Asus RT-N66U, can not mount usb drive?

[RMerlin]

At least it seems able to properly detect it. The only time I had a similar journal error however was when I attempted to mount a 3 TB HDD.

Try connecting it to a PC, running chkdsk, then ejecting it before unplugging it, then connecting back to the router.

Also, try formatting it in ext3 instead of NTFS, see if that helps.

 

[MJL]

Hi Merlin,

Ran chkdsk, Reformatted (Quick Format) extFAT 128KB block size. Still no luck.

Sep 4 05:42:59 kernel: usb 1-1.1: new high speed USB device using ehci_hcd and address 6
Sep 4 05:43:00 kernel: usb 1-1.1: configuration #1 chosen from 1 choice
Sep 4 05:43:00 kernel: scsi3 : SCSI emulation for USB Mass Storage devices
Sep 4 05:43:03 kernel: scsi 3:0:0:0: Direct-Access M4-CT128 M4SSD2 0309 PQ: 0 ANSI: 5
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] 250069680 512-byte hardware sectors (128036 MB)
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Write Protect is off
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Assuming drive cache: write through
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Assuming drive cache: write through
Sep 4 05:43:03 kernel: sdb: sdb1
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Attached SCSI disk
Sep 4 05:43:03 kernel: sd 3:0:0:0: Attached scsi generic sg1 type 0
Sep 4 05:43:03 hotplug[649]: USB /dev/sdb1(unknown) failed to mount at the first try!
Sep 4 05:43:03 kernel: ufsd: use builtin utf8

 

[RMerlin]

Hi Merlin,

Ran chkdsk, Reformatted (Quick Format) extFAT 128KB block size. Still no luck.

Sep 4 05:42:59 kernel: usb 1-1.1: new high speed USB device using ehci_hcd and address 6
Sep 4 05:43:00 kernel: usb 1-1.1: configuration #1 chosen from 1 choice
Sep 4 05:43:00 kernel: scsi3 : SCSI emulation for USB Mass Storage devices
Sep 4 05:43:03 kernel: scsi 3:0:0:0: Direct-Access M4-CT128 M4SSD2 0309 PQ: 0 ANSI: 5
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] 250069680 512-byte hardware sectors (128036 MB)
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Write Protect is off
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Assuming drive cache: write through
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Assuming drive cache: write through
Sep 4 05:43:03 kernel: sdb: sdb1
Sep 4 05:43:03 kernel: sd 3:0:0:0: [sdb] Attached SCSI disk
Sep 4 05:43:03 kernel: sd 3:0:0:0: Attached scsi generic sg1 type 0
Sep 4 05:43:03 hotplug[649]: USB /dev/sdb1(unknown) failed to mount at the first try!
Sep 4 05:43:03 kernel: ufsd: use builtin utf8

Asuswrt does not support exFat. ext3 is a Linux filesystem, this is not the same thing.

 

[MJL]

It Now Works

Well that explains why the 64GB USB flash drive was not readable. It was formatted with exFAT. I have reformatted it using NTFS and the router now mounts the drive.

That's one problem solved.

The Crucial drive was formatted as an NTFS drive, but I had set the block size to 2K. I went back and set the block size to 4K and it now works - odd...

In any case, it all works now.

You've been a tremendous help - Thanks!

Michael

 

[RMerlin]

Well that explains why the 64GB USB flash drive was not readable. It was formatted with exFAT. I have reformatted it using NTFS and the router now mounts the drive.

That's one problem solved.

The Crucial drive was formatted as an NTFS drive, but I had set the block size to 2K. I went back and set the block size to 4K and it now works - odd...

NTFS is handled by a closed-source module from Paragon. Since they had to reverse engineer pretty much the whole thing (MS doesn't really publish details on NTFS), some limitations can be expected.

 

[MJL]

A very large and complex undertaking - I'm sure. It would be nice, however, if the Asus firmware provided some sort of guidance and better messages in the log to make it easier for people to figure out how to deal with this sort of thing.

Thanks again for your help!

Michael

 

[andrdnl]

I can't seem to install the Download Master, it says no usb disk detected. Can someone please look at the log?

http://pastebin.com/NXZd9KaY

Thank you!

 

[L&LD]

Have you connected a USB disk?

 

[andrdnl]

Yes, that works sometimes.

 

[dom2114]

In case it helps anyone, I had just moved from an old external USB 2.0 spinning disk drive (which worked perfectly), to a Samsung 850 Evo SSD in a USB 3.0 enclosure.
I was able to install Entware etc. on the EXT3 partition, but the router wasn't seeing the NTFS partition.

My solution was to run Easeus Partition Manager and check the drive for errors. Im pretty sure it fixed something to do with the MBR record at the very beginning of the process. Plugged the drive in once the check was complete and the NTFS partition showed up and mounted perfectly.

