OK. I don't know how much side chat anyone has has with jcase. He literally says the root method on his webpage i think he has registered in his xda profile. We also know he required Linux with the one and only root on the current dell ROM. He also posts on his site the basic method which he explains pretty clearly. Looks to have adb waiting for a device during the boot process to; I'm sure quickly mount something RW and script out a copy and execute a root. So, I know Linux treats hardware different and it may require less time to initiate communication with devices. Windows may not be showing you all the hardware/hardware ID's this thing reports it is so quickly during boot. It may not be possible to apply his method in a Windows environment. That said have you tried to get all the different types off hardware this thing reports that it is running on Linux and attempted a adb wait then immediate adb root method while its booting/rebooting?
how it is in the HP 1800la
init.debug.rc:
....
on charger
# basic networking for "adb root"
ifup lo
hostname localhost
domainname localdomain
#mount ext4 /dev/block/mmcblk0p7 /logs nosuid nodev barrier=1,data=ordered
mount ext4 /dev/block/mmcblk0p9 /data nosuid nodev barrier=1,data=ordered
mkdir /data/logs 0755 system system
mkdir /data/logs/modemcrash 0775 system system
mkdir /data/logs/stats 0775 system system
mkdir /data/logs/gps 0775 system system
mkdir /data/logs/aplogs 0775 system log
setprop persist.service.apklogfs.enable 1
setprop sys.usb.config adb
setprop ro.debuggable 1
how it is on the venue 8 JB-4.2.2
init.debug.rc:
....
on charger
# basic networking for "adb root"
ifup lo
hostname localhost
domainname localdomain
# mount data partition for get charger log
#mount ext4 /dev/block/mmcblk0p7 /logs nosuid nodev barrier=1,data=ordered
mount ext4 /dev/block/mmcblk0p9 /data nosuid nodev barrier=1,data=ordered
mkdir /data/logs/modemcrash 0775 system system
mkdir /data/logs/stats 0775 system system
mkdir /data/logs/gps 0775 system system
mkdir /data/logs/aplogs 0775 system log
setprop persist.service.apklogfs.enable 1
setprop sys.usb.config iadb
setprop ro.debuggable 1
how it is on the venue 8 JB-4.3
init.debug.rc:
....
on charger
on charger
# basic networking for "adb root"
ifup lo
hostname localhost
domainname localdomain
mount ext4 /dev/block/mmcblk0p7 /logs nosuid nodev barrier=1,data=ordered
mkdir /logs/modemcrash 0775 system system
mkdir /logs/aplogs 0775 system log
setprop sys.usb.config iadb
