[PROBLEM] btrfs: mmcblk0p2 checksum verify failed

[mk01]

(3rd Dec, 2013 03:54 AM)ErickP Wrote:  Sorry forgot to mention that the pi is powered by an external 2amps usb hub. and my usb hard disk is 1tb in size, also connected to the external usb hub.

mod_scsi sync/async is related to usb bus scanning, not to operations. sync mode will simply cause kernel loading to wait for devices, async will not.

if you want to try USB stick don't follow USB how-tos related to XBian's prior B2. just flash img file to usb stick and change cmdline.txt root=/dev/sda2.