[Android Q&A, Help & Troubleshooting] peteywhit:
Here is a "last_log.1" file that was located in \cache.ext4\cache\recovery from the Nandroid backup

__bionic_open_tzdata: couldn't find any tzdata when looking for America/Los_Angeles!
__bionic_open_tzdata: couldn't find any tzdata when looking for GMT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
Starting recovery on Thu Jan 1 00:00:07 1970
E:recovery filesystem table
E:=========================
E: 0 /mnt/sdcard vfat /dev/block/actj 0
E: 1 /system ext4 /dev/block/actc 0
E: 2 /cache ext4 /dev/block/acte 0
E: 3 /data ext4 /dev/block/actd 0
E: 4 /data_bak vfat /dev/block/actf 0
E: 5 /boot vfat /dev/block/actb 0
E: 6 /recovery vfat /dev/block/acta 0
E: 7 /misc emmc /dev/block/actb 0
E: 8 /mnt/sd-ext vfat /dev/block/mmcblk0p1 0
E: 9 /mnt/sd-ext vfat /dev/block/mmcblk0 0
E: 10 /tmp ramdisk ramdisk 0
E:
W:failed to mount /dev/block/mmcblk0p1 (No such file or directory); trying /dev/block/mmcblk0
E:failed to mount /mnt/sd-ext (No such file or directory)
E:Can't mount /mnt/sd-ext/factory_update_param.aml
I:Got arguments from /cache/recovery/command
locale is [en_US]
framebuffer: fd 4 (800 x 480)
installing_text: en (324 x 38 @ 411)
erasing_text: en (109 x 38 @ 312)
no_command_text: en (172 x 38 @ 312)
error_text: en (64 x 38 @ 312)
Command: "/sbin/recovery" "--wipe_data" "--locale=en_US"
bootdev=nand

W:failed to mount /dev/block/mmcblk0p1 (No such file or directory); trying /dev/block/mmcblk0
E:failed to mount /mnt/sd-ext (No such file or directory)

