Flash Drive not mounting, shows up in sys. prof. and USB Prober

I have a 4Gig Flash Drive that doesn't mount. It shows up in both SYstem Profiler and USB Prober. Is there any way to "fix" it? I don't need to recover any files - I just want to be able to use it.
It used to work, maybe a year ago. Havn't touched it since.
The port is just fine, it's definitely the drive.
Thanks for your time!

it doesn't show up in disk utility. unless there is a way to force mount it, disk utility can't help.

Similar Messages

Flash Drive Not Mounting

I just got a Swiss Memory swissbit flash drive that I attempted to completely erase and format in Disk Utility. I formatted as Mac OS X Standard and now my drive does not mount when I plug it in. The light on my flash drive blinks but I get no icon on the desktop or within the finder window. Disk Utility does not recognize it either for me to reformat and try again. Any suggestions?

I believe that could have happened. The drive
disappeared from the desktop after I selected "Erase"
in Disk Utility so I just removed it from the USB
port, as there was no way to eject it. Rebooting
gets me no where. However, the drive does show up
under USB in System Profiler as "Flash Disk".
Disk Utility will dismount a drive before it begins to format it. ( If it is mounted on the desktop, it is considered "in use" )
Once the format is complete, DU remounts the drive.
Of course, when dismounted, it will disappear. If you removed the device as soon as it went away, then the format process never completed, which would explain why it doesn't show up now.
Might want to check w/ the manufacturer to see if they have a reformatter utility for the drive.

USB Flash Drive not mounting

I recently bought an 8GB USB flash drive, which came formatted FAT-32. The drive was put into a friend's Windoze laptop and had a couple GBs of jpeg and avi files transferred to it. I took the drive home and put it in my white MacBook (4GB RAM, Leopard 10.5.8) and it would not mount. I put it in my G4 MacMini; likewise, it wouldn't mount. I am assuming it also won't mount in all my older Macs with USB, either. I returned it to the Windoze laptop, and it ALSO wouldn't mount this time, except as one pulled the flash drive from the Windoze laptop, for a second a window with the flash drive's contents would flash on the desktop of the laptop. Originally, the flash drive was "properly" ejected from the Windoze laptop.
On the MacBook, both Disk Utility and DiskWarrior do not see the flash drive when it is in the USB port (either port). However, Apple System Profiler does recognize when it is plugged into the port. ASP returns the following information when the flash drive is in the high speed USB port:
"Flash Disk:
Product ID: 0x3234
Vendor ID: 0x1221
Version: 0.00
Serial Number: 10000000000003CF
Speed: Up to 480 Mb/sec
Manufacturer: USB2.0
Location ID: 0x24100000
Current Available (mA): 500
Current Required (mA): 100"
Anybody have any idea what is the cause of my problems with the flash Drive and how I can get the drive to mount? I don't think the problem is a function of my Apple hardware, as my USB ports on all my machines function with everything else USB which I have without problems. Thanks.

I know that, but I have USB in my older Macs, too, and besides, some of the most knowledgeable people are in these older forums!!
I've come to the conclusion that the drive may be defective, too, but I was just looking for some possible angle which I'd not already considered. I tried reformatting, but without the drive even being recognized, it isn't even possible to reformat. I can only get ASP to indicate that it is attached.
Thanks for your try!

Usb flash drive not mounting when inserted (SOLVED)

Hi,
I am (now) using fvwm-crystal with rox as my file manager and when i insert a usb flash drive in to a usb port nothing happens. I check /media and nothing is there. Yes i do have hal started at boot.
I reinstalled arch with xfce4.
Last edited by theringmaster (2007-10-09 20:28:42)

Well, there are the on-line manual pages:
man ivman
man IvmConfigActions.xml
man IvmConfigBase.xml
man IvmConfigConditions.xml
man IvmConfigProperties.xml
And there are examples in the default files (/etc/ivman/) provided with Ivman.
But that you probably already know. I'm not familiar with any other docs, except maybe tutorials on the net if you count them as docs

4GB Flash Drive not loading on Mac (but on Windows and Ubuntu)

Hello,
I have a 4GB flash drive (probably from LG) that I bought about 3 years ago. It was working just fine all this time but now, all of a sudden, it's gone. Not working, showing up neither in Finder nor in Disk Utility. But it works just fine on Windows 7 and Ubuntu. Files are even readable there. I tried re-formatting it on Ubuntu in FAT-32 but it still won't show up on a Mac.
Any other flash drive is showing up on my computer (tested with 2 different ones).
Any clue?

I don't claim to know the solution to your problem, but in your situation I would try either or both administrator install methods: 1) Right-click the downloaded install file, choose "Run as Administrator" and install the software as usual. 2) Try using a different Windows account that you are positively certain has full administrator rights or the actual Administrator login name, install with that account.
Also, make sure you empty the browser cache before retrying the http pages. What about other browser settings, like security or privacy settings? Any add-ons or antivirus browser helper objects?
Do you only use Internet Explorer, or is this issue the same in Firefox, Opera, Chrome and Safari?
Good luck, hope you get the error fixed.

