Creating bootable DVDs from .iso by converting to .cdr first

Really good info. I had forgotten that burning an ISO does not make it bootable. Doing (above) this makes it possible to burn WIN7 etc to a disc that will boot and install on a PC and presumably with Bootcamp etc. Thanks.

Hi!

I was following your post, unfortunately my disk is still not bootable :/ .cdr, .iso , or even a disk with all files unpacked won't automatically boot, when I need it. Now I am stuck with an empty hard drive, still searching for solution.

This is the correct method for burning a bootable ISO. Excellent tutorial! For those that are still having issues, change the burn speed from fastest possible to 4 and it should work fine. this is the problem 95% of the time.

Just wanted to thank TedETGbiz for posting this! I was pulling my hair out for hours trying to figure out why the DBAN boot disk I burned on my Mac would not boot up in the old Dell I am donating to charity. This post solved my problem and I am happily erasing all of my personal data from the old computer as I type. Thanks for the clear instructions, Ted.

Lance

Thanks for this!

A few slight updates for Yosemite:

1) Can't drag-and-drop into disk utility; need to use "convert" button. It asks for a file name.

2) To burn the image, select the image and push the big "burn" button.

-Dale

This post was helpful by suggesting using Disk Utility instead of the intuitive right-click from Finder.

But I was able to burn a bootable .iso file to CD-R from the Disk Utility without converting to .cdr format.

I'm running OSX 10.9.5 if that makes a difference.

What if I highlight the .iso file (in Finder), then right-click on it (or using the gear button) and choose the option Burn it to CD

Will this do the procedure successfuly or bring the same wrong result as in your first trial?

Thanks

Good afternoon,

I'm trying to create a bootable DVD, and have followed the above instructions, but still get, "this disk you inserted was not readable by this computer".

And I have set the speed to x4.

Is there a free app, which will do this?

Regards, R.

I am trying to repair a mac mini with a failed hard drive, the owner didn't save the recovery disk, but I was able to locate a dmg with Lion. I don't have another mac to use disk utility...can I make a bootable disk on a linux or windows PC to use in the mac mini?

Thanks a MILLION for your step-by-step solution!

I'd spent 6 HOURS doing internet searches AND over an hour with two Apple Tech Support personnel trying to update the firmware on my 500GB Samsung 840 Evo SSD in my Early 2011 MacBook Pro ("MBP") using Samsung's horribly incomplete instructionshttp://www.samsung.com/semiconductor/minisite/ssd/downloads/software/Samsung_SS D_Firmware_Update_Utility_User_Manual_Eng…. to burn a startup CD from their ISO firmware update download http://www.samsung.com/semiconductor/minisite/ssd/downloads/software/Samsung_SSD _840_EVO_EXT0DB6Q_Mac.iso.

I'd created 15+ USB startup drives and burned 6 CDs but none of them would be recognized when I held down the "C" key while restarting my MBP. Your solution was amazing since all the steps were CLEARLY spelled out... AND didn't require using Terminal or a PC !!!

AWESOME !!!

Now if I could find a similar simple step-by-step instructions for creating a startup USB drive... WITHOUT Terminal or having to use a PC. 8-)

Thanks for this info! Really saved me from a very disappointing holiday break.

don't work for me......get the old 'image not recognized' excuse.

Super tnx! 🙂

Worked perfectly. thx much!

THIS is the information that I needed! Thanks for posting this "how-to". Saved me a lot of frustration trying to get my installation disk to work.