[Transformer TF300T Q&A, Help & Troubleshooting] Romwe:
worked but....

TF300T / bootloader 10.6.27.5 / TWRP 2.8.1.0.

I formatted partitions data and cache with TWRP with f2fs to and flashed Lollipop KatKiss ROM. Then tried to wipe data and cache again from TWRP but hanged and everything went hell....

I recovered with Buster99 method. TWRP and stock rom boots fine and TWRP found and mount all partitions

BUT

when i open shell from TWRP and get a partition list there is NO VALID PARTITION TABLE

/dev/block # fdisk -l mmcblk0
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0 2>&1'

Disk mmcblk0: 15.8 GB, 15896412160 bytes
4 heads, 16 sectors/track, 485120 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0 doesn't contain a valid partition table

Why there isn't a valid partition table on mmcblk0?? Should it be??

Can someone send a "fdisk -l /dev/block/mmcblk0" output?

Full twrp log:

__bionic_open_tzdata: couldn't find any tzdata when looking for localtime!
__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 TWRP 2.8.1.0 on Tue Dec 9 19:02:27 2014
BOARD_HAS_NO_REAL_SDCARD := true
TW_NO_REBOOT_RECOVERY := true
TW_NO_REBOOT_BOOTLOADER := true
RECOVERY_SDCARD_ON_DATA := true
TW_NO_USB_STORAGE := true
TW_INCLUDE_CRYPTO := true
I:Found brightness file at '/sys/devices/platform/pwm-backlight/backlight/pwm-backlight/brightness'
I:TWFunc::Set_Brightness: Setting brightness control to 200
Starting the UI...Pixel format: 1280x800 @ 16bpp
Pixel format: BGR_565
Not using qualcomm overlay, 'tegra_fb'
framebuffer: fd 4 (1280 x 800)
=> Linking mtab
Renaming regular /etc/recovery.fstab -> /etc/recovery.fstab.bak
Moving /etc/twrp.fstab -> /etc/recovery.fstab
=> Processing recovery.fstab
I:Processing '/system'
I:Processing '/cache'
I:Recreating /cache/recovery folder.
I:Processing '/misc'
I:Processing '/staging'
I:Processing '/data'
I:Setting up '/data' as data/media emulated storage.
I:mount '/data/media' '/sdcard' process ended with RC=0
I:mount '/data/media/0' '/sdcard' process ended with RC=0
I:mount '/data/media/0' '/sdcard' process ended with RC=0
I:Processing '/recovery'
I:Processing '/boot'
I:Processing '/external_sdcard'
I:Created '/external_sdcard' folder.
I:Backup folder set to '/data/media/0/TWRP/BACKUPS/015d32205b500409'
I:Settings storage is '/data/media/0'
Updating partition details...
I:Data backup size is 88MB, free: 12669MB.
I:Unable to mount '/external_sdcard'
I:Actual block device: '', current file system: 'vfat'
I:Unmounting main partitions...

Partition Logs:
/system | /dev/block/mmcblk0p1 | Size: 755MB Used: 738MB Free: 17MB Backup Size: 738MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_Available_in_GUI IsPresent
Primary_Block_Device: /dev/block/mmcblk0p1
Display_Name: System
Storage_Name: System
Backup_Path: /system
Backup_Name: system
Backup_Display_Name: System
Storage_Path: /system
Current_File_System: ext4
Fstab_File_System: ext4
Backup_Method: files

/cache | /dev/block/mmcblk0p2 | Size: 421MB Used: 6MB Free: 414MB Backup Size: 6MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent
Primary_Block_Device: /dev/block/mmcblk0p2
Display_Name: Cache
Storage_Name: Cache
Backup_Path: /cache
Backup_Name: cache
Backup_Display_Name: Cache
Storage_Path: /cache
Current_File_System: ext4
Fstab_File_System: ext4
Backup_Method: files

