usb flash drive not detected

coderasm

New Around Here
I'm running 362.2_2 on an rt-ac3100. When I plugin a small 4gig thumb drive into either usb port it does not show up at all in the web interface or in the ssh terminal. Do I need to plug in a powered usb drive? I tried running amtm to format it and amtm said it could not find a usb device. I have never used the usb ports until now. I want to install diversion and skynet. I did already format the drive as ext4 on another box.
 

L&LD

Part of the Furniture
Welcome to the forums @coderasm.

Try using a different USB drive make.
 

coderasm

New Around Here
Just tried 4 different thumb drives. None were recognized. amtm told me it could not find a compatible usb plugged in for all 4. Could there be a setting in the web interface which disables the usb ports? I've had this router for years, I may have disabled the usb ports if that option was available in the web interface.
 

ColinTaylor

Part of the Furniture
There are no options to disable the USB sockets.

Re-Plug the USB drive and then look for messages in the router's system log similar to these:
Code:
Apr 19 02:25:49 kernel: usb 2-1: new high speed USB device using ehci_hcd and address 3
Apr 19 02:25:49 kernel: hub 2-1:1.0: USB hub found
Apr 19 02:25:49 kernel: hub 2-1:1.0: 1 port detected
Apr 19 02:25:49 kernel: usb 2-1.1: new high speed USB device using ehci_hcd and address 4
Apr 19 02:25:49 kernel: scsi1 : usb-storage 2-1.1:1.0
Apr 19 02:25:50 kernel: scsi 1:0:0:0: Direct-Access     USB      2.0 Flash Drive  1.00 PQ: 0 ANSI: 0 CCS
Apr 19 02:25:50 kernel: sd 1:0:0:0: Attached scsi generic sg1 type 0
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] 2031616 512-byte logical blocks: (1.04 GB/992 MiB)
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] Write Protect is off
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] Assuming drive cache: write through
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] Assuming drive cache: write through
Apr 19 02:25:50 kernel:  sdb:
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] Assuming drive cache: write through
Apr 19 02:25:50 kernel: sd 1:0:0:0: [sdb] Attached SCSI removable disk

Does the drive show up on the Network Map page?

Untitled.png
 

L&LD

Part of the Furniture
You are on RMerlin firmware 386.2_2, correct?

Did you perform a full reset to factory defaults recently? Without restoring a saved backup config file?

What different brands of USB drives have you tried?
 

coderasm

New Around Here
@ColinTaylor there are no messages in the system log after re-plugging the drives back in. The web interface does not show a usb device plugged in.
@L&LD Yes I am on the newest version. I have not done a factory reset. I'll make a backup first and reset if you think I should. I have a mixture of pny and sandisk thumb drives I am using.
 

dosborne

Very Senior Member
It is possible that the usb ports in your router have failed. You could try using a usb hub to see if that works. The reset suggested above would be a good thing to try though.
 

coderasm

New Around Here
Tried the full reset. Still did not work. @dosborne yes the ports may have failed. I have never used them the whole time I've had the router. I will try a powered usb device next.
 

EventPhotoMan

Very Senior Member
Tried the full reset. Still did not work. @dosborne yes the ports may have failed. I have never used them the whole time I've had the router. I will try a powered usb device next.
I just upgraded to 386.2.2; and I just lost the USB stick.

I've tried everything mentioned in this thread.

But I do have this in my log file.

Apr 19 23:10:06 kernel: usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd
Apr 19 23:10:06 kernel: usb-storage 2-1:1.0: USB Mass Storage device detected
Apr 19 23:10:06 kernel: scsi host0: usb-storage 2-1:1.0
Apr 19 23:10:07 kernel: scsi 0:0:0:0: Direct-Access PNY USB 3.0 FD PMAP PQ: 0 ANSI: 6
Apr 19 23:10:07 kernel: sd 0:0:0:0: [sda] 483655680 512-byte logical blocks: (248 GB/231 GiB)
Apr 19 23:10:07 kernel: sd 0:0:0:0: [sda] Write Protect is off
Apr 19 23:10:07 kernel: sd 0:0:0:0: [sda] Mode Sense: 2b 00 00 08
Apr 19 23:10:07 kernel: sd 0:0:0:0: Attached scsi generic sg0 type 0
Apr 19 23:10:07 kernel: sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
Apr 19 23:10:07 kernel: sda: sda1
Apr 19 23:10:07 kernel: sd 0:0:0:0: [sda] Attached SCSI removable disk

Any suggestion why my router RT-AX86U cannot mount the drive?

Its worked before the upgrade.
 

EventPhotoMan

Very Senior Member
Well I resolved my issue.

need to formate the USB stick with the router firmware and not the computer desktop.

just reinstalled entente and all the scripts.

done.
 

coderasm

New Around Here
My ports never worked. I upgraded to a RT-AX86U. I'll use the ports on the new router and use the old rt-ac3100 as a secondary mesh router.
 

Persephale

New Around Here
Before proceeding, and if your USB drive is connected to the front panel of the PC via some USB hub or USB extension cable, I strongly recommend trying to connect it directly to the USB connector, in the case of a desktop computer - on the back panel. At the same time, it may make sense to check the operation of the drive on both the USB 3.0 and USB 2.0 connectors, regardless of which USB version the drive supports. If the USB flash drive does not work when connected to the front USB connector on the PC, check that the front panel is connected correctly to the motherboard. And if everything remains unchanged, contact specialists. In my case, it was the guys from the company salvagedata.com, and in yours, any other specialists who understand this.
 
Last edited:

Similar threads

Latest threads

Sign Up For SNBForums Daily Digest

Get an update of what's new every day delivered to your mailbox. Sign up here!
Top