I understand that part of RAM need to be allocated for video but dropping from advertised 512M to ~340M is too much. If I don't use HDMI or LCD and connect only through Ethernet, how can I increase available memory?
$ free
total used free shared buffers cached
Mem: 346232 251956 94276 0 11112 128984
-/+ buffers/cache: 111860 234372
Swap: 0 0 0
$ dmesg | grep Memory:
[ 0.000000] Memory: 448MB = 448MB total
[ 0.000000] Memory: 346060k/346060k available, 112692k reserved, 0K highmem
https://www.olimex.com/forum/index.php?topic=2509.msg11176#msg11176 (https://www.olimex.com/forum/index.php?topic=2509.msg11176#msg11176)