Cannot detect USB drive after firmware upgrade

[vkolli]

I recently upgraded my RT-AC66U to Merlin 380.69_2. I was running the stock firmware earlier. After the firmware upgrade, USB drive that I was using earlier with the same router is not being detected.

I was using USB 3.0 1TB flash drive for a long time with the same router and have lot of data on the drive. So I cannot reformat it. System log shows the drive as attached (Inateck ASM1153E in the log below) but the GUI shows that no drive is detected.

This is what I see in the system log:
Mar 25 07:43:00 kernel: usb 1-1.1: new high speed USB device using ehci_hcd and address 4
Mar 25 07:43:01 kernel: usb 1-1.1: configuration #1 chosen from 1 choice
Mar 25 07:43:01 kernel: scsi1 : SCSI emulation for USB Mass Storage devices
Mar 25 07:43:03 kernel: scsi 1:0:0:0: Direct-Access Inateck ASM1153E 0 PQ: 0 ANSI: 6
Mar 25 07:43:03 kernel: sd 1:0:0:0: [sda] Attached SCSI removable disk
Mar 25 07:43:03 kernel: sd 1:0:0:0: Attached scsi generic sg0 type 0

I connected a 16GB USB stick to the same USB port and that is detected and mounted OK. After I connect the USB stick I see this in system log:

Mar 25 12:34:18 kernel: usb 1-1.2: new high speed USB device using ehci_hcd and address 5
Mar 25 12:34:18 kernel: usb 1-1.2: configuration #1 chosen from 1 choice
Mar 25 12:34:18 kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Mar 25 12:34:20 kernel: scsi 2:0:0:0: Direct-Access SanDisk Cruzer Facet 1.26 PQ: 0 ANSI: 5
Mar 25 12:34:20 kernel: sd 2:0:0:0: [sdb] 31266816 512-byte hardware sectors (16009 MB)
Mar 25 12:34:20 kernel: sd 2:0:0:0: [sdb] Write Protect is off
Mar 25 12:34:20 kernel: sd 2:0:0:0: [sdb] Assuming drive cache: write through
Mar 25 12:34:20 kernel: sd 2:0:0:0: [sdb] Assuming drive cache: write through
Mar 25 12:34:20 kernel: sdb: sdb1
Mar 25 12:34:21 kernel: sd 2:0:0:0: [sdb] Attached SCSI removable disk
Mar 25 12:34:21 kernel: sd 2:0:0:0: Attached scsi generic sg1 type 0
Mar 25 12:34:21 hotplug[5371]: USB vfat fs at /dev/sdb1 mounted on /tmp/mnt/NONE
Mar 25 12:34:21 usb: USB vfat fs at /dev/sdb1 mounted on /tmp/mnt/NONE.
Mar 25 12:34:21 rc_service: hotplug 5371:notify_rc restart_nasapps
Mar 25 12:34:21 FTP_Server: daemon is stopped
Mar 25 12:34:21 Samba_Server: smb daemon is stopped
Mar 25 12:34:21 miniupnpd[944]: shutting down MiniUPnPd
Mar 25 12:34:23 Samba_Server: daemon is started
Mar 25 12:34:24 miniupnpd[5415]: HTTP listening on port 33693
Mar 25 12:34:24 miniupnpd[5415]: Listening for NAT-PMP/PCP traffic on port 5351

I spent much time searching for the solution. Any help is appreciated.

 

[sfx2000]

I recently upgraded my RT-AC66U to Merlin 380.69_2. I was running the stock firmware earlier. After the firmware upgrade, USB drive that I was using earlier with the same router is not being detected.

Did you remove the external drive before updating?

Just saying...

 

[vkolli]

No I did not ... Didn't occur to me that I have to. Would that have corrupted the disk somehow. I am now trying to access to disk from my mac but not able to see it from my mac either. It was originally formatted as EXT3

 

[vkolli]

Ignore my comment about not being able to access the disk from my mac. Of course I was not able to, since it is EXT3 disk. I am able to see the disk now from my mac.

Any suggestions on how to fix it to be accessed from my ASUS router.

 

[Dan Seoane]

Bump.... I am having the exact same issue... any help would be appreciated..

 

[GuruGuy]

Don't see any resolution to this. Is the takeaway that USB drives HAVE to be disconnected before a firmware upgrade; Whether Merlin or Stock?