##Problem description Using an Arietta G25 with 256 MByte of RAM just 128 MByte are visible by typing:

root@arietta:~# free
             total       used       free     shared    buffers     cached
Mem:        123220      64184      59036       9648       4188      43788

##Solution Replace boot.bin file on the first microSD partition with the file boot256.bin

root@arietta:~# cd /boot
root@arietta:/boot# cp boot256.bin boot.bin
root@arietta:/boot# reboot