Cant mount external USB Device?

After Os X Lion installation on MacBook Pro, external devices dont mount?

What kind of external USB device are you having a problem with?

Similar Messages

Mac Pro no longer mounts external usb devices

Hi there,
Last week my mac pro stopped mounting my ipod shuffle as a disk (i was using it like a usb memory stick), i thought it was a problem with the shuffle and left it aside. But just yesterday the mac stopped mounting my external lacie 500gb disk. I had never had any problems before this.
I then tried both the shuffle and external hd on my powerbook g4. They work perfectly!
I then thought it might have been a problem with the usb ports on the mac pro - although all my other usb devices were still working - so i booted into xp with bootcamp, and the devices were recognised in xp perfectly.
After searching various threads on different forums the general idea for this problem seemed to be to reinstall osx, which i have just done, and no joy. Im still not able to mount either of these devices.
System profiler sees the devices, but thats it.
Also, i recently bought a new usb memory stick (as i thought the shuffle was dead), this mounts and works perfectly!
Anyone got any ideas?!
Thanks

Yes, i did the combo update immediatly after reinstalling osx and before pluggin in the usb device.
The problem developed just before the release of 10.4.9, so i dont think it was the update that did it.
I've only just got this MP back from Apple. The PSU had to be replaced. It took them nearly 3 weeks to do

OS refuses to mount external USB flash drive. Says a piece of OS software is missing.

OS refuses to mount external USB flash drive. Says a piece of OS software is missing. The flash drive (thumb drive) usually lights up but does not go through the flashing on/off that was tyjpical when first inserting it.
I tried an external hard drive and got the same results; that is, no result, as if it wasn't connected. No icon appears on the desktop and no device shows up in the sidebar. It (10.6.8, Mac Pro Duo) had worked perfectly before this, of course.

Hmmmmm,,,,
Disconnected all peripherals. Did a Safe Mode startup and that worked fine. Very limited features, of course.
Started up with the Snow Leopart (10.6.3) disk. Used disk utility to verify permissions and ran disk repair on all three internal HDs. No repairs needed.
Ran Drive Genius and did the same things, as a double-check.
Plugged in the flash drive (thumb drive) and it came up fine (still operating the OS from the Sno-Leop disk).
I wanted to re-start with the disk and bring up the Apple Hardware Test as you suggested. I had lots of kernal panics on a previous machine, a G4 desktop, and has used that at that time (with a 10.2 or 10.4 disk). thought I remembered that you hold the D key down when starting up from the disk and it would open the hardware test, but either I remember wrong or it works different in 10.6 because it was just a normal startup.
How do I get to the Hardware Test on the 10.6 Snow Leopard disk?
Restarted without the disk and the Mac Pro desktop still showed the gray screen with what Apple calls the "prohibitory" sign, the circle with the diagonal line in it.
I decided to load the OS disk onto HD 3 and designate that as the startup disk, which I did and it works fine. The USB flash drive loads properly, opens, etc. just as it should. I haven't yet plugged in the peripherals (scanner, printer, second DVD/CD recorder, tablet, an external drive, or connected to ethernet yet. Will do those one at a time and see if any of them casued a problem.)
Am I right in thinking:
A) HD One might have bad sections. I didn't defrag with Drive Genius (26% fragged) or look for bad blocks, which I'll probably do tonight.
or B) the OS has been slightly corrupted and may need reloading
or C) I have a virus or conflict (though I haven't added anything new lately). I do have the ButtonManager loading problem for Mac. which is talked about on MacRumors site, etc. but the timing of its appearance and this problem don't match.
Apologies for being so wordy; want to get all information that may be helpful. I appreciate your interest.

NFS export external USB device fails

I am trying to NFS export a FAT32 formatted external USB device, which fails with the error:
/sbin/nfsd: Can't export /Volumes/<external>: Operation not supported (45)
I am able to export internal/HFS drives, which have the "Owners Enabled: Yes" attribute, and therefore assume I need to set the flag accordingly on my external drive.
Despite the fact that the device has been assigned a uuid (it appears to be in place in .fseventsd and running 'repair disk' echos it in syslog), I get this error when running vsdbutil:
vsdbutil: Couldn't update volume information for '/Volumes/<external>/': Invalid argument
vsdbutil: no valid volume UUID found on '/Volumes/<external>/': Invalid argument
And diskutil returns this:
Permissions are not enabled on the disk (-9973)
I attempted to add the uuid to /var/db/volinfo.database in order to set the permissions there, to no effect.
I don't believe that I am the only person who has attempted this, but I can find no evidence to the contrary. Thank you.

