I'd start by forking my omnirom KitKat sources since they are closest to an aosp setup.

I tried to build aosp in the past but ran into too many issues.

 

ive been looking at it too some things your going to need.. http://opensource.lge.com/osSch/list?types=ALL&search=lg+volt
i also think you need jdk6 installed. there is also like 3 versions of KK. i downloaded the 3 revision but thats is far as i got since i uninstalled ubuntu 15.10 because it ran like crap on my laptop. i could only have like 6 tabs on firefox running and my system became really unstable. I switched to Chromixium. Its lighter and still uses ubuntu osp. Most of the asop forks are just built on cyanogen, and add intergrade features from xposed with a theme; which curtis is doing to the stock rom. So help us get cm11 smooth and it will be much easier to port to different asop, and will have curtis with his knowledge of the xml files come theme yo.

Readme

Code (Text):

1. 1. Android build
2.   - Download original android source code ( kitkat 4.4.2 ) from http://source.android.com
3.   - Untar opensource packages of LS740_andoid_KK.tar.gz* into downloaded android source directory
4.     a) tar -zxvf LS740_andoid_KK.tar.gz
5.   - And, merge the source into the android source code
6.   - Run following scripts to build android
7.     a) source build/envsetup.sh
8.     b) choosecombo 1 generic user
9.     c) make -j4
10.   - When you compile the android source code, you have to add google original prebuilt source(toolchain) into the android directory.
11.   - After build, you can find output at out/target/product/generic
12.  
13. 2. Kernel Build
14.   - Uncompress using following command at the android directory
15.         tar xvzf LS740_KK_kernel.tar.gz
16.   - When you compile the kernel source code, you have to add google original prebuilt source(toolchain) into the android directory.
17.   - Run following scripts to build kernel
18.     a)$cd kernel
19.       $mkdir -p out
20.     b)$export ARCH=arm
21.     c)$export TARGET_PRODUCT=x5_spr_us
22.     d)$export DTS_TARGET=msm8226-x5_spr_us
23.     e)$export PATH=$PATH:tools/lz4demo
24.     f)$export CROSS_COMPILE=$(pwd)/../prebuilts/gcc/linux-x86/arm/arm-eabi-4.6/bin/arm-eabi-
25.     g)$make O=./out ARCH=arm x5_spr_us_defconfig
26.     h)$make O=./out -j4
27.         * "-j4" : The number, 4, is the number of multiple jobs to be invoked simultaneously.
28.         * lz4demo : lz4demo is included in kernel/tools/lz4demo(change mode for excuting, chmod 777 lz4demo).
29.             More information can be found at "https://code.google.com/p/lz4/"
30.   - After build, you can find the build image(zImage) at out/arch/arm/boot
31.  
32. 3. how  to build chromium_lge (vendor\lge\external\chromium_lge\src),
33.    please refer to README.txt at the folder mentioned above.
34.  
35.  
36.  

 

I cant get the cm11 boot.img to decompile with the volt tool kit. how ever it does give stock.
there is some good reading in /kernel/documentation inside the source files.

 

The best place to begin is to try and replicate something that already exists - try compiling CM11 or OmniROM using @whoshotjr2006 's sources, as he suggested. It's a lot easier to pore over the code after that and figure out what's going where and how the compiler builds the Android system.

Are you trying to port another open-sourced ROM to this device? Or are you trying to create something new, using one of these custom ROMs as a base?

Glad to see someone else getting their hands dirty in the code here

 

What does your build machine look like spec-wise?

 

This one? http://www.cnet.com/products/hp-2133-mini-note-pc/specs/

If you're going to build with something like that, you'll wanna go really light-weight, to the extreme. You can try installing Ubuntu's minimal installation package, which lets you install only what you need from the command line.