/misc | /dev/block/mmcblk0p3 | Size: 2MB
Flags: IsPresent
Primary_Block_Device: /dev/block/mmcblk0p3
Display_Name: misc
Storage_Name: misc
Backup_Path: /misc
Backup_Name: misc
Backup_Display_Name: misc
Storage_Path: /misc
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/staging | /dev/block/mmcblk0p4 | Size: 816MB
Flags: IsPresent
Primary_Block_Device: /dev/block/mmcblk0p4
Display_Name: staging
Storage_Name: staging
Backup_Path: /staging
Backup_Name: staging
Backup_Display_Name: staging
Storage_Path: /staging
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/data | /dev/block/mmcblk0p8 | Size: 12888MB Used: 88MB Free: 12669MB Backup Size: 88MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent Can_Be_Encrypted Has_Data_Media Can_Encrypt_Backup Use_Userdata_Encryption Is_Storage Is_Settings_Storage
Symlink_Path: /data/media/0
Symlink_Mount_Point: /sdcard
Primary_Block_Device: /dev/block/mmcblk0p8
Length: -16384
Display_Name: Data
Storage_Name: Internal Storage
Backup_Path: /data
Backup_Name: data
Backup_Display_Name: Data
Storage_Path: /data/media/0
Current_File_System: ext3
Fstab_File_System: ext4
Backup_Method: files

/recovery | /dev/block/mmcblk0p9 | Size: 8MB
Flags: IsPresent
Primary_Block_Device: /dev/block/mmcblk0p9
Display_Name: Recovery
Storage_Name: recovery
Backup_Path: /recovery
Backup_Name: recovery
Backup_Display_Name: Recovery
Storage_Path: /recovery
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/boot | /dev/block/mmcblk0p10 | Size: 8MB
Flags: Can_Be_Backed_Up IsPresent
Primary_Block_Device: /dev/block/mmcblk0p10
Display_Name: Boot
Storage_Name: boot
Backup_Path: /boot
Backup_Name: boot
Backup_Display_Name: Boot
Storage_Path: /boot
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/external_sdcard | | Size: 0MB Used: 0MB Free: 0MB Backup Size: 0MB
Flags: Can_Be_Mounted Can_Be_Wiped Wipe_Available_in_GUI Removable Is_Storage
Primary_Block_Device: /dev/block/mmcblk1p1
Alternate_Block_Device: /dev/block/mmcblk1
Display_Name: Micro SDcard
Storage_Name: Micro SDcard
Backup_Path: /external_sdcard
Backup_Name: external_sdcard
Backup_Display_Name: Micro SDcard
Storage_Path: /external_sdcard
Current_File_System: vfat
Fstab_File_System: vfat
Backup_Method: files

