[FS#821] sysupgrade doesn't work on Linksys WRT3200ACM (mvebu)

[LEDE Bugs]

The following task has a new comment added:

FS#821 - sysupgrade doesn't work on Linksys WRT3200ACM (mvebu)
User who did this - Matthias Schiffer (NeoRaider)

----------
New version pushed.

I wonder though why /tmp/syscfg is mounted all the time, and not just shortly during boot and sysupgrade like it is done with the /boot partition on many targets.
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=821#comment2724