VoCore Forum

When I want to power off VoCore I can type halt or poweroff, however the system performs a reboot, not a halt. So, what can I do to power off the VoCore from usb power plug without losing data (i.e while a script is writing data to disk).

For now there is no such function. This chip do not have halt register but only a reboot register.

It seems to be a long uptime chip

Is there anything actually writing to persistent storage? With the standard VoCore image I suspect you'll find there isn't. If you have added anything that does, I suppose you could stop that and then call sync to flush the caches; at that point it should be safe to power it off.

for example, if I write to a file in root directory, it is persistent during power on/off cycles.

Well, you're right. If I know when a powerdown will be performed (i.e detecting a low battery issue) I can stop cleanly the program which is writing to disk.