This is also a bit more like a proof of concept (and a bit crude at that), even though fully functional - Stock ROM fully bootable from sdcard.
I don't think a lot of people would use this as a daily driver, but it certainly beats having stock on sdcard vs needing to restore stock in EMMC every time you need to test one little thing (or you might buy a few more Nooks, I guess. B&N would certainly appreciate that ).
Limitations and differences from real stock:
- currently there's no access to emmc storage partition as I wanted the setup to remain as vanilla as needed at first
- adb is on by default, though (As root).
- You can actually change files in /system as much as you want - secure mode is off.
For ovation (Nook HD+) You'll need a special ovation image that you'll need to write to an sdcard, at least 4G in size. (gunzip and use dd or winImage)
For hummingbird (Nook HD) You'll need a special hummingbird CWM image that you'll need to write to an sdcard, at least 4G in size. (gunzip and use dd or winImage)
Also get the the stock image (see below) and either place it to internal storage or reboot from the card and use adb push it to /sdcard (basically it's like you install CM ROM, refer to user-friendly thread in General if you cannot follow my condensed instructions here, only use different file name). Note this already has gapps and other stuff, so you don't need any additional installs other than stock at the beginning.
For ovation: stock-ovation-2.2.0.zip (If you are upgrading from 2.1.1 or before, you also need to flash cyanoboot-ovation-2.zip)
For hummingbird: stock-hummingbird-2.2.0-new.zip (If you are upgrading from 2.1.1 or before, you also need to flash cyanoboot-hummingbird-1.zip)
So after you install this thing, reboot. CWM will warn you that the image is not rooted. Decide for yourself if you want to root on the spot or not.
The dimmed Cyanoboot logo will stay on for quite a while (52 seconds for me) - don't worry, it's doing something.
You'll be able to adb in about halfway through that.
Then you'll see familiar Nook Stock white booting screen, this one will stop at 99% - again no fears, it takes quite a while here till the thing rebuilds the caches, on my class4 sandisk it takes 2m40s
Once it's done - you'll be prompted to register and all that.
Now you are done, enjoy.
Now I also have a script to automate creation of the stock zips for sdcard install, so you no longer need o wait for me to create these files
Old Stock images:
For ovation: stock-ovation-2.1.0.zip stock-ovation-2.1.1.zip - these need a special old ovation image
For hummingbird: stock-hummingbird-2.1.1.zip - these need a special old hummingbird CWM image