automount external hdd

[thufir]

I'm trying to auto-mount an external hdd enclosure with nautilus:

thufir at doge:~$ 
thufir at doge:~$ sudo mount -t ext3 /dev/sdb1 /mnt
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
thufir at doge:~$ 
thufir at doge:~$ dmesg | tail
[38425.298930]  entry_SYSCALL_64_fastpath+0x1e/0xad
[38425.298932] RIP: 0033:0x7f32d242e987
[38425.298934] RSP: 002b:00007fffd3152ed8 EFLAGS: 00003246 ORIG_RAX: 
0000000000000010
[38425.298936] RAX: ffffffffffffffda RBX: 000055ce5c648670 RCX: 
00007f32d242e987
[38425.298938] RDX: 00007fffd3152f10 RSI: 00000000c05064a7 RDI: 
000000000000000e
[38425.298939] RBP: 00007fffd3152f10 R08: 000055ce5c648720 R09: 
0000000000000000
[38425.298941] R10: 0000000000000000 R11: 0000000000003246 R12: 
00000000c05064a7
[38425.298942] R13: 000000000000000e R14: 00007fffd3152f10 R15: 
000000000000000e
[38425.298944] ---[ end trace 71aae897cab69e2e ]---
[38737.380862] EXT4-fs (sdb1): VFS: Can't find ext4 filesystem
thufir at doge:~$ 


which shows up with fdisk:

thufir at doge:~$ 
thufir at doge:~$ sudo fdisk -l
Disk /dev/sda: 74.5 GiB, 80026361856 bytes, 156301488 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x3b9b7b5e

Device     Boot Start       End   Sectors  Size Id Type
/dev/sda1  *     2048 156301311 156299264 74.5G 83 Linux


Disk /dev/sdb: 55.9 GiB, 60011642880 bytes, 117210240 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xe833c75e

Device     Boot Start       End   Sectors  Size Id Type
/dev/sdb1        2048 117210239 117208192 55.9G 83 Linux
thufir at doge:~$ 


It was working fine until I used unetbootin:

https://askubuntu.com/q/947310/45156







I think it's just formatted oddly.  Or putting a bootable .iso on it 
flipped something.  Really just want to format it or something.  Or it 
the .iso wasn't installed correctly by yours truly.


thanks,

Thufir