Bootable external hard drive mac snow leopard

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Installing Snow Leopard onto an External Hard Drive

I think you should have mentioned that in your initial post. Just curious, but would you need to completely erase other data from the external hard drive or usb before using it to install the operating system? Or is it okay if I leave my other files on the external hard drive, will it still install my OS as per the instructions above?

Clone bootable Apple Mac Hard Drive from Disk Utility Mac OS Sierra 2017

I have a macbook air. A solution without an external USB drive to partition.


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Requires you doing a fresh install at some point of Tiger or Leopard before updating to Snow Leopard. I happened to have just done a fresh install a few weeks ago. It requires partitioning a small portion of the Mac hardrive so you have a 10 GB partition setup as explained in the above tutorial. In disk utility on restore just set the dmg as source and drag your new 10gb partition as destination. Hey… So I tried to boot my mac using my usb and it wouldnt work… The disk never showed up on the boot screen.

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I pressed the refresh button like times too and it was no luck for me.. Just a quick tip! Hi, When i do this i get up to the step of restoring but when i press restore it comes up with a message saying restore failure — could not validate sizes — operation not permitted. Is this normal, or did something definitely go wrong? My files all seem to be there and my applications are running fine so far, I just have no idea where all of that free space could have come from.

Holding Option key is not working during startup. Actually, all other shortcut keys are not working. I manually set the boot by bless command but still nothing happened. Name required. Mail will not be published required.

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    April 4, at April 8, at 7: Chubs says: August 28, at 3: Pat says: April 8, at Peter says: April 17, at 4: May 1, at 8: Michael says: May 24, at 3: Olivia says: May 25, at 2: June 29, at 1: July 9, at July 21, at 7: August 21, at 4: Dvulikiy says: Golden Rule - You cannot install any OS older than the machine you are installing it on. To circumvent this restriction use another method: Format the external drive: Open Disk Utility and format the external drive. Click the Partition tab Under the Partition Layout header click on the 2 Partition option in the drop-down menu.

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    One big partition and a second smaller one with at least 8 GB at the end. Use the options button to choose GUID partition table. To format the external drive finally, click the Apply button in the lower right-hand corner of the Disk Utility window. Locate a Snow Leopard disk image or DVD on the Mac If you're using a disk image, mount it to the desktop In the Disk Utility window, click the Restore tab in the external's drive's menu In the center of the window you'll see two boxes: Drag-and-drop the second partition of the external drive into the Destination box Drag-and-drop the Mac OS X Install Drive disk into the Source box At the bottom right-hand corner of the screen and click the Restore button Disk Utility will restore the OS X Install DVD or disk image to the external drive; this process may take anywhere from 20 minutes to an hour depending on how quick the Mac is.

    Installing on an external HD - Apple Community

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