I:Loading package: TWRP (/script/ui.xml)
I:Loading package: TWRP (/data/media/0/TWRP/theme/ui.zip)
I:Loading package: TWRP (/res/ui.xml)
I:Loading resources...
I:Loading variables...
I:Loading mouse cursor...
I:Loading pages...
I:PageSet::CheckInclude loading filename: ''
I:Loading included resources...
I:Loading included variables...
I:Loading mouse cursor...
I:Loading included pages...
I:Loading page main
I:Loading page main2
I:Loading page install
I:Loading page flash_confirm
I:Loading page flash_zip
I:Loading page flash_done
I:Loading page clear_vars
I:Loading page confirm_action
I:Loading page action_page
I:Loading page singleaction_page
I:Loading page action_complete
I:Loading page filecheck
I:Loading page rebootcheck
I:Loading page reboot
I:Loading page selectstorage
I:Loading page mount
I:Loading page usb_mount
I:Loading page usb_umount
I:Loading page wipe
I:Loading page advancedwipe
I:Loading page formatdata
I:Loading page formatdata_confirm
I:Loading page checkpartitionlist
I:Loading page partitionoptions
I:Loading page refreshfilesystem
I:Loading page selectfilesystem
I:Loading page backup
I:Loading page backupname1
I:Loading page backupname2
I:Loading page backupencryption
I:Loading page backupencryption2
I:Loading page checkbackuppassword
I:Loading page backup_run
I:Loading page restore
I:Unable to open '/data/media/0/TWRP/BACKUPS/015d32205b500409'
I:Loading page restore_read
I:Loading page restore_decrypt
I:Loading page try_restore_decrypt
I:Loading page restore_select
I:Loading page renamebackup
I:Loading page restore_run
I:Loading page settings
I:Loading page timezone
I:Loading page screen
I:Loading page Vibrate
I:Loading page advanced
I:Loading page partsdcard
I:Loading page htcdumlock
I:Loading page lock
I:Loading page filemanagerlist
I:Loading page filemanageroptions
I:Loading page choosedestinationfolder
I:Loading page filemanagerrenamefile
I:Loading page filemanagerrenamefolder
I:Loading page filemanagerchmod
I:Loading page filemanagerconfirm
I:Loading page filemanageracction
I:Loading page decrypt
I:Loading page trydecrypt
I:Loading page terminalfolder
I:Loading page terminalcommand
I:Loading page sideload
I:Loading page installsu
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Switching packages (TWRP)
SELinux contexts loaded from /file_contexts
Full SELinux support is present.
Startup Commands:
ro.sf.lcd_density=160
ro.com.google.clientidbase=android-google
ro.com.android.dateformat=MM-dd-yyyy
ro.com.android.dataroaming=false
ro.com.android.wifi-watchlist=GoogleGuest
ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html
ro.boot.emmc=0
ro.boot.carrier=wifi-only
ro.boot.selinux=permissive
ro.boot.serialno=015d32205b500409
ro.boot.productid=0x02
ro.boot.commchip_id=0
ro.emmc=0
ro.epad.model=TF300T
ro.epad.model_id=02
ro.omni.device=tf300t
ro.omni.version=4.4.4-20141028-tf300t-HOMEMADE
ro.twrp.boot=1
ro.twrp.version=2.8.1.0
ro.wifi.channels=
ro.allow.mock.location=1
ro.board.platform=tegra
ro.build.id=KTU84P
ro.build.date=Tue Oct 28 13:57:18 UTC 2014
ro.build.date.utc=0
ro.build.host=ded1.ktechnology.net
ro.build.tags=test-keys
ro.build.type=eng
ro.build.user=dees_troy
ro.build.display.id=omni_tf300t-eng 4.4.4 KTU84P 4ef4c299f5 test-keys
ro.build.product=tf300t
ro.build.version.sdk=19
ro.build.version.release=4.4.4
ro.build.version.codename=REL
ro.build.version.incremental=4ef4c299f5
ro.build.description=WW_epad-user 4.2.1 JOP40D WW_epad-10.6.1.27.5-20130913 release-keys
ro.build.fingerprint=asus/WW_epad/EeePad:4.2.1/JOP40D/WW_epad-10.6.1.27.5-20130913:user/release-keys
ro.build.characteristics=tablet
ro.config.ringtone=Orion.ogg
ro.config.alarm_alert=Argon.ogg
ro.config.notification_sound=pixiedust.ogg
ro.kernel.android.checkjni=1
ro.secure=0
ro.carrier=wifi-only
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.name=EeePad
ro.product.board=cardhu
ro.product.brand=asus
ro.product.model=ASUS Transformer Pad TF300T
ro.product.device=tf300t
ro.product.locale.region=US
ro.product.locale.language=en
ro.product.manufacturer=asus
ro.baseband=unknown
ro.bootmode=unknown
ro.hardware=cardhu
ro.opengles.version=131072
ro.revision=0
ro.serialno=015d32205b500409
ro.bootloader=unknown
ro.debuggable=1
ro.modversion=OmniROM-4.4.4-20141028-tf300t-HOMEMADE
ro.factorytest=0
ro.setupwizard.enterprise_mode=1
tf.enable=y
net.bt.name=Android
net.change=net.bt.name
sys.usb.config=adb
init.svc.adbd=running
init.svc.ueventd=running
init.svc.mischelp=restarting
init.svc.recovery=running
twrp.crash_counter=0
wifi.interface=wlan0
wifi.supplicant_scan_interval=15
dalvik.vm.heapsize=384m
dalvik.vm.heapmaxfree=8m
dalvik.vm.heapminfree=512k
dalvik.vm.dexopt-flags=m=y
dalvik.vm.heapstartsize=8m
dalvik.vm.heapgrowthlimit=64m
dalvik.vm.stack-trace-file=/data/anr/traces.txt
dalvik.vm.heaptargetutilization=0.75
persist.sys.fw.camera.status=1
persist.sys.usb.config=mtp,adb
persist.sys.dalvik.vm.lib=libdvm.so
persist.sys.root_access=1
persist.tegra.nvmmlite=1
service.adb.root=1
keyguard.no_require_sim=true