NFS exporting requires specific NFS serving support from the file system.
Unfortunately, the "msdos" file system implementation doesn't currently
support NFS exporting.
If you'd like that support added, I would strongly encourage filing a
bug report/enhancement request with Apple:
http://developer.apple.com/bugreporter/
HTH
--macko

MBP Does Not Recognize External USB Devices

MBP does not "see" external USB devices (such as Garmin Nuvi GPS) or any thumb drive. No external USB devices show up in Finder nor does Disk Utility see them. No cable issues. Have tried restarting several times, but to no avail. This MBP used to recognize these USB devices, but no longer do so.
I have seen this question posed several times in forum, but no suitable answer. Don't know if it is H/W or S/W problem.

Hi Terry Temple
Is there at least any power going to the USB ports? ( as in if for example you plug in a USB light, will it switch on? )
If there is power in the USB ports it might be a software problem.
Try resetting the SMC see link: http://support.apple.com/kb/HT1411
also try re-set the PRAM see link: http://support.apple.com/kb/HT1379
However if you do not have any power at all it probably is a hardware problem.
Is it still under warranty?
Regards,
Andrew
Message was edited by: iddrew

[SOLVED]failure to mount external usb drive, possible hardware malfu

Please excuse me for posting this in the Arch forums, but I'd appreciate at least a point in the right direction. Every Google hit I came up with had a dubious solution like "reinstall USB drivers". I've never had an external drive fail on me yet, and I think this might be a sign of one. I recently moved and set up a 750gb WD external drive connected to this laptop running Arch and WinXP. Drive was working fine until this morning. I see it's entry in Thunar, but when I try to mount it:
Failed to mount "xxx".
WARNING: Couldn't set locale to 'en_PH.utf8' thus some file names may not
be correct or visible. Please see the potential solution at
http://ntfs-3g.org/support.html#locale
Error opening '/dev/sdb1': Permission denied
Failed to mount '/dev/sdb1': Permission denied
Please check '/dev/sdb1' and the ntfs-3g binary permissions,
and the mounting user ID. More explanation is provided at
http://ntfs-3g.org/support.html#unprivileged.
I got an entirely different error msg in Arch before, suggesting a chkdsk but I don't remember beyond that.
In Windows, I get USB device not recognized. I've tried turning the thing off and back on, making sure it's connected and swiping cables, rebooting Arch, nothing. Is it fried? Also, how does one even run a chkdsk on a drive that can't be mounted in Windows?
Thanks for the assistance.
Last edited by elephantos (2008-07-11 04:59:28)

Thunar is saying it's a permission problem... have you tried manually mounting it?

Cannot mount external USB drive

During a recent update I remember pacman asking about replacing some package with another package to handle disk mounting. I think the added package was "gnome-volume-manager" or "gnome-disk-utility" (or both). I didn't see any postings describing problems with doing this, so went ahead and allowed the change. Now it's a few days later and I find I cannot mount an external USB hard drive anymore. It has an entry in fstab, and although I have tried mutiple edits of the device to associate the drive with, nothing works.
The disk used to associate with /dev/sdb1. Now this device no longer exists. Here is what has happened to my /dev/sd* entries:
brw-rw---- 1 root disk 8, 0 2009-10-27 11:08 /dev/sda
brw-rw---- 1 root disk 8, 3 2009-10-27 11:08 /dev/sda3
brw-rw---- 1 root disk 8, 1 2009-10-27 11:08 /dev/sda1
brw-rw---- 1 root disk 8, 2 2009-10-27 11:08 /dev/sda2
brw-rw---- 1 root disk 8, 4 2009-10-27 11:08 /dev/sda4
brw-rw---- 1 root storage 8, 16 2009-11-04 13:00 /dev/sdb
Trying to force association with "/dev/sdb" "/dev/sda5" (or some other number not in use) or "sdb1" (or 2,3,4, whatever) just yields "special device ... does not exist".
Does anybody know how to deal with this?
Does anybody know what package(s) I replaced when the update in question took place? I think I'd like to reverse whatever happened.
And on another note, I think another gnome-based package also recently replaced a package relating to printing. Yesterday I discovered I have printing problems too:
At first there were no printers found. Although cups is supposed to start according to rc.conf, cupsd was not running. I started it manually and then all the printers showed up again, though I cannot print duplex (again, worked fine before). What is going on with these gnome packages?!? Anyone know which package(s) I need to remove (and then what to put back) to make printing work like it used to also?
thanks much.