ro.g3.display=false
ro.im.keysounddefenable=true
ro.sf.hwrotation=0
ro.sf.lcd_density=160
ro.sf.hdmi_rotation=180
ro.sf.default_rotation=0
ro.adb.secure=1
ro.com.google.gmsversion=4.4_r3
ro.com.android.dateformat=MM-dd-yyyy
ro.com.widewine.cachesize=16777216
ro.net.config=0
ro.ota.server=http://ota.actions-semi.com/ainol_LG/
ro.ota.autorecovery=enable
ro.usb.descriptor=MID,P706,V1.0
ro.boot.mode=recovery1
ro.boot.bootdev=nand
ro.boot.serialno=A07DB369302BB10B
ro.boot.dvfslevel=0x7021
ro.wifi.signal.level.1=-70
ro.wifi.signal.level.2=-65
ro.wifi.signal.level.3=-60
ro.wifi.signal.level.4=-55
ro.wifi.channels=
ro.allow.mock.location=0
ro.board.platform=ATM702X
ro.build.id=KOT49H
ro.build.date=Mon Jun 23 20:26:03 HKT 2014
ro.build.date.utc=1403526363
ro.build.host=sz205
ro.build.tags=release-keys
ro.build.type=user
ro.build.user=peterguo
ro.build.display.id=VU100-user 4.4.2 KOT49H eng.peterguo.20140623.202513 release-keys
ro.build.product=Demo_86v_hd
ro.build.version.sdk=19
ro.build.version.release=4.4.2
ro.build.version.codename=REL
ro.build.version.incremental=eng.peterguo.20140623.202513
ro.build.description=VU100-user 4.4.2 KOT49H eng.peterguo.20140623.202513 release-keys
ro.build.fingerprint=WGI/VU100/86v_hd:4.4.2/KOT49H/eng.peterguo.20140623.202513:user/release-keys
ro.build.characteristics=tablet
ro.phone.dynamicoomadj=1
ro.config.low_ram=false
ro.config.overlay=1
ro.config.ringtone=Orion.ogg
ro.config.shutdown.screenoff=0
ro.config.quickboot=0
ro.config.alarm_alert=Cesium.ogg
ro.config.softopengles=0
ro.config.forcetabletui=1
ro.config.used_hw_vsync=1
ro.config.hdmi_secure_check=0
ro.config.notification_sound=Adara.ogg
ro.device.model=demo_86v_hd_cts
ro.secure=1
ro.battery.shutdowntemplevel=68
ro.bootdev=nand
ro.browser.ua=0
ro.browser.cid=tablet-android-digiin
ro.browser.maxtabs=8
ro.carrier=wifi-only
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.name=VU100
ro.product.board=atm7021a_demo_hd_cts
ro.product.brand=WGI
ro.product.model=VU100
ro.product.device=86v_hd
ro.product.locale.region=US
ro.product.locale.language=en
ro.product.pribrand=actions
ro.product.primodel=owlx1
ro.product.mtpdevice.PID=4e41
ro.product.ptpdevice.PID=4e43
ro.product.usbdevice.PID=fffe
ro.product.usbdevice.VID=10d6
ro.product.devicenumber=
ro.product.manufacturer=Digiin
ro.support.gpswithwifi=1
ro.support.unnormal_video=0
ro.baseband=
ro.bootmode=recovery1
ro.calendar.localaccount=disable
ro.hardware=gs702c
ro.launcher.swipe=enable
ro.launcher.allapp.landX=7
ro.launcher.allapp.landY=4
ro.launcher.allapp.portX=4
ro.launcher.allapp.portY=6
ro.launcher.config.cling=enable
ro.launcher.hotseat.landY=2
ro.launcher.hotseat.portY=2
ro.launcher.workspace.landX=6
ro.launcher.workspace.landY=5
ro.launcher.workspace.portX=6
ro.launcher.workspace.portY=5
ro.launcher.hideactivity=disable
ro.launcher.hotseatcellcount=7
ro.launcher.hotseatallappsindex=3
ro.opengles.version=131072
ro.recovery.wipe=false
ro.revision=0
ro.serialno=A07DB369302BB10B
ro.settings.config.hdmi=off
ro.settings.hotspot=false
ro.settings.support.ethernet=false
ro.settings.support.bluetooth=false
ro.settings.datausage=false
ro.settings.phonestatus=false
ro.settings.mobilenetworks=false
ro.settings.backuptransport=com.google.android.backup/.BackupTransportService
ro.shutmenu.restart=enable
ro.shutmenu.recovery=disable
ro.shutmenu.planemode=disable
ro.systemui.capture=enable
ro.systemui.volumekey=enable
ro.systemui.hidebutton=disable
ro.systemui.morebutton=disable
ro.camerahal.fpsdft0=30
ro.camerahal.fpsdft1=30
ro.camerahal.hangle0=50.0
ro.camerahal.hangle1=50.0
ro.camerahal.prevres0=VGA,HD
ro.camerahal.prevres1=QVGA,VGA
ro.camerahal.imageres0=VGA,2M,3M,5M
ro.camerahal.imageres1=QVGA,VGA
ro.camerahal.prevresdft0=VGA
ro.camerahal.prevresdft1=VGA
ro.camerahal.imageresdft0=2M
ro.camerahal.imageresdft1=VGA
ro.camerahal.configorientation=0
ro.dvfslevel=0x7021
ro.usbdevice.volumelabel=P706
ro.bootloader=gs702c-2014
ro.build_mode=CTS
ro.debuggable=0
ro.factorytest=0
ro.setupwizard.mode=OPTIONAL
ro.airplanemode.display=false
ro.soundrecorder.format=amr
ro.smartbacklight.minpwm=374
ro.smartbacklight.strength=100
ro.change_property.enable=true
drm.service.enabled=true
net.bt.name=Android
net.change=net.bt.name
hwui.render_dirty_regions=false
init.svc.healthd=running
init.svc.ueventd=running
init.svc.recovery=running
wifi.interface=wlan0
wifi.supplicant_scan_interval=120
dalvik.vm.checkjni=false
dalvik.vm.heapsize=128m
dalvik.vm.heapmaxfree=8m
dalvik.vm.heapminfree=512k
dalvik.vm.dexopt-flags=v=n,o=v
dalvik.vm.heapstartsize=5m
dalvik.vm.heapgrowthlimit=64m
dalvik.vm.stack-trace-file=/data/anr/traces.txt
dalvik.vm.heaptargetutilization=0.75
system.ctl.recoverywhencrash=4
system.ram.total=1024
persist.sys.usb.config=mtp,adb
persist.sys.dalvik.vm.lib=libdvm.so
persist.sys.shutok=init
persist.sys.timezone=America/Los_Angeles
persist.sys.strictmode.disable=true
persist.sys.extra_features=0
persist.demo.hdmirotationlock=true
persist.radio.mediatek.chipid=0x6620
persist.service.adb.enable=0
camcorder.settings.xml=/data/camera/camcorder_profiles.xml

storage integrality checking, please wait...
checking failed, error=-1
Formatting /data...
backup_dataUserfile
fopen_path /system/etc/excluded_recovery fp=0x7755c
copy_file /data/data/com.actions.sensor.calib/files/gsensor_calib.txt /cache/data/com.actions.sensor.calib/files/gsensor_calib.txt
E:open =/cache/data/com.actions.sensor.calib/files/gsensor_calib.txt fail
copy_file /data/data/com.test.pcbatest/pcba_start.txt /cache/data/com.test.pcbatest/pcba_start.txt
E:cpy to /cache/data/com.test.pcbatest/pcba_start.txt file len=0
Creating filesystem with parameters:
Size: 6647971840
Block size: 4096
Blocks per group: 32768
Inodes per group: 8128
Inode size: 256
Journal blocks: 25360
Label:
Blocks: 1623040
Block groups: 50
Reserved block group size: 399
Created filesystem with 11/406400 inodes and 54472/1623040 blocks
warning: wipe_block_device: Wipe via secure discard failed, used discard instead

W:mount data_bak for ext4
E:failed to mount /data_bak (No such file or directory)
Formatting /cache...
Creating filesystem with parameters:
Size: 536870912
Block size: 4096
Blocks per group: 32768
Inodes per group: 8192
Inode size: 256
Journal blocks: 2048
Label:
Blocks: 131072
Block groups: 4
Reserved block group size: 31
Created filesystem with 11/32768 inodes and 4206/131072 blocks
warning: wipe_block_device: Wipe via secure discard failed, used discard instead

I:Saving locale "en_US"

This makes me think that there is a way to push the build.prop from an external sd card. Any clarification would be great!

Thanks, Blake