This guide will help you merge userdata and media partitions in to one Big for 16gb Nooks is aprox. 14,3GB and for 8Gb is aprox 6.1GB
What are those?
userdata is your /data partition and in that one you can currently install the apps/games until is full.
Media is your internal sdcard(emmc)
What we are going to do?
We will delete both userdata and media and make a bigger userdata and inside that we are going to mount the media partition so will become like this /data/media.
1.Working CyanoBoot aka 2ndary bootloader.
2.Fastboot drivers and adb shell drivers with both of them functional
3.A special recovery to perform the merge.
You cant use any existing recoveries after this is done.I or chrmhoffmann will post a special recovery after the changes are done on device tree.
A special thanks to meghd00t for the sgdisk tool. A very valuable tool for this task.
So how this is done already!
1. Download the special recovery from here
2. Download the new cm recovery from here
3.Put both into your working fastboot folder.
4.Enter fastboot mode with holding N and select fastboot on Cyanoboot menu.
5. Copy&Paste the next lines
fastboot flash recovery sgdisk-recovery.img fastboot reboot
7. Copy&Paste the next lines
sgdisk /dev/block/platform/mmci-omap-hs.1/mmcblk0 -d 11 -d 10
sgdisk /dev/block/platform/mmci-omap-hs.1/mmcblk0 -n 0:0:0
sgdisk /dev/block/platform/mmci-omap-hs.1/mmcblk0 -c 10:userdata
make_ext4fs -L userdata /dev/block/mmcblk0p10
10 1611MB 15.9GB 14.3GB ext4 userdata
It should print in the end (for 8GB nooks)
10 1611MB 7734MB 61240MB ext4 userdata
Number 10 is your new partition, 14.3GB/6.1GB is the partition size ext4 is the filesystem and userdata is the name of the partition
After that you can issue a
Enter fastboot again and flash the new recovery [recovery-L-acclaim-20150221-ENG.img]
For F2FS support boot into new recovery