you might want to add on slide 27:

use “dmsg” to find the /dev/XXX where your usb disk got mounted – in my case /dev/sdt1. See output of dmesg command below.

cheers
Chris.

390.050000] usb 1-1.3: new high speed USB device using orion-ehci and address 4
[ 390.240000] scsi7 : usb-storage 1-1.3:1.0
[ 395.250000] scsi 7:0:0:0: Direct-Access WD Elements 25A2 1004 PQ: 0 ANSI: 6
[ 395.250000] sd 7:0:0:0: Attached scsi generic sg19 type 0
[ 395.270000] sd 7:0:0:0: [sdt] Spinning up disk….ready
[ 396.280000] sd 7:0:0:0: [sdt] 1953458176 512-byte logical blocks: (1.00 TB/931 GiB)
[ 396.280000] sd 7:0:0:0: [sdt] Write Protect is off
[ 396.280000] sd 7:0:0:0: [sdt] Mode Sense: 47 00 10 08
[ 396.280000] sd 7:0:0:0: [sdt] Assuming drive cache: write through
[ 396.280000] sd 7:0:0:0: [sdt] Assuming drive cache: write through
[ 396.280000] sdt:
[ 396.390000] Alternate GPT is invalid, using primary GPT.
[ 396.390000] sdt1
[ 396.410000] sd 7:0:0:0: [sdt] Assuming drive cache: write through
[ 396.410000] sd 7:0:0:0: [sdt] Attached SCSI disk
[ 400.520000] active port 0 :139
[ 400.520000] active port 1 :445
[ 400.520000] active port 2 :20
[ 866.940000] ufsd: driver U82 (Mar 31 2011 01:37:17) LBD=OFF with ioctl loaded at bf1a6000
[ 866.940000] NTFS read/write support included
[ 866.940000] Hfs+/HfsX read/write support included

Commands are based on firmware version so you must check this first. Also be sure that you only type right commands (You can copy these commands and right click on on putty to paste)

One last thing, this is not Qnap global offical website and you can always request help from your local Qnap tech departman or offical global Qnap support team (www.qnap.com) . We can fix this kind of cases less than 10 minutes