[Barnes & Noble Nook Tablet] glove0001:
This is too complicated, really.

Just got a used NT16. Previous owner factory restored. Downloaded img file from:

[SD Root] Make 16 or 8GB Nook Tablet Root SD Cards by Albert Wertz [SDNT16or8gbV4.7]

No instructions on how to mount image to SD card for Mac (it says just google it...)

Google did not turn up a clear result.

So I finally Googled the right query: how to burn an ISO on a USB drive on Mac OS X

And in turn gave me this - how to mount the image:

"Directly from the Ubuntu download page (my formatting):

Download the desired file

Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight)

Convert the .iso file to .img using the convert option of hdiutil (e.g., hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso)

Note: OS X tends to put the .dmg ending on the output file automatically. Remove the .dmg extension as necessary, mv ~/path/to/target.img{.dmg,}

Run diskutil list to get the current list of devices

Insert your flash media

Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2)

Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2)

Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m (replace /path/to/downloaded.img with the path where the image file is located; for example, ./ubuntu.img or ./ubuntu.dmg).

Using /dev/rdisk instead of /dev/disk may be faster.

If you see the error dd: Invalid number '1m', you are using GNU dd. Use the same command but replace bs=1m with bs=1M.

If you see the error dd: /dev/diskN: Resource busy, make sure the disk is not in use. Start the 'Disk Utility.app' and unmount (don't eject) the drive.

Run diskutil eject /dev/diskN and remove your flash media when the command completes

Restart your Mac and press Alt while the Mac is restarting to choose the USB stick"

So.........

I followed the instructions to a tee. I am using a 128 MB SanDisk micro SD card.

I inserted the card in my Nook and powered it off. Put the USB cable in and after many minutes the Nook turned on. All it did was power on like normal. Once, I removed the SD card while nothing was happening (waiting for boot). Intermittently (as a result?), I was unable to turn Nook on at all, thinking it was bricked. So, I tried the SD card again, and again after several minutes it turned on. Have removed the card now and Nook works like normal again.

So, I have a 16GB Nook Tablet with 1.4.3 and would like to root it AND flash Android which may require who knows how many sd cards and various recovery modules. I would like to say I love learning how to do all of this, except these instructions are always written by developers FOR developers. Perfect example is the Bishop of Technology. One page leads to another and then another. There is no definitive answer to be found on his site. My favorite part is where he says "now take out the boot card and insert ("vague") custom ROM. And then says, now you might want to backup (using CWM). This is all on the page for installing Jellybean on 1.4.3. The whole page is a mish-mash of vagueness and redirection. That is why I tried installing directly from XDA instead.

But, like I said, I was unsuccessful. And I'm not willing to risk trial and error or spend another four hours digging around trying to find the meaning of every instruction. How hard is it to go into a bit more detail and include links every time appropriate. (insert custom ROM - this is vague and no link is shown for downloading the custom ROM.)

Should I get a 2GB sd card so I can install 142 (500MB) first?

Maybe rdisk was to fast and corrupted the image?