[systemd-devel] making persistent tmpfs folders with systemd

[bobafetthotmail]

I have a script that allows me to |mount| a folder to |tmpfs|, while 
bind-mounting the same folder to another location, so I can sync the 
contents (on startup, shutdown, and when needed) between the |tmpfs| and 
the original folder on system drive.

I use it for folders that see many writes, but whose data should be 
preserved after a reboot.

Mostly to use a USB flash drive or SD card as system drive, while 
running programs that aggressively write round-robin databases or 
similar small-size-high-write files.


Sooo..... I was wondering if systemd allows me to do something like that 
natively.

I did look at the tmpfs modules of systemd, but from what I understood 
it does deal with making non-persistent tmpfs on the fly, clean 
temporary files from a folder and so on.

Is there a persistency option I did miss perhaps?


-Albert


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