[Nook Color Android Development] cmstlist:
Edit edit edit edit: I sold my Nook Color in the summer of 2012. If there is anything you need me to edit into this top post I am happy to. Thanks!

Edit edit edit: I still own a Nook Color but I will not be actively editing this thread anymore. Here is the gist of it: You take any bootable Clockwork SD card, paste over the uRecImg and uImage files as needed for newer versions of CWM, and now you have an updated card. I was advised to warn you guys that the 3.0.x.x versions of CWM are not compatible with newer NC devices that have different partition tables. I was also asked to post the following:

But I do want to point I disagree with the statement that "you really only need the 1GB image"... I use my CWM SD to make nandroid backups before major changes, so it makes a difference to have the full size of your SD available.

---- end of edit. Happy hacking!

I just wanted to report that I was able to take files from two different threads and use them to create a bootable SD card with ClockworkMod 3.0.1.0 and now 3.0.2.8. The advantage of this version is that it works for both ext3 and ext4 ROMs. I successfully flashed an ext4 version of Honeycomb and then restored back to my nandroid backup of auto-nooted Eclair.

EDIT: Direct links to 3.0.2.8 bootable images here: http://mrm3.net/nook-color-updated-clockwork-recovery-bootable-sd/

Source of those files is this post: http://xdaforums.com/showpost.php?p=13283643&postcount=34

Credit to DizzyDen.

Image writer here: https://launchpad.net/win32-image-writer

NEW INSTRUCTIONS

1) Obtain the image for your SD card size here, containing any version of CWM:

(This link is now broken.)

http://legacyschool.us.to/nookdev/clockwork/0.7/

(source: http://xdaforums.com/showthread.php?t=922870)

2) Obtain the correct uImage and uRamdisk files for CWM 3.0.2.8. The way I did this was to flash CWM 3.0.2.8 from ROM Manager and then mount my /boot partition to copy out the files uRecImg and uRecRam.

But for the benefit of those of you here who can't flash CWM successfully, I've attached the files here.

3) Burn the SD card as instructed. Leave the SD mounted in your computer afterwards.

4) Rename your copy of the new uRecImg to uImage and replace the uImage file on the SD.

Rename your copy of the new uRecRam to uRamdisk and replace the uRamdisk file on SD.

5) Eject the SD from your computer, pop it into your Nook Color, reboot and verify that you indeed manage to boot into the new desired version of ClockworkMod. Upon completion I had a bootable 3.0.2.8 SD card.

OLD INSTRUCTIONS BELOW

I haven't seen anyone here post an SD image for 3.0.1.0, so here is what I did instead:

1) Obtain the image for your SD card size here, containing CWM 3.0.0.5 at time of writing:

http://legacyschool.us.to/nookdev/clockwork/0.7/

(source: http://xdaforums.com/showthread.php?t=922870)

2) Also get the newer version of ClockwordMod in .zip format:

3.0.1.0 is here: http://muffinworld.net/android/nookcolor/clockwork/cwmr_3.0.1.0.zip

(source: http://xdaforums.com/showthread.php?t=971197)

3) Burn the SD card as instructed. Leave the SD mounted in your computer afterwards.

4) Unzip the files uRecImg and uRecRam from the newer CWR zip.

Rename uRecImg to uImage and replace the uImage file on the SD.

Rename uRecRam to uRamdisk and replace the uRamdisk file on SD.

5) Eject the SD from your computer, pop it into your Nook Color, reboot and verify that you indeed manage to boot into the new desired version of ClockworkMod.

Enjoy!

EDIT: Post #4 below contains IMG files created using this method for ClockworkMod 3.0.1.0. Thanks to DizzyDen.

http://xdaforums.com/showpost.php?p=11999569&postcount=4