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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