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I copied my windows 7 cd to a ISO and trying to source the image onto my USB drive from OSX. So far it doesn't seem like it's possible with disk utility. Is there something else I can do to make this work?
Daniel Fischer
Posted 2011-02-12T02:49:19.553
Reputation: 1 401
6
Of course, the command line is always there to help.
Insert the USB flash drive and run the command diskutil list to find out the disk name, we'll use /dev/disk1 as an example.
Now unmount the disk using diskutil unmountDisk /dev/disk1
Now we are ready to copy the ISO to the device:
dd if=/path/to/Win7.iso of=/dev/disk1 bs=8192
John T
Posted 2011-02-12T02:49:19.553
Reputation: 149 037
1Not bootable for PC nor for Mac – Pierre de LESPINAY – 2015-04-25T18:18:46.300
Not bootable when performed with OSX 10.15.3 – norman_h – 2020-02-29T21:17:44.510
Awesome, I'll try this thank you. How do I mount it though? I think you missed that... I might be confused on terminology. Don't you have to mount to copy it? Also what about NTFS? – Daniel Fischer – 2011-02-12T03:03:13.833
If the disk is preformatted as NTFS it should still be able to read/write to it. You do not have to mount it as you are writing to the device. – John T – 2011-02-12T04:07:45.610
5Does not create a bootable USB drive. Wasted 2 hours of my night. – Meekohi – 2013-03-14T04:03:58.497