oddly, fdisk -l shows nothing, even for disks which are mounted (eg. /dev/sda4). when I insert a standard USB thumb drive, the following show up properly:
brw-rw---- 1 root storage 8, 32 2009-11-05 10:50 /dev/sdc
brw-rw---- 1 root storage 8, 33 2009-11-05 10:50 /dev/sdc1
and I am able to mount and use the drive as usual.
The external drive I've been struggling with has xfs for filesystem type. After using the thumb drive, /dev/sdb showed up spontaneously, but no /dev/sdb1. attempting to mount gives:
mount: /dev/sdb is not a valid block device
or
mount: special device /dev/sdb1 does not exist
depending on which device is specified in fstab.
I am thinking that either a) my ability to mount xfs filesystems has somehow been hosed, or b) there is something wrong with drive, which must have spontaneously failed very recently (it is less than 1 yr old, but this happens from time to time).
If the drive is okay, any ideas about how mounting xfs filesystems could have been broken by recent upgrades?
btw, the fstab entry (which worked fine until a couple days ago) is: /dev/sdb1 /mnt/external_1 xfs rw,noauto,user,exec 0 0

Mounting external USB at boot on ppc mac mini 10.4 Tiger

Hello,
I'm trying to find out the best way to mount an external USB HD on boot, on Tiger. The default behaviour of the system is to mount external devices when a specific user logins. That's smart, because in theory we don't need to lose time mounting the device on boot first, and secondly MacOSX will mount the external device using the user's specific permissions to access the data.
My problem is that I don't want to wait for a login, I want to mount the external device as soon as the system starts. The system is a mac mini tiger 10.4.11 with macports installed. I manage it via "Remote Desktop" and (mostly) ssh.
I'm thinking about creating a wrapper and a launchd (plist) file.
Is there another way, using the kinda weird fstab syntax on using cli commands like "automount"?
Thanks in advance

https://discussions.apple.com/message/2511748#2511748

Disk won't mount - Unknown USB Device (Link in Compliance Mode)

I have an HP Envy DV7 (dv7-7243cl ) with Windows 8 Pro x64. My Western Digital 2 terabyte My Book USB3.0 external drive periodically won't mount ( sometimes it will, sometimes it won't). The drive has its own power source.
When this happens Windows device manager shows - Unknown USB Device (Link in Compliance Mode). This can happen if the system is up and running and I plug the drive into the USB port or on system startup where the drive is already plugged in.
Any clue how to fix this?
Other details:
Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
12 Gig memory
Intel(R) HD Graphics 4000
System board 181C 52.24
Bios F.26

Well, the problem is that - as outlined in one of the articles I linked to - some USB devices will not work in Safe Mode; that may have to do with the fact the Safe Mode is only meant to be a troubleshooting tool, not a regular way of booting up. Did you have the USB devices attached while upgrading to 10.6? That would also be a problem - I unplug everything except keyboard and mouse.And, did you repair permissions after the upgrade? If not, do it now.
And, the other problem is the fact that you wait 1 - 2 years before addressing the issue; when you had it in for the last repair and it still exhibited the same problems afterwards, you should would have taken it back, possibly with some screenshots, exact notes of how/when/error messages, etc. and insisted on having it fixed or replaced.
So, I'd run the Apple Hardware Test (after you make sure that you have a complete backup) - instructions here:
http://support.apple.com/kb/HT1509
Report back with whatever messages you wind up with.

Mounting external USB CD drive on Mac Book Pro

Hi all,
Hoping you can help.
My late 2008 MacBook Pro has been near bulletproof for me however the one weakspot (besides old OS) is the CD drive.
It can function, intermittantly, but not reliably enough for me to install my new Snow Leopard CD and upgrade the IOS.
So I have been trying to mount an external USB CD Drive - the MacBook Air Superdrive.
I can see it in the System Profiler, it draws 500 mA current, which apparently is all it requires.
However I cannot see it in Disk Utility.
I hear it move and power up on reboot, but the CD drive simply never mounts. It should mount, there is a CD I've accidentally left in there.
'tis very annoying.
Is there any way to get this external CD drive mounted properly?
Appreciate any assistance you can offer.
Many thanks...

