[Samsung Galaxy Player 4.0, 5.0] warfab:
Failed to root on my wife's Galaxy Player

Phone

Model: YP-G70

Firmware: 2.3.6 (Stock, ofcourse..)

Kernel v.: 2.6.35.7-G70DXKP6-CL887965

dpi@DELL179 #2

Build no.: GINGERBREAD.DXKP6

Computer

OS: Win7 32-bit Ultimate

---------------------------------------------------------------
Easy rooting toolkit (v1.0)
created by DooMLoRD
edited by Anthony Papousek (apapousek)
using exploit zergRush (Revolutionary Team)
Credits go to all those involved in making this possible!
---------------------------------------------------------------
[*] This script will:
(1) Root your device using the zergRush exploit
(2) Install Busybox (1.18.4)
(3) Install SU files (3.0.5)
[*] Before you 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
---------------------------------------------------------------
CONFIRM ALL THE ABOVE THEN
Connect your device
--- STARTING ----
--- Cleaning
rm failed for *, No such file or directory
--- Pushing zergRush"
69 KB/s (23052 bytes in 0.326s)
--- 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 ! 0x00025118
[+] Found a Samsung, running Samsung mode
[*] Scooting ...
[*] Sleeping a bit (~40s)...
[*] Waking !
[*] Sending 149 zerglings ...
[*] Sleeping a bit (~40s)...
[*] Waking !
[*] Sending 189 zerglings ...
[-] Hellions with BLUE flames !
--- 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
419 KB/s (1075144 bytes in 2.504s)
--- Correcting permissions
--- Remounting /system
mount: permission denied (are you root?)
--- Copying busybox to /system/xbin/
/system/xbin/busybox: cannot open for write: Read-only file system
--- Correcting ownership
Unable to chmod /system/xbin/busybox: No such file or directory
--- Correcting permissions
Unable to chmod /system/xbin/busybox: No such file or directory
--- Installing busybox
/system/xbin/busybox: not found
--- Pushing SU binary
failed to copy 'files\su' to '/system/bin/su': Read-only file system
--- Correcting ownership
Unable to chmod /system/bin/su: No such file or directory
--- Correcting permissions
Unable to chmod /system/bin/su: No such file or directory
--- Correcting symlinks
rm failed for /system/xbin/su, Read-only file system
link failed Read-only file system
--- Pushing Superuser app
failed to copy 'files\Superuser.apk' to '/system/app/./Superuser.apk': Read-only
file system
--- Cleaning
--- Rebooting
" Your device should now be rooted. "
" "
" It's time to update your su binary. "
" Open the Superuser app, go to Preferences (Menu\Preferences),"
" and hit Su Binary v3.X (3.0, in this case). When prompted, "
" update to the newest version of the su binary. "
" Congratulations, you've successfully rooted! "
" If something went wrong, pm apapousek on the XDA Forums"
" or email anthony@papousek.org "
Press any key to continue . . .

Update:

Workaround for me: I installed rj's custom kernel before rooting. Now wife's Galaxy Player is now rooted