The proposal is to use a shared lib hook to completely ignore umount, that is being called by "test_UP" utility under undetermined circumstances.
I've noticed that sometimes NFS directory becomes unexpectedly unmounted, mount_nfs script kicks a reboot and then the camera dies and becomes irresponsible until a power down\up hard restart.
A similiar implementation with more checks to only ignore unmounting sdcard partition is added into the latest release 0.5.1, i'm closing this pull request.
The proposal is to use a shared lib hook to completely ignore umount, that is being called by "test_UP" utility under undetermined circumstances. I've noticed that sometimes NFS directory becomes unexpectedly unmounted, mount_nfs script kicks a reboot and then the camera dies and becomes irresponsible until a power down\up hard restart.