Which drive?
In the built in drive, I can occasionally insert a CD and it will mount and read okay, but most of the time it simply spits the CD out - it also does this with CDs it has played happily with for a while (such as my Snow Leopard CD which I've been trying to install from ;P )
In the external drive, yes, there is a CD in there, however it was in there from when I had the CD drive plugged into my Mac mini server (server now broken, so ejecting CD is difficult - that's a whole other kettle of fish...)
I don't understand why Apple System Profiler can see the external CD drive, and it reports no issues, but yet Disk Utility does not.
Do I need to find a way of disabling the built in drive somehow before OS X will recognise a different CD drive?

Mounting external usb hd

Hi, I'm having problem mounting my external usb hard.
When I plug in the hd, I get an error message that I need to format. When I open Disk Utility and try to partition and format, it open a window saying "Preparing drive...unmountnig old volumes" but it has not progress for the past hour. I can see the drive under Apple System Profiler but this external USB drive is just not formatting... nothing seems to be happening. Please help
Thank you

Hi,
I have done that as well, formating with zero bit but it still didn't do anything on the status bar. Also, the green light on the hard drive is on, but its not turning red when I format. I dont mind the wait but it doesnt seem to be progressing, even on the status bar.
Also, I tested the drive on OS 10.4 and it IMMEDIATELY mount..do I need to upgrade my system? I hope not... its too $$$...
Thank you

Satellite A200: Cannot use external USB devices properly

I encountered a problem with my Toshiba notebook and i can't fix it and I am in need your help please..
The problem is that when i connect a USB portable device (external USB harddisk , iPod ,Flash memory ..etc) with more than 8GB of Memory..
It's not properly installed in device manager and appears under "universal serial bus controller ".
But it doesn't say that it's an unknown device. It appears normally with its name, but it's not properly installed (it doesn't say that either ) where it is supposed to be under a specific category (harddisk under "disk drives" , camera under "imaging devices " and so on )
And i can't use the device because the HDD doesn't appear in "My computer" and my iPod can't be used
I'd like to inform you that this problem is with all USB devices with more than 8GB of memory.
Not just one device. I tried many devices to make sure that it's not a problem with the device.
So it's a problem with my laptop and i installed Windows many times with no progress.
Thanks for your help in advance ..

Is it XP or Vista?
If its XP, ensure you have at least Service Pack 2.
This hotfix may help XP see high capacity media:
http://support.microsoft.com/kb/934428
but that wouldn't really affect external USB HDD's.

Cannot boot from external USB device

Hi,
I have an iMac with a superdrive that is not working. This gives me a lot of trouble, because I want to install windows.
Some month ago, I bought an external USB DVD drive, and hoped that it would help. But I quickly experienced that it did not, since I could not get boot camp to use it.
Today, I was sure that I found a good solution. I ran into a site that explains how to use en external DVD to install windows on macbook air which have no internal DVD.
http://www.tech-recipes.com/rx/9136/macbook-air-install-windows-7-with-boot-camp -without-an-external-dvd-drive/
Unfortunately this do not work - for me and my iMac.
First I installed the rEFIt tool and this works fine. The external DVD shows up as a bootable device.
But when I try to start the windows installer from the external DVD, the system just hangs and shows a windows logo with no color. This operation I carry out by selecting the external DVD in the eEFIt menu.
Any suggestions will be appreciated.

