[Verizon Samsung Galaxy S III] alquimista:
You're missing a few mmc blocks for the SCA-I535 (d2vzw). Here they are, but I hve no idea what they do:

/dev/block/mmcblk0boot0
/dev/block/mmcblk0boot1
/dev/block/mmcblk1p1
/dev/block/mmcblk1p2

The latter two blocks suggest a second eMMC chip with its own NAND storage.

I working on a tool that backs up the SCH-I535 directly to your computer using adb. You can find it HERE. For now, Its only setup for partitions and data that one might use in recovery like CWM or TWRP or even ODIN. I haven't iterated out all the blocks into backup code yet, but I am working on it. I hope to have this list:

## BLOCK_LIST ##
# Conventions for the list o block are as follows
# [VAR_NAME]="/dev/blockmmcblk#p##" #-> [Known As] ([FS], [mount point if visible], [description]) == [odin img file]
MOD_BLK="/dev/block/mmcblk0p1" #-> CDMA Modem (vfat, mounts at /firmware, its the CDMA modem) == NON-HLOS.bin
SB1_BLK="/dev/block/mmcblk0p2" #-> sbl1 (samsung proprietary fs, sammys odd way of booting part1) == sbl1.mbn
SB2_BLK="/dev/block/mmcblk0p3" #-> sbl2 (samsung proprietary fs, sammys odd way of booting part2) == sbl2.mbn
SB3_BLK="/dev/block/mmcblk0p4" #-> sbl3 (samsung proprietary fs, sammys odd way of booting part3) == sbl3.mbn
ABT_BLK="/dev/block/mmcblk0p5" #-> aboot (unknown fs, this is the bootloader) == aboot.mbn
RPM_BLK="/dev/block/mmcblk0p6" #-> rpm (unknown fs, something to do with the radio) == rpm.mbn
BOT_BLK="/dev/block/mmcblk0p7" #-> boot (yaffs2, boot image contains the kernel) == boot.img
STZ_BLK="/dev/block/mmcblk0p8" #-> tz (porbably samsung proprietary fs, samsungs "Trust Zone" referenced in the sbl boot process) == tz.mbn
PAD_BLK="/dev/block/mmcblk0p9" #-> pad (unknown fs, aka PIT )
PRM_BLK="/dev/block/mmcblk0p10" #-> param (unknown fs, pretty much empty exept for one octet)
EFS_BLK="/dev/block/mmcblk0p11" #-> /efs (ext4, mounts at /efs, has device info like IMEI and MEID)
LT1_BLK="/dev/block/mmcblk0p12" #-> modemst1 (unknown fs, LTE modem 1)
LT2_BLK="/dev/block/mmcblk0p13" #-> modemst2 (unknown fs, LTE modem 2)
SYS_BLK="/dev/block/mmcblk0p14" #-> /system (ext4, everything under /system) == system.img.ext4
DAT_BLK="/dev/block/mmcblk0p15" #-> userdata (ext4. mounts at /data, contains internal sdcard as well at /data/media)
PST_BLK="/dev/block/mmcblk0p16" #-> /persist && /tombstones (ext4, contains very little data) == persist.img.ext4
CHE_BLK="/dev/block/mmcblk0p17" #-> /cache (ext4, its the cache baby) == cache.img.ext4
REC_BLK="/dev/block/mmcblk0p18" #-> recovery (ext4??, recovery image like CWM and TWRP?) == recovery.img
OTA_BLK="/dev/block/mmcblk0p19" #-> fota (ext4, found at /cache/fota, its where OTA updates are stored)
BAK_BLK="/dev/block/mmcblk0p20" #-> backup (unknown fs, where factory reset images are stored?)
FSG_BLK="/dev/block/mmcblk0p21" #-> fsg (unknown fs, may contain files used in factory wipe, somehow linked to the grow partition)
SSD_BLK="/dev/block/mmcblk0p22" #-> ssd (unknown fs maybe ramfs, "Secure Software Download" don't know what its used for)
GRW_BLK="/dev/block/mmcblk0p23" #-> grow (unknown fs, i think this has something to do with ext4 sparse images)

# WTF!?!?!?!?!?!!???
DK1_BLK="/dev/block/mmcblk0boot0" #-> may have something to do with booting (duh, but what)
DK2_BLK="/dev/block/mmcblk0boot1" #-> may have something to do with booting (duh, but what)
DK3_BLK="/dev/block/mmcblk1p1" #-> no idea
DK4_BLK="/dev/block/mmcblk1p2" #-> no idea

# NOTES:
# samsung seems to refer to 4 types of file systems; cgroup, ecryptfs, ext4, fuse
# could ecryptfs be the same as samsungs proprietary file system?

## END_BLOCK_LIST ##

Included in the tool, as options to backup. So far I have working code for System, Data (makes a tar and skips /data/media), Recovery, Userdata (HUGE), Modemst1, Modemst2, CDMA modem, Cache and Boot. But I do want to have all mmc blocks as options because I need a disaster recovery plan as well.

There's still alot of work to be done on it, but for now I use it to back up my device before flashing a rom. Saves on internal storage.

I'll try and convert my block list to you format used in the EL GRANDE Partition Table Reference as soon as possible. I dunno if you'll need it though. I do have alot of knowledge on GPT (GUID Partition Table) formatted storage as well as how EFI vs MBR can work withing such a table. But I can discuss that on the other thread.

I've read what you have so far in that thread and its very helpful.

Ta,

ALQI