 

[fw85]

just stopping by to confirm that simply running chkdsk /f fixed the issue on my 3TB WD MyBook

 

[PCWIZMTL]

Also, hopefully you see this before you go through all the trouble, I had the same problem. In order to solve it, I simply disabled and re-enable Network Share. Try that first before doing anything else.

Cheers.

 

[David McIntosh]

Unable to mount my Western Digital 1TB WDBACW0010hbk-00

It mounts fine on an Apple, where it was formatted as HFS+.

Modem versions:

Firmware Version 380.59
Firmware Build Tue May 10 15:44:44 UTC 2016 merlin@9ce0a83
Bootloader (CFE) 1.0.1.9
Driver version wl0: Mar 2 2016 09:47:22 version 6.30.163.2002 (r382208)
Features mssid 2.4G 5G update usbX2 switchctrl manual_stb pwrctrl WIFI_LOGO ipv6 PARENTAL2 dnsfilter dualwan pptpd openvpnd printer modem wimax webdav rrsut cloudsync media appnet snmp tor diskutility HTTPS ssh vpnc repeater psta wl6 optimize_xbox nfsd dnssec user_low_rssi sparse rog tcode usericon stainfo cloudcheck reboot_schedule

Also, drive is plugged in to its own power supply.

Log entries on the modem are:

Sep 13 20:52:56 kernel: scsi 3:0:0:0: Direct-Access WD My Book 1130 1012 PQ: 0 ANSI: 6
Sep 13 20:52:56 kernel: sd 3:0:0:0: [sda] 1953458176 512-byte hardware sectors (1000171 MB)
Sep 13 20:52:56 kernel: sd 3:0:0:0: [sda] Write Protect is off
Sep 13 20:52:56 kernel: sd 3:0:0:0: [sda] Assuming drive cache: write through
Sep 13 20:52:56 kernel: sd 3:0:0:0: [sda] Assuming drive cache: write through
Sep 13 20:52:56 kernel: sd 3:0:0:0: [sda] Attached SCSI disk
Sep 13 20:52:56 kernel: sd 3:0:0:0: Attached scsi generic sg1 type 0
Sep 13 20:52:56 kernel: scsi 3:0:0:1: Enclosure WD SES Device 1012 PQ: 0 ANSI: 6
Sep 13 20:52:56 kernel: scsi 3:0:0:1: Attached scsi generic sg2 type 13
Sep 13 20:52:57 usb: USB /dev/sda2(hfs+jx) failed to mount At the first try!
Sep 13 20:52:57 kernel: ufsd: use builtin utf8


Any ideas or suggestions? Thanks!

 

[David McIntosh]

For others reading this:

Unable to mount ....Log entries on the modem are:
....
Sep 13 20:52:57 usb: USB /dev/sda2(hfs+jx) failed to mount At the first try!
...

As per Merlin: "The RT-N66U does not support HFS+". Sigh. Thanks.

 

[DonCatoli]

Don't even bother with NTFS, you have to perform voodoo magic to get it to work. I use a utility called fat32format to format large usb sticks to proper FAT32. While the Asus routers rock at networking the USB functionality is a frustrating joke... NTFS maybe working if the starts are in proper alignment and when you do get it to mount you get the dreaded "The remote server is not responding." then you are out of luck,

 

[pwillikers]

ASUS RT-AC66U w/ Asuswrt-Merlin 380.70

I could not get any exFAT formatted USB flash drive (2GB up to 128GB capacity) to auto-mount, whereas when reformatted as NTFS, all mounted and functioned successfully.

 

[L&LD]

@pwillikers, have you tried @john9527's RMerlin fork for your router that is much more up-to-date than the ancient version you're using?

#1 (snbforums.com)

 

[john9527]

ASUS RT-AC66U w/ Asuswrt-Merlin 380.70

I could not get any exFAT formatted USB flash drive (2GB up to 128GB capacity) to auto-mount, whereas when reformatted as NTFS, all mounted and functioned successfully.

None of the ASUS routers support exFAT....

 

[pwillikers]

Thank you for the pointer. I assume this John's Merlin Firmware fork you are recommending: https://onedrive.live.com/?authkey=!AAkJBWoo-OiyKJo&id=9332FC159A7E129!5265&cid=09332FC159A7E129

What file system would you recommend if I need to swap large, 128GB flash drives, back an forth with Windows? I've experienced NTFS drive corruption if the AC66U looses power.

FAT32 given the following?

MiniTool Partition Wizard is able to convert FAT32 partition to NTFS without data loss, but also is capable of converting NTFS to FAT32. What's more, it breaks the limit of Disk Management, and can create/format/extend a FAT32 partition to the largest extent - 2TB.

I'll give it a try and report back.

 

[pwillikers]

Hmm, that particular Minitool Partition Wizard function requires a license ($60.) I'll try another route.

I found this on Source Forge: ext2fsd. It will apparently do all versions 2, 3 and 4. Is one better that the others for the AC66U? I'll try ext2 to avoid journal overhead.