I don't know about the link you gave, I can only pass on my experience.
I made my bootable Windows7 X64 install disk by this method:-
"This method is used to create a new install disk if you have your authentic Windows 7 disk. Don't sweat it; it's much easier than it looks.
Note: you will need to do this on a PC
In your C drive, create these two folders: c:\windows7exe c:\windows7dvd
Go to this link http://rapidshare.com/files/297067205/oscdimg.exe and download Oscdimg.exe. Place it into c:\window7exe folder
Insert your Windows 7 disk into your DVD drive For this example, we will refer to it as the D drive.
You need to open a DOS prompt window. Do this by going to start/programs/accessories/command prompt
Your default command prompt will look something like C:\Users>.
At the prompt type cd c:\windows7exe
Your command prompt should now look like c:\window7exe>
At the command prompt, type in exactly (or copy and paste):
oscdimg.exe -n -m -bd:\boot\etfsboot.com d:\ c:\windows7x64.iso
Note: the letter d in the above command refers to your DVD drive, change it if your DVD drive is labled with a different letter.
Press Enter. This will begin creating a new disk image. You should see a response in the DOS window that displays its progress.
When the process is complete, you will find a new disk image of your Windows 7 disk in the folder labeled c:\windows7X64
Now that you have a new disk image, you need to burn it onto a disk using ImgBurn. This is a free utility which you can download from here: http://www.imgburn.com/index.php?act=download
Place a blank DVD into your DVD RW drive.
Launch ImgBurn and select "Write image file to disc". In the Source window, find your newly burned image in the c:\windows7X64 folder. Click on the disc icon at the bottom of the window to begin the burning process.
Voila! You have a new Windows 7 installation disk which will install with no problems. "
.....which is on this thread
May not be any use to you without an internal DVD RW which works.
In your shoes I would really want to get my internal superdrive working.
A quick look at iFixit suggests the iMac uses a standard laptop DVD RW which are readily available, but perhaps I am missing something.

How do you measure the voltages in an external usb device, such as a usb missile launcher?

Any Suggestions?

USB is a funny thing. Typically 5V max provided by the client PC. A lot of devices use 3.3V , The current the USB device will use is determined during enumeration. And the client device negotiates this with the PC. As was stated in the duplicate post you made a few days ago, Your missile launcher will need either LV drivers provided by the manufacture or a DLL file OR some way of knowing the communication protocol of the missile launcher.
Alan

[Solved] Can't mount specific usb device after kernel upgrade

So, hi everyone
I've got a usb device which works on other systems (usb audio player, android tablet) but not on my archlinux htpc.
System is up to date, the usb stick worked a few days ago (here shown as /dev/sdc), relevant infos (shortened):
$ uname -a
Linux arch247 3.10.3-1-ARCH #1 SMP PREEMPT Fri Jul 26 11:26:59 CEST 2013 x86_64 GNU/Linux
$ lsusb
Bus 009 Device 006: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
$ dmesg
[ 1788.621747] usb 9-4: new full-speed USB device number 8 using ohci_hcd
[ 1788.771370] usb 9-4: not running at top speed; connect to a high speed hub
[ 1788.785511] usb-storage 9-4:1.0: USB Mass Storage device detected
[ 1788.793170] scsi13 : usb-storage 9-4:1.0
[ 1789.801391] scsi 13:0:0:0: Direct-Access General USB Flash Disk 1.00 PQ: 0 ANSI: 2
[ 1789.814964] sd 13:0:0:0: [sdc] 15669248 512-byte logical blocks: (8.02 GB/7.47 GiB)
[ 1789.819230] sd 13:0:0:0: [sdc] Write Protect is off
[ 1789.819243] sd 13:0:0:0: [sdc] Mode Sense: 03 00 00 00
[ 1789.825267] sd 13:0:0:0: [sdc] No Caching mode page present
[ 1789.825281] sd 13:0:0:0: [sdc] Assuming drive cache: write through
$ lsmod | grep ohci
ohci_hcd 26544 0
usbcore 176991 6 ath3k,btusb,usb_storage,ohci_hcd,usbhid,xhci_hcd
$ sudo fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes, 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x89675d3a
Device Boot Start End Blocks Id System
/dev/sda1 2048 50333695 25165824 83 Linux
/dev/sda2 50333696 234441647 92053976 83 Linux
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0004e72c
Device Boot Start End Blocks Id System
/dev/sdb1 2048 3907022847 1953510400 83 Linux
Disk /dev/sdc: 8022 MB, 8022654976 bytes, 15669248 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0009ae2c
Device Boot Start End Blocks Id System
/dev/sdc1 2048 15669247 7833600 c W95 FAT32 (LBA)
I can't reformat the device at the moment (lack of computers here). The usb port on the pc is working (tested with another fat32 formatted usb stick).
Any ideas? Hints? Tips?
Last edited by D4ve (2013-08-18 18:48:35)

