Hdiutil attach /Applications/Install\ OS\ X\ Mavericks.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/esd Rm /Volumes/OS X Base System/System/Installation/Packages Hdiutil attach /Applications/Install\ OS\ X\ Yosemite.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/esd Hdiutil attach /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/esd Hdiutil convert /tmp/tmp_ -format UDTO -o /tmp/tmp_iso.iso Hdiutil detach /Volumes/OS\ X\ Base\ System
Rm /Volumes/OS\ X\ Base\ System/System/Installation/PackagesĬp -rp /Volumes/esd/Packages /Volumes/OS\ X\ Base\ System/System/InstallationĬp -rp /Volumes/esd/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/Ĭp -rp /Volumes/esd/BaseSystem.dmg /Volumes/OS\ X\ Base\ System/ Hdiutil attach /Applications/Install\ macOS\ Sierra.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/esdĪsr restore -source /Volumes/esd/BaseSystem.dmg -target /Volumes/iso -noprompt -noverify -erase Hdiutil attach /tmp/tmp_ -noverify -nobrowse -mountpoint /Volumes/iso Hdiutil create -o /tmp/tmp_iso.cdr -size 7316m -layout SPUD -fs HFS+J I don’t think I have any particular problems.
However, since the folder structure from OS X 10.7 Lion to OS X 10.12 Sierra is different from 10.13 High Sierra or later, the commands are slightly different, but if you use the script on this page, that will also be supported. The spelling of the command changes depending on the OS version, making it difficult to understand, but what you are doing is simple.
#Made dvd from cdr file mac iso
On this page, instead of executing multiple commands in “Terminal” to create an ISO file, you can easily create an ISO file by copying and executing a “shell script”.Īlso, I actually checked the operation of the created all ISO files with VMware and VirtualBox.īy the way, what the “shell script” does is roughly as follows.
#Made dvd from cdr file mac software
Compression rates of 10:1 or 20:1 yield little degradation in image quality.I think that the ISO file for macOS installation is often used with virtual environment software such as VMware and VirtualBox. Compression rates of 100:1 can be achieved, although the loss is noticeable at that level. JPEG involves a lossy compression mechanism using discrete cosine transform (DCT). JPEG is a joint standard of the International Telecommunications Union (ITU-T T.81) and the International Organization for Standardization (ISO 10918-1). JPG is a graphical file format for editing still images, it offers a symmetrical compression technique which is processor intensive and time consiming in both compression and decompression. The JPG file is a great format as it often manages to compress files to 1/10 of the size of the original file which is especially good for saving on bandwidth. The JPG format is often used in digital camera memory cards. The resultant 'lossy' file means that quality can never be recovered. JPG's are often used for web sites and email as they are generally smaller file sizes as they are lossy meaning that some image quality is lost when the JPG is compressed and saved. More information on the Coral Draw Package.It has however evolved over time from it's initial offering in January 1989 to the present day where it is a different beast to what was initially developed to include including support for color management and spot colors, and has a basic support for text. There is no publicly available CDR file format specification. They concluded that actually this was innacurate and developed a bunch of tools to allow users to import CDR files into MS Office 2003. In 2007 Microsoft took exception to the CDR format wrongly blaming it for some security vulnerabilities in it's Microsoft Office suite of products. It is used as the default format from the Corel Draw application which was first developed in 1987 by Michael Bouillon and Pat Beirne who were tasked with developing a vector based illustration program that Corel could package with their desktop publishing solutions. CDR was a file format developed by the Corel Corporation and is used primarily for Vector graphic drawings.