Originally Posted by colema19
So we were trying to update my friend's Tab 2 to a 4.4.2 ROM. We got CWM 18.104.22.168 installed (...)
We have a winner... the next one who didn't pay any attention - i.e. reading the OP post of the ROM thread.
ClockworkMod Recovery 6.0.x.y is ONLY for flashing CyanogenMod up to 10.1.3.
For flashing OMNI ROM or CyanogenMod 11 (both Android 4.4.2 at the time of writing) you _NEED_ to use TWRP (recommended for OMNI) or PhilzTouch Advanced Recovery or ClockworkMod Swipe Edition (recommended for CM11). See AndroidAndi's file repository to obtain a copy of the correct recovery for your particular model of the Tab 2.
Next thing to do: Download and install ODIN, install the "Samsung USB Drivers" (Google's your buddy), download the .tar.md5 of the recovery you want to flash (see above and make a choice), put the tablet into download mode, flash the recovery.
If that worked flash the custom ROM of choice (+gapps if CM11, +SuperSU if OMNI) through the custom recovery you just installed and be glad you didn't turn the tablet of your friend into a paperweight.