It works on 3.9.11.
dmesg on 3.9.11:
[ 74.391651] usb 3-4: new high-speed USB device number 3 using xhci_hcd
[ 74.410514] usb 3-4: New USB device found, idVendor=0951, idProduct=1607
[ 74.410529] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 74.410532] usb 3-4: Product: DataTraveler 2.0
[ 74.410534] usb 3-4: Manufacturer: Kingston
[ 74.410536] usb 3-4: SerialNumber: 00137299803FA931262A00CD
[ 74.465400] Initializing USB Mass Storage driver...
[ 74.465654] scsi7 : usb-storage 3-4:1.0
[ 74.465726] usbcore: registered new interface driver usb-storage
[ 74.465728] USB Mass Storage support registered.
[ 75.465448] scsi 7:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
[ 75.465839] sd 7:0:0:0: Attached scsi generic sg4 type 0
[ 75.466277] sd 7:0:0:0: [sdd] 3973120 512-byte logical blocks: (2.03 GB/1.89 GiB)
[ 75.466620] sd 7:0:0:0: [sdd] Write Protect is off
[ 75.466625] sd 7:0:0:0: [sdd] Mode Sense: 23 00 00 00
[ 75.466955] sd 7:0:0:0: [sdd] No Caching mode page present
[ 75.466960] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[ 75.469081] sd 7:0:0:0: [sdd] No Caching mode page present
[ 75.469087] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[ 75.681901] sdd: sdd1 sdd2
[ 75.683219] sd 7:0:0:0: [sdd] No Caching mode page present
[ 75.683224] sd 7:0:0:0: [sdd] Assuming drive cache: write through
[ 75.683227] sd 7:0:0:0: [sdd] Attached SCSI removable disk
dmesg on 3.10.5:
[ 1370.659092] usb 3-4: new high-speed USB device number 8 using xhci_hcd
[ 1370.677899] usb 3-4: New USB device found, idVendor=0951, idProduct=1607
[ 1370.677906] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1370.677910] usb 3-4: Product: DataTraveler 2.0
[ 1370.677913] usb 3-4: Manufacturer: Kingston
[ 1370.677916] usb 3-4: SerialNumber: 00137299803FA931262A00CD
[ 1370.678442] usb-storage 3-4:1.0: USB Mass Storage device detected
[ 1370.678711] scsi12 : usb-storage 3-4:1.0
[ 1371.674797] scsi 12:0:0:0: Direct-Access Kingston DataTraveler 2.0 1.00 PQ: 0 ANSI: 2
[ 1371.675283] sd 12:0:0:0: Attached scsi generic sg4 type 0
[ 1371.675809] sd 12:0:0:0: [sdd] 3973120 512-byte logical blocks: (2.03 GB/1.89 GiB)
[ 1371.676184] sd 12:0:0:0: [sdd] Write Protect is off
[ 1371.676192] sd 12:0:0:0: [sdd] Mode Sense: 23 00 00 00
[ 1371.676560] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1371.676567] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1402.372357] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1402.389648] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1402.389655] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1433.410334] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1433.427691] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1433.427698] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1464.352379] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1464.369587] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1464.369592] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1495.294439] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1495.311616] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1495.311623] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1495.314661] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1495.314677] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1526.236340] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1526.253657] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1526.253665] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1557.306368] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1557.323619] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1557.323627] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1588.248358] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1588.265745] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1588.265752] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1619.190405] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1619.207780] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1619.207788] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1619.421206] sdd: sdd1 sdd2
[ 1619.422735] sd 12:0:0:0: [sdd] No Caching mode page present
[ 1619.422741] sd 12:0:0:0: [sdd] Assuming drive cache: write through
[ 1650.132306] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1650.149607] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1650.149614] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1681.202196] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1681.219363] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1681.219370] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1712.144197] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1712.161474] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1712.161482] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1743.086261] usb 3-4: reset high-speed USB device number 8 using xhci_hcd
[ 1743.103565] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ecdc0
[ 1743.103572] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024d4ece00
[ 1743.104256] sd 12:0:0:0: [sdd] Attached SCSI removable disk
EDIT: Doesn't work on 3.11-rc4 either.
Last edited by gmesalazar (2013-08-06 01:30:00)

Cant mount external USB Device?

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