I:Copying file /cache/recovery/log to /cache/recovery/last_log
I:Attempt to load settings from settings file...
I:Settings file '/data/media/0/TWRP/.twrps' not found.
I:Copying file /etc/recovery.fstab to /cache/recovery/recovery.fstab
I:Version number saved to '/cache/recovery/.version'
I:Unable to mount '/external_sdcard'
I:Actual block device: '', current file system: 'vfat'
__bionic_open_tzdata: couldn't find any tzdata when looking for CST6CDT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
I:TWFunc::Set_Brightness: Setting brightness control to 200
I:Enabling MTP during startup
I:Starting MTP
twrp addStorage /data/media/0, mtpstorageid: 65537
Starting MTP
MTP Enabled
created new mtpserver object
adding internal storage
MtpStorage id: 65537 path: /data/media/0
I:Switching packages (TWRP)
I:Starting command line thread
MtpServer::run fd: 14
I:TWFunc::Set_Brightness: Setting brightness control to 5
I:TWFunc::Set_Brightness: Setting brightness control to 0
I:TWFunc::Set_Brightness: Setting brightness control to 200
I:Set page: 'mount'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'mount'
I:Disabling MTP
I:mount '/data/media/0' '/sdcard' process ended with RC=0
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'backup'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'install'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'mount'
I:Set page: 'main'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'advanced'
I:Set page: 'terminalfolder'
I:Set page: 'terminalcommand'
/ # fdisk -l /dev/block/mmcblk0
I:Actual command is: 'cd "/" && fdisk -l /dev/block/mmcblk0 2>&1'

Disk /dev/block/mmcblk0: 15.8 GB, 15896412160 bytes
4 heads, 16 sectors/track, 485120 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk /dev/block/mmcblk0 doesn't contain a valid partition table
I:Set page: 'terminalfolder'
I:Set page: 'terminalcommand'
/dev/block # ls
I:Actual command is: 'cd "/dev/block" && ls 2>&1'
loop0
loop1
loop2
loop3
loop4
loop5
loop6
loop7
mmcblk0
mmcblk0boot0
mmcblk0boot1
mmcblk0p1
mmcblk0p10
mmcblk0p2
mmcblk0p3
mmcblk0p4
mmcblk0p5
mmcblk0p6
mmcblk0p7
mmcblk0p8
mmcblk0p9
platform
/dev/block # fdisk -l mmcblk0
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0 2>&1'

Disk mmcblk0: 15.8 GB, 15896412160 bytes
4 heads, 16 sectors/track, 485120 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p1
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p1 2>&1'

Disk mmcblk0p1: 805 MB, 805306368 bytes
4 heads, 16 sectors/track, 24576 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p1 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p2
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p2 2>&1'

Disk mmcblk0p2: 448 MB, 448790528 bytes
4 heads, 16 sectors/track, 13696 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p2 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p3
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p3 2>&1'

Disk mmcblk0p3: 2 MB, 2097152 bytes
4 heads, 16 sectors/track, 64 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p3 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p4
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p4 2>&1'

Disk mmcblk0p4: 855 MB, 855638016 bytes
4 heads, 16 sectors/track, 26112 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p4 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p5
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p5 2>&1'

Disk mmcblk0p5: 5 MB, 5242880 bytes
4 heads, 16 sectors/track, 160 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Device Boot Start End Blocks Id System
/dev/block # fdisk -l mmcblk0p5
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p5 2>&1'

Disk mmcblk0p5: 5 MB, 5242880 bytes
4 heads, 16 sectors/track, 160 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Device Boot Start End Blocks Id System
/dev/block # fdisk -l mmcblk0p6
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p6 2>&1'

Disk mmcblk0p6: 0 MB, 524288 bytes
4 heads, 16 sectors/track, 16 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p6 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p7
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p7 2>&1'

Disk mmcblk0p7: 5 MB, 5242880 bytes
4 heads, 16 sectors/track, 160 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p7 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p8
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p8 2>&1'

Disk mmcblk0p8: 13.7 GB, 13730578432 bytes
4 heads, 16 sectors/track, 419024 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p8 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p9
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p9 2>&1'

Disk mmcblk0p9: 8 MB, 8388608 bytes
4 heads, 16 sectors/track, 256 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p9 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p10
I:Actual command is: 'cd "/dev/block" && fdisk -l mmcblk0p10 2>&1'

Disk mmcblk0p10: 8 MB, 8388608 bytes
4 heads, 16 sectors/track, 256 cylinders
Units = cylinders of 64 * 512 = 32768 bytes

Disk mmcblk0p10 doesn't contain a valid partition table
/dev/block # fdisk -l mmcblk0p22