hi all .

 

the illustlation is

sd card's role is booting only .

 

detail is http://forum.armbian.com/index.php/topic/977-usrlibnand-sata-installnand-sata-installsh/

I have a Armbian OPi.one and a Armbian.OPi.pc and I have found a 8GB mini sd Card fine to run some extra programs and do a bit of downloading etc.

 

I think your idea of 4gb even if it runs wont leave you any room for future stuff.

i have   the big space to save files ( about 217GB   ).

 

so my OPIpc will become media server by minidlna

becasue i watch the movies in OPIpc by TV's function of link ( TV  itself  utilize media server automatically when LAN is attached  ).

 

4GB sd card only spark armbian .

root is in 250GB usb hard disk .

 

without armbian i throw OPIpc into dustbox .

armbian is great .

 

df
Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/root      234171444 4433532 217842608   2% / <-----217G available
devtmpfs          381396       0    381396   0% /dev
tmpfs             512624       0    512624   0% /dev/shm
tmpfs             512624   58508    454116  12% /run
tmpfs               5120       4      5116   1% /run/lock
tmpfs             512624       0    512624   0% /sys/fs/cgroup
tmpfs             262144       8    262136   1% /tmp
/dev/mmcblk0p1   2275348   92352   2067424   5% /mp1<---2G available ( 92M used)
tmpfs             102528       0    102528   0% /run/user/1000

 

 

/etc/fstab is
tmpfs   /tmp         tmpfs   nodev,nosuid,size=256M          0  0
/dev/sda1    /           ext4    defaults,noatime,nodiratime,commit=600,errors=remount-ro        0       0
/dev/sda2         none swap sw 0 0
/dev/mmcblk0p1        /media/mmc   ext4    defaults        0       0
/media/mmc/boot   /boot   none    bind        0       0

 

 

so i use big swap file (6GB)

 

 free
             total       　　　used      　 free     　　shared    buffers     cached
Mem:       1025248    　 534864     490384      59412      41728     381028
-/+ buffers/cache:     　112108    　 913140
Swap:      6291452          0   　　　 6291452