Mount previously created raid via USB

i believe so. here is my terminal output:

ubuntu@ubuntu:~$ sudo su
root@ubuntu:/home/ubuntu# apt-get install lvm2
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
watershed
The following NEW packages will be installed:
lvm2 watershed
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 429 kB of archives.
After this operation, 1,331 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://archive.ubuntu.com/ubuntu/ oneiric/main watershed i386 5 [10.7 kB]
Get:2 http://archive.ubuntu.com/ubuntu/ oneiric/main lvm2 i386 2.02.66-4ubuntu3 [419 kB]
Fetched 429 kB in 2s (196 kB/s)
Selecting previously deselected package watershed.
(Reading database ... 132576 files and directories currently installed.)
Unpacking watershed (from .../archives/watershed_5_i386.deb) ...
Selecting previously deselected package lvm2.
Unpacking lvm2 (from .../lvm2_2.02.66-4ubuntu3_i386.deb) ...
Processing triggers for man-db ...
Setting up watershed (5) ...
update-initramfs is disabled since running on read-only media
Setting up lvm2 (2.02.66-4ubuntu3) ...
update-initramfs is disabled since running on read-only media
root@ubuntu:/home/ubuntu# vgscan
Reading all physical volumes. This may take a while...
No volume groups found
root@ubuntu:/home/ubuntu# vgscan
Reading all physical volumes. This may take a while...
No volume groups found