Upgrade the NEXUS5 to 5.0 and try to get root.
The following applies to Mac system computers and NEXUS5 machines that have been rooted.
1. Download tool: Http://pan.baidu.com/s/1hq9ZsEw
Source: http://bbs.gfan.com/forum.php?mod=viewthread&tid=7535779
2. Maybe you think you need to install the driver, but I found it unnecessary, at least in the Yosemite success. Unzip the above tool directly to Mac
3.nexus Connect Mac, boot to FastBoot, then Mac interrupt Run tool in roott-mac.sh (chmod +x First, requires Administrator privileges)
4.root all right.
I probably confused, summed up a little, for Mac to Root this NEXUS5, only need to download CF-AUTO-ROOT-HAMMERHEAD-HAMMERHEAD-NEXUS5 This tool, other do not need to prepare anything,
Finally, I probably root only spent 10 seconds, thanks to foreign cattle write good tools!
NEXUS5 Upgrade 5.0.1 After Root method (using Mac)