the fundamental processing with the drag & drop of the file/folder.
Download DMGConverter from MacUpdate
Convert cdr to iso Format
$ hdiutil makehybrid -iso -joliet -o My.iso My.cdr