Updated files for CM9/CM10 Bootable SDCard on Nook Tablet (10/27)

I have some suggestions to help you get this going. I have both the 8gb and 16gb NTs working just fine.

You say you are copying the “boot.img” to the CM9 rom zip. If you are talking about “cm9.img” that file goes into the sdcard partition.


First partition, make it 1001 mb. (Or 2001, 3001, etc.) I have expanded this to 16001 on a 32gb, and found by trial and error that this seems to be the largest that it will accept.

What I have found is that not all microSD cards are same. Some cards can be used to boot the Nook tablet and some cannot. I also have a Raspberry Pi, and the same is true there. (If it works in the Pi, it works in the Nook). So, if the card doesn’t work, try another. I don’t know what makes the difference, but I have a SanDisk 8 GB, and that doesn’t boot.

When redoing the card between tries, delete all partitions and create a Fat32 partition and then erase it before creating your partitions to use.

Instead of “system1” name the partition “system”. This helps with the Gapps file later on.

Hope this helps.

Randy Jakus

  • Copy boot.img/altboot.img, recovery.img, and flashing_boot.img along with u-boot.bin and MLO on to your sdcard.
  • Replace the updater-script inside the rom, *.zip, by drag and drop using winrar/winzip.
  • Flash the rom using recovery.
  • More details are in my other posts.
  • Do this at your own risk!
  • HD

How to Guide: Dual-boot (CM7/CM9) SDCard for Nook Tablet (5/28)



  • UPDATED GUIDES: How to Guide: Bootable (CM7/CM9/CM10) SDCard for Nook Tablet
  • You need to have a SDCard 4GB or bigger. The default steps are for 4GB sdcard.
  • For sdcard bigger than 4GB, you need to make adjustments.
  • Data partition stores your apps, so you want at least 1GB.
  • System partition stores your system files and apps, 350MB – 400MB is all you need.
  • SDCard partition stores your boot files and misc. files so the larger the better.
  • Need help? http://forum.xda-developers.com/showthread.php?t=1545766
  • If done correctly, your Nook Tablet should boot to fattire’s Cyanoboot, if not, nothing.
  • I’ve made changes so it’s easier to make just a cm9 bootable sdcard
  • If you are stuck at the two androids when booting CM7 for over a minute, boot into CWM Recovery and wipe cache partition.
  • Added file for CM9 Alpha 0.04
  • If you can’t get wifi working in CM7, it mean you used the wrong cm7.img.
  • New Boot Menu with altboot1 – 3. They are for partitions system3 – 5/data3 – 5 if you want quintuple boot.
  • Not all sdcard brands are made equal. I always recommend SanDisk due to fast small block random write.
  • Learn more about it here, http://forum.xda-developers.com/showthread.php?t=1005633
  • Added file for CM9 Alpha 0.05/0.05.1. You can mount both sdcard and emmc now.

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How To Guide: Bootable CM7 for Nook Tablet (Win7)

Software: SDFormatter, MiniTool Partition Wizard Home Edition 7.1 (Free, Google it)

Hardware: 2GB or higher microSD

Setting up sdcard (2GB default. For best result, use SanDisk sdcard),

  • Plug in your microSD to your computer.
  • Use SDFormatter to format your sdcard.
  • Open up MiniTool Partition Wizard Home Edition.
  • Click on your microSD disk.
  • Delete all partitions on your microSD disk (Display Unallocated)
  • (If you have bigger sdcard then you want bigger partition size for Boot partition)
  • (You want at least 1GB for Data partition)
  • Click Create to create Boot Partition.
  • – File System: FAT32
  • – Partition Label: Boot
  • – Create As: Primary
  • – Cluster Size: Default
  • – Partition Size: 500 is recommended but you can choose higher. Click OK.
  • Click on Unallocated, and Create System Partition.
  • – File System: Ext4
  • – Partition Label: System
  • – Create As: Primary
  • – Cluster Size: Default
  • – Partition Size: 400 is recommended. Click OK.
  • Click on Unallocated, and Create Data Partition.
  • – File System: Ext4
  • – Partition Label: Data
  • – Create As: Primary
  • – Cluster Size: Default
  • – Size and Location: Drag arrow on the right all the way to the right. Click OK.
  • Click Apply. Right click on Boot partition, Modify -> Set Active and Apply again.
  • Close Program.
  • Open up your sdcard in Explorer.
  • Copy the contents from acclaim_sd_cm7_HD.zip to the root of your sdcard.
  • Remove your sdcard and plug it into your Nook Tablet.
  • Power on device and wait until it boot into Recovery.
  • (Some NT devices required power cable to be plugged in)

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How To Guide: Nook Tablet and CM7

 Device configuration for the acclaim (Nook Tablet)

 Copyright (C) 2011 The Android Open-Source Project

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at


 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 See the License for the specific language governing permissions and
 limitations under the License.

Initial pull and modify from WhistleStop repo as a base.

Other reference bases: android_device_bn_encore, android_device_motorola_targa, android_device_lge_p920.


  1. How to compile CM7
  2. Setting up recovery sdcard
  3. Backup using recovery
  4. Installing rom from recovery
  5. First time booting sequence
  6. Other flashable files (Did you messed up your Nook Tablet?)

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