I got a different message!

wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so

I typed in dmesg and got a whole bunch of this:

[1595104.463475] Inbound IN=eth0 OUT= MAC=00:1b:b9:f3:25:21:00:1b:d5:fe:82:e2:08:00 SRC=74.183.255.192 DST=24.131.144.148 LEN=48 TOS=0x00 PREC=0x20 TTL=110 ID=15968 DF PROTO=TCP SPT=59823 DPT=51413 WINDOW=16384 RES=0x00 SYN URGP=0
[1595110.472029] Inbound IN=eth0 OUT= MAC=00:1b:b9:f3:25:21:00:1b:d5:fe:82:e2:08:00 SRC=74.183.255.192 DST=24.131.144.148 LEN=48 TOS=0x00 PREC=0x20 TTL=110 ID=15991 DF PROTO=TCP SPT=59823 DPT=51413 WINDOW=16384 RES=0x00 SYN URGP=0
[1595121.208421] Inbound IN=eth0 OUT= MAC=00:1b:b9:f3:25:21:00:1b:d5:fe:82:e2:08:00 SRC=114.79.55.68 DST=24.131.144.148 LEN=48 TOS=0x00 PREC=0x20 TTL=107 ID=47989 DF PROTO=TCP SPT=25518 DPT=51413 WINDOW=16384 RES=0x00 SYN URGP=0
[1595124.304065] Inbound IN=eth0 OUT= MAC=00:1b:b9:f3:25:21:00:1b:d5:fe:82:e2:08:00 SRC=114.79.55.68 DST=24.131.144.148 LEN=48 TOS=0x00 PREC=0x20 TTL=107 ID=48264 DF PROTO=TCP SPT=25518 DPT=51413 WINDOW=16384 RES=0x00 SYN URGP=0

Tail appears to be something that might take awhile.