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Old 05-21-2015, 03:23 PM   #1
Devyn
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Linux USB port as a 'flash disk'


Hey All,

Is there a way to present a path or other block device to a USB port on a Linux server then have that port connected to a USB port of another device (ie USB to USB) and have it look like a flash disk?

I can plug a USB flash disk to a router just fine. But if I wanted a device to access a path off of another device int he absence of NFS or CIFS capability, that would be handy.

In other words, anyway to assign storage to a USB port in Linux? It would be akin to something like SAN with a target and source just with USB.

Cheers,
DH
 
Old 05-21-2015, 03:45 PM   #2
smallpond
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usb ports are mostly not symmetrical. Devices have different connectors than hosts. For example, hosts provide power and devices consume power. Do you have a computer with a device port?
 
Old 05-21-2015, 06:08 PM   #3
Devyn
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No, only standard USB ports provided by the MOBO.

I know I can cut power to the USB ports using the proc filesystem and manipulate many other things on them so curious if it could be set to point to a block device instead.

Cheers,
DH
 
Old 05-21-2015, 06:33 PM   #4
michaelk
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Power and physical connector hardware are one factor but desktops and laptops typically only have USB host controllers and can not be configured as a device. Many single board computers have both or an OTG port which you could use the USB gadget mass storage module. I personally have not tried doing this yet.

http://www.hardkernel.com/main/main.php
 
Old 05-22-2015, 02:39 PM   #5
jefro
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Mount the usb as an iscsi and it will then be available to remote systems.

What you actually asked was to use a usb in one system and have it attached to another system as a usb. While that may be possible in a round about way such as a virtual machine. Possibly some windows set ups can do that too.
 
  


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