[E 2015 General] fix-this!:
Im not really a dev but i know my way around android. I figured this could help kickstart development for us. I have pulled my boot.img and attached it below.

Here are the mount points for building a rom. May differ from the different varients. My model is XT1527 US LTE.

ls -al /dev/block/platform/soc.0/by-name
lrwxrwxrwx root root 1970-01-23 12:12 DDR -> /dev/block/mmcblk0p3
lrwxrwxrwx root root 1970-01-23 12:12 aboot -> /dev/block/mmcblk0p4
lrwxrwxrwx root root 1970-01-23 12:12 abootBackup -> /dev/block/mmcblk0p14
lrwxrwxrwx root root 1970-01-23 12:12 boot -> /dev/block/mmcblk0p33
lrwxrwxrwx root root 1970-01-23 12:12 cache -> /dev/block/mmcblk0p43
lrwxrwxrwx root root 1970-01-23 12:12 carrier -> /dev/block/mmcblk0p41
lrwxrwxrwx root root 1970-01-23 12:12 cid -> /dev/block/mmcblk0p28
lrwxrwxrwx root root 1970-01-23 12:12 clogo -> /dev/block/mmcblk0p30
lrwxrwxrwx root root 1970-01-23 12:12 dhob -> /dev/block/mmcblk0p24
lrwxrwxrwx root root 1970-01-23 12:12 factorytune1 -> /dev/block/mmcblk0p11
lrwxrwxrwx root root 1970-01-23 12:12 factorytune2 -> /dev/block/mmcblk0p35
lrwxrwxrwx root root 1970-01-23 12:12 frp -> /dev/block/mmcblk0p20
lrwxrwxrwx root root 1970-01-23 12:12 fsc -> /dev/block/mmcblk0p26
lrwxrwxrwx root root 1970-01-23 12:12 fsg -> /dev/block/mmcblk0p25
lrwxrwxrwx root root 1970-01-23 12:12 hob -> /dev/block/mmcblk0p23
lrwxrwxrwx root root 1970-01-23 12:12 hyp -> /dev/block/mmcblk0p7
lrwxrwxrwx root root 1970-01-23 12:12 hypBackup -> /dev/block/mmcblk0p18
lrwxrwxrwx root root 1970-01-23 12:12 keystore -> /dev/block/mmcblk0p39
lrwxrwxrwx root root 1970-01-23 12:12 kpan -> /dev/block/mmcblk0p36
lrwxrwxrwx root root 1970-01-23 12:12 logo -> /dev/block/mmcblk0p29
lrwxrwxrwx root root 1970-01-23 12:12 logs -> /dev/block/mmcblk0p9
lrwxrwxrwx root root 1970-01-23 12:12 metadata -> /dev/block/mmcblk0p13
lrwxrwxrwx root root 1970-01-23 12:12 misc -> /dev/block/mmcblk0p32
lrwxrwxrwx root root 1970-01-23 12:12 modem -> /dev/block/mmcblk0p1
lrwxrwxrwx root root 1970-01-23 12:12 modemst1 -> /dev/block/mmcblk0p21
lrwxrwxrwx root root 1970-01-23 12:12 modemst2 -> /dev/block/mmcblk0p22
lrwxrwxrwx root root 1970-01-23 12:12 oem -> /dev/block/mmcblk0p40
lrwxrwxrwx root root 1970-01-23 12:12 padA -> /dev/block/mmcblk0p12
lrwxrwxrwx root root 1970-01-23 12:12 padB -> /dev/block/mmcblk0p19
lrwxrwxrwx root root 1970-01-23 12:12 padC -> /dev/block/mmcblk0p37
lrwxrwxrwx root root 1970-01-23 12:12 persist -> /dev/block/mmcblk0p31
lrwxrwxrwx root root 1970-01-23 12:12 recovery -> /dev/block/mmcblk0p34
lrwxrwxrwx root root 1970-01-23 12:12 rpm -> /dev/block/mmcblk0p5
lrwxrwxrwx root root 1970-01-23 12:12 rpmBackup -> /dev/block/mmcblk0p15
lrwxrwxrwx root root 1970-01-23 12:12 sbl1 -> /dev/block/mmcblk0p2
lrwxrwxrwx root root 1970-01-23 12:12 sec -> /dev/block/mmcblk0p10
lrwxrwxrwx root root 1970-01-23 12:12 sp -> /dev/block/mmcblk0p38
lrwxrwxrwx root root 1970-01-23 12:12 ssd -> /dev/block/mmcblk0p27
lrwxrwxrwx root root 1970-01-23 12:12 system -> /dev/block/mmcblk0p42
lrwxrwxrwx root root 1970-01-23 12:12 tz -> /dev/block/mmcblk0p6
lrwxrwxrwx root root 1970-01-23 12:12 tzBackup -> /dev/block/mmcblk0p16
lrwxrwxrwx root root 1970-01-23 12:12 userdata -> /dev/block/mmcblk0p44
lrwxrwxrwx root root 1970-01-23 12:12 utags -> /dev/block/mmcblk0p8
lrwxrwxrwx root root 1970-01-23 12:12 utagsBackup -> /dev/block/mmcblk0p17