Hello
I have been trying to copy tails.iso onto a usb stick for some time. I follwed the documentation on:
https://tails.boum.org/doc/first_steps/manual_usb_installation/mac/index.en.html
Which worked up until it came to part 5. Do the copy..
cat tails-i386-0.17.1.iso > /dev/disk1 && sync
resulted in "Permission Denied" - no matter whether sudo was used or not - it always gave the same error after multiple different attempts at mounting the disk, rewriting the partition on the disk, etc
Eventually I found a wiki on another site which described - Using dd on an OS X System
diskutil unmountDisk /dev/disk1
Unmount of all volumes on disk1 was successful
dd if=FreeNAS-9.1.0-RELEASE-x64.img of=/dev/disk1 bs=64k
NOTE:if you get the error "Resource busy" when you run the dd command, go to Applications → Utilities → Disk Utility, find your USB thumb drive, and click on its partitions to make sure all of them are unmounted. If you get the error "dd: /dev/disk1: Permission denied", run the dd command by typing sudo dd if=FreeNAS-8.3.1-RELEASE-x64.img of=/dev/disk1 bs=64k, which will prompt for the root user's password.
The dd command will take some minutes to complete. Wait until you get a prompt back and a message that displays how long it took to write the image to the USB drive
I decided to try - : sudo dd if=tails.iso of=/dev/disk1
I had to first rename "tails-i386-0. 17.1.1.iso" to "tails.iso" as the terminal couldnt find the file with all those dots and a space.
After entering the admin password this command succeeded where cat && sync had failed.
my system is an os x mountain lion Macbook Air - new one.
I thought this may help a few people out..
Thanks
James