Thank you for a quick reply well appreciatedby slb - uBoot
I have brand new Pogoplug v4.3.1 and trying to follow your guidelines as suggested I checked for bad sectors and found following: /bin/dmesg | grep -i 'bad' [ 1.010000 ] scanning device for bad blocks [ 1.050000 ] Bad eraseblock 786 at 0x000006240000 [ 1.370000 ] UBI: number of bad PEBs: 1 [ 1.410000 ] Uby slb - uBoot