[Nexus One Q&A, Help & Troubleshooting] holtonhj:
I ran the runme.bat and everything seemed to run just fine, no errors. after reboot, I'm still at unroot. no SU permissions. BTW, I just want to root, not flash a custom ROM. Sorry I'm posting here. XDA wouldnt' let me add to the current thread about zergrush.

CODE:

---------------------------------------------------------------

Easy rooting toolkit (v4.0)

created by DooMLoRD

using exploit zergRush (Revolutionary Team)

Credits go to all those involved in making this possible!

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[*] This script will:

(1) root ur device using latest zergRush exploit (21 Nov)

(2) install Busybox (1.18.4)

(3) install SU files (binary: 3.0.3 and apk: 3.0.6)

(4) some checks for free space, tmp directory

(will remove Google Maps if required)

[*] Before u begin:

(1) make sure u have installed adb drivers for ur device

(2) enable "USB DEBUGGING"

from (Menu\Settings\Applications\Development)

(3) enable "UNKNOWN SOURCES"

from (Menu\Settings\Applications)

(4) [OPTIONAL] increase screen timeout to 10 minutes

(5) connect USB cable to PHONE and then connect to PC

(6) skip "PC Companion Software" prompt on device

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CONFIRM ALL THE ABOVE THEN

Press any key to continue . . .

--- STARTING ----

--- WAITING FOR DEVICE

adb server is out of date. killing...

* daemon started successfully *

--- creating temporary directory

mkdir failed for tmp, File exists

--- cleaning

rm failed for *, No such file or directory

--- pushing zergRush

720 KB/s (23060 bytes in 0.031s)

--- correcting permissions

--- executing zergRush

[**] Zerg rush - Android 2.2/2.3 local root

[**] (C) 2011 Revolutionary. All rights reserved.

[**] Parts of code from Gingerbreak, (C) 2010-2011 The Android Exploid Crew.

[+] Found a GingerBread ! 0x00000118

[*] Scooting ...

[*] Sending 149 zerglings ...

[+] Zerglings found a way to enter ! 0x10

[+] Overseer found a path ! 0x000151e0

[*] Sending 149 zerglings ...

[+] Zerglings caused crash (good news): 0x40119cd4 0x0054

[*] Researching Metabolic Boost ...

[+] Speedlings on the go ! 0xafd193a3 0xafd3908f

[*] Popping 24 more zerglings

[*] Sending 173 zerglings ...

[+] Rush did it ! It's a GG, man !

[+] Killing ADB and restarting as root... enjoy!

--- WAITING FOR DEVICE TO RECONNECT

if it gets stuck over here for a long time then try:

disconnect usb cable and reconnect it

toggle "USB DEBUGGING" (first disable it then enable it)

--- DEVICE FOUND

--- pushing busybox

1222 KB/s (1075144 bytes in 0.859s)

--- correcting permissions

--- remounting /system

--- checking free space on /system

0 KB/s (439 bytes in 1.000s)

--- Free space on /system : 12380 bytes

--- no cleanup required

--- copying busybox to /system/xbin/

2099+1 records in

2099+1 records out

1075144 bytes transferred in 0.503 secs (2137463 bytes/sec)

--- correcting ownership

--- correcting permissions

--- installing busybox

--- pushing SU binary

694 KB/s (22228 bytes in 0.031s)

--- correcting ownership

--- correcting permissions

--- correcting symlinks

--- pushing Superuser app

1169 KB/s (785801 bytes in 0.656s)

--- cleaning

--- rebooting

ALL DONE!!!

Press any key to continue . . .