SOLVED dd: /dev/disk1: Permission denied

[seojoseph]

Josephs-iMac: joseph$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Hard Drive 999.3 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *2.0 GB disk1
1: DOS_FAT_16 NO NAME 2.0 GB disk1s1

I am trying to reinstall freeNAS on a smaller 2GB SD card as opposed to a 16GB USB. So I run through the setup like its outlined in the documentation.

Josephs-iMac: joseph$ diskutil unmountDisk /dev/disk1

Unmount of all volumes on disk1 was successful

Perfect. That worked.

Josephs-iMac: joseph$ dd if=FreeNAS-9.2.0-RELEASE-x64.img of=/dev/disk1 bs=64k

dd: /dev/disk1: Permission denied

That didn't work. ;( I would love to have a .img file for the latest but I guess no one put that up. Also - I run the sudo before dd and nope. same issue.

 

[seojoseph]

Im was still having the issue but I figured it out: as in documentation: Some users have found that some brands of 2 GB USB sticks do not work as they are not really 2 GB in size, but changing to a 4 GB stick fixes the problem.