btasr.blogg.se - Os x lion iso to usb

Drag-drop the partition created on the USB to the text box next to Destination ( Figure H). Next, click the Image button next to Source and point to the DVD drive or ISO/DMG.

Launch Disk Utility and click on the partition to copy the install files to, then click the Restore tab.For this process, either the original DVD media or ISO/DMG images of the DVD are required. Since OS X (10.4, 10.5 and 10.6) were released as bootable DVDs, the process for these is slightly different and significantly slower, because the optical drives read data at a far slower rate than mechanical hard drives and solid-state drives. Simply repeat the steps in this section to create an installer for 10.7 and 10.8 ( Figure G). However, once it's completed, the partition will be ready to be used to install OS X. The process takes about 30 minutes, depending on the speed of the computer.You'll be prompted to confirm that the process will erase the contents of the partition by clicking Erase ( Figure F). Once the source and destination fields are selected, click the Restore button.Next, drag-and-drop the partition created on the USB to the text box next to Destination ( Figure E). Next, click the Image button next to Source and point to the InstallESD.dmg file recently copied to the desktop. Drill-down through the Contents | Shared Support directories and drag-drop the InstallESD.dmg to the desktop ( Figure D).This reveals the contents of the installer itself and makes navigating the structure possible.

Right-click the installer and select Show Package Contents from the context menu ( Figure C).

Apple OS X 10.7 (Lion), 10.8 (Mountain Lion) Certain versions of OS X will require a different procedure to complete. With the drive now partitioned properly, see the sections below to go about copying the media/installer contents to the drive.

Click the Options button, select the GUID Partition Table, and then click OK and Apply to commit the changes ( Figure B).

I suggest naming each partition with the OS X version that will occupy the space to make it easier to identify later ( Figure A).

Launch Disk Utility.app and partition the external drive as three separate partitions of 8 GB each.

However, the limit is really based on the total capacity of the drive to be used. Partitioning the driveįor the purposes of this article, I'll be creating three installers of OS X: 10.8, 10.9, and 10.10. Also, since many Macs include SD card readers, a large capacity SD card could be used instead of a USB drive as well. When considering the requirements, particularly the flash drive size and speed, I recommend accommodating a minimum of 8 GB per OS X installer and preferably supporting USB 3.0 specification for faster file transfers as opposed to USB 2.0, which will work admirably, but slower.