[T-Mobile myTouch 4G Slide] Blue6IX:
And to bring it here for reference:

Actually, this whole thread is a good read for anyone who wants to take part in this, devs in particular:

HBOOT (1.44.0006) missing fastboot oem commands

So being S-OFF you can swap out hboots at will, including flashing one from another device - no matter how close it is to ours that's freedom.

This also further illustrates that we can use stuff from the Sensation to some extent, which we've always known - but we have to be careful because some minor things are different and we need to make sure we check everything carefully before using it.

I haven't been by the Sensation forums much recently, i've had a lot to do right here in our sub-forum, but after pulling up that tidbit on S-ON from a quick XDA search I think we will be able to find some of this work done for us as i'm sure people over there have been asking the same questions.

The other day I happened to find this when looking up partition info:

How was this info gained? I sent a pm to the OP to hopefully get a clue.

HTC Sensation emmc partition layout

...and this one is a wealth of information:

HTC Sensation & HTC Sensation XE firmware | Partitions Info

And here is what we know about our partition layouts:

From doubleshot Partitions and Mounts

- mmcblk0p31 - "misc"

- mmcblk0p29 - "pdata"

- mmcblk0p27 - "devlog"

- mmcblk0p26 - "modem_st2"

- mmcblk0p25 - "modem_st1"

- mmcblk0p24 - "cache"

- mmcblk0p23 - "userdata"

- mmcblk0p22 - "system"

- mmcblk0p21 - "recovery"

- mmcblk0p20 - "boot"

- mmcblk0p19 - "adsp"

- mmcblk0p18 - "radio_config"

- mmcblk0p17 - "radio"

- mmcblk0p14 - "splash"

- mmcblk0p12 - hboot

Unknown:

- mmcblk1p1

- mmcblk1

- mmcblk0p30

- mmcblk0p28

- mmcblk0p16

- mmcblk0p15

- mmcblk0p13

- mmcblk0p11

- mmcblk0p10

- mmcblk0p9

- mmcblk0p8

- mmcblk0p7

- mmcblk0p6

- mmcblk0p5

- mmcblk0p4

- mmcblk0p3

- mmcblk0p2

- mmcblk0p1

- mmcblk0

- loop7

- loop6

- loop5

- loop4

- loop3

- loop2

- loop1

- loop0

- vold

- platform

Also something to mention:

fastboot oem checkSbl1
...
(bootloader) sbl1 signature checking...
(bootloader) TZ_HTC_SVC_VERIFY_BOOTLOADER ret = 0
(bootloader) sbl1 verified successfully
OKAY [ 0.078s]
finished. total time: 0.078s

TZ? Trust Zone?

The PG59IMG.zip file used in Restore to Stock (S-OFF Devices) installs the following images:

[1] Bootloader = hboot

[2] Boot

[3] Recovery

[4] System

[5] Splash

[6] Userdata

[7] SBL1 ...? sbl1

[8] SBL2 ...? sbl2

[9] SBL3 ...? sbl3

[10] Trust_Zone ...? tz

[11] RPM ...? rpm

[12] ADSP ...? adsp

[13] TP ...? tp

[14] Radio_V2 ...? radio

[15] Radio_Cust ...? rcdata ...? radio_config

Definitions:

ADSP = Advanced Digital Signal Processor

RCDATA = Radio Config Data

RPM = Real Time System for Power Management

SBL1 = Secondary Bootloader (part 1)

SBL2 = Secondary Bootloader (part 2)

SBL3 = Secondary Bootloader (part 3)

SPLASH1 = Splash Image

----

...and as you can see from when some of these threads were started that iv'e linked up so far from around the doubleshot forums, a handful of people have been independently working on different parts of this whole solution whether they realized it or not.

While I was reviewing all this over the last 11 hours or so, it was pretty cool do wander back over it and see how everything was leading up to what we're working on right now.

I will spend some time searching the Sensation forums for some more info about this and see what I can find after breakfast...