My Android device (rk2928, Android 4.1.1) currently has NAND flash on sdcard and the SD card on external_sd. Moving an app to SD keeps it in flash but takes up more of it total, so I'd like to reallocate the NAND flash used for sdcard into internal memory and then have the SD card on sdcard. How can I do this? Or is there a very good reason why I should not do this?
Results of df:
Filesystem Size Used Free Blksize
/dev 197.2M 36.0K 197.2M 4096
/mnt/asec 197.2M 0.0 K 197.2M 4096
/mnt/obb 197.2M 0.0 K 197.2M 4096
/system 511.6M 393.0M 118.6M 1024
/data 1007.9M 840.3M 167.6M 4096
/cache 124.0M 16.1M 107.9M 4096
/mnt/external_sd 14.9G 10.2G 4.7 G 8192
/mnt/sdcard 1.7 G 1.0 G 658.5M 8192
/mnt/secure/asec 1.7 G 1.0 G 658.5M 8192
/mnt/asec/<apps follow> ...
Results of mount:
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,relatime,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/mtdblock8 /system ext4 ro,noatime,nodiratime,barrier=1,data=ordered,noauto_da_alloc 0 0
/dev/block/mtdblock6 /data ext4 rw,nosuid,nodev,noatime,nodiratime,barrier=1,data=ordered,noauto_da_alloc 0 0
/dev/block/mtdblock5 /cache ext4 rw,nosuid,nodev,noatime,nodiratime,barrier=1,data=ordered,noauto_da_alloc 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0
/dev/block/vold/179:0 /mnt/external_sd vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/31:9 /mnt/sdcard vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/31:9 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,noatime,nodiratime,uid=1000,gid=1015,fmask=0002,dmask=0002,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
tmpfs /mnt/sdcard/.android_secure tmpfs ro,relatime,size=0k,mode=000 0 0
/dev/block/dm-0 /mnt/asec/<apps follow> ...
