I know Iv'e written about sata issues, but today my today using ssh I noticed some commands didn't work, so I
cd /mnt/opt/bin which I got the can't cd to.....
I discovered that both dirs /opt and /jffs had gone, so I booted to linux and checked the drive under linux with gparted, no error reported, at this stage all I dd-wrt could see was my two drives in my DD-WRT v3.0-r33772 std (11/16/17) connected via esata. After rebooting my ROUTER
my sata discs had gone and my USB dir reapeared
Also after rebooting I can't ssh unless I disable ssh and re-enable it and apply. I also noticed how the gui and mount does not also id the fs where dmesg gives the correct fs