Hard drive will not mount shows up in Disk Utility

I have an external drive with a bootable OS X 10.6.8. I was in a transition between building up a SSD swapped drive. The SSD is installed in the CPU box but I have my old installation running from an external.
I have several external hard drives. They are all Firewire. Some have USB 3.0 and or eSATA options but my MacMini only talks to Firewire and USB 2.0.
I understand that you daisy chain Firewire drives and turn them on and off in sequence as they fall from the CPU box/case.
Firewire is a power source. I run the external with the OS using an AC adapter but one Firewire drive is powered through Firewire.
I have had as many as 4 external drives running along with the internal drive without a glitch while I was reorganizing files.
Today I booted off the external drive. It was running fine. I turned on one Firewire drive (the one that runs on Firewire power). That drive stumbled. I recognized the sound when there is an interruption in power. This cause the external boot drive to stall. I had to force a reboot.
Now the external boot drive will not boot up. It does not mount but Disk Utility sees it. The drive itself is bright and clear in Disk Utility but the partition (single) is faded out. I can run Verify and repair in DU. DU says it doesn't see anything to repair. It will not mount on its own or when I click the Mount button in DU. It does not produce an icon on the Desktop (because it is not mounting).
I also have SpeedTools. But although it sees the drive I cannot do anything with it. None of its tools run more than a spli second before they fail.
This drive has USB 3.0 and I see everything through USB that I see through Firewire. Connecting the other way did not get around the problem.
Of course I will buy an AC adapter for every external drive and never run them using Firewire again but the horse is out of the barn.
I have the original installation disks and could run the Archive and Install option but it would require physically swapping drives with the internal. I'd like to avoid it if possible. It is a MacMini and tedious.
Any suggestions?

I took the problematic hard drive and installed it in my Mac Mini so I could attempt a Safe Boot and then Archive and Install if necessary.
Safe Mode didn't work. The drive produced the circle with a slash symbol.
I reset the PRAM which was part of a list of steps to work through I found created by Apple Support.
I was able to boot up to Verbose Mode and view the text of the boot process. I wrote it all down. I can answer questions about the content better than typing it all out exactly. It includes, "...journal magic is bad..." "...failed to open..." and ends with "...cannot mount root, errno = 19"
I attempted Archive and Install however when it went to show what target drives were available it was a blank box and all buttons were grayed out.
I rebooted and opened Disk Utility from the DVD. The drive appeared the same with the top main line bright and the partitioned volume faded. Still was unable to mount. I ran Verify and this time a red line of text appeared "Invalid content in Journal" and at the end I ran Repair. When running I could read line by line and at one point it showed "checking volume information" then the following line "Repairing volume" the following line "Rechecking volume" more line of checking then it ended with "The volume was repaired successfully."
It still would not mount. I ran Verify again and again said "Invalid content in Journal" and this time it stopped midway saying "The volume was found corrupt and needs to be repaired. Error: This disk needs to be repaired. Click Repair Disk."
I clicked Repair and it ended with The vol. was repaired successfully."
Still unable to mount I began repeating Repair over and over. Each time it found something to repair and ended with a success message. After several more Repairs I tried Verify and it stopped midway saying to Repair the disk.
Question: Does running Repair multiple times continue to correct bits and pieces little by little or is this a generic message and we should treat it as a problem Disk Utility cannot pinpoint and is just beating its head against the wall?
The step by step instructions I downloaded mentioned running Repair more than once but it did not say that running it 20 times would erode some problems and eventually lead to a fully repaired disk (if the problem was something DU could take care of in the first place). At this point I have run Repair about 20 times total with a series of 10 back to back skipping Verify. I keep seeing the lines about invalid content in a journal and that it repaired something successfully. Yet I still cannot mount the disk.

USB Flash drive not showing on DT

Hi folks,
I received a USB flash drive with 2 GB capacity made by Super Talent (www.supertalent.com- look under Aluminum flash drives).
Upon plugging it into the G5's USB port (i've tried them all) I get a "Cannot recognize- Initialize/Ignore/Eject" message. Clicking Initialize brings up Disk Utility which sees the drive with a capacity of..wait for it..2 Terabytes! Here's DU's info:
Name : SKYMEDI USB Drive Media
Type : Disk
Disk Identifier : disk1
Media Name : SKYMEDI USB Drive Media
Media Type : Generic
Connection Bus : USB
Connection Type : External
USB Serial Number : 03
Writable : Yes
Ejectable : Yes
Mac OS 9 Drivers Installed : No
Location : External
Total Capacity : 2.0 TB (2,199,023,255,552 Bytes)
S.M.A.R.T. Status : Not Supported
Disk Number : 1
Partition Number : 0
Selecting HFS+ (journaled or not) or MS-DOS then clicking Erase gives me a spinning beach ball requiring me to Force Quit DU.
My config: G5 DP 2.0, 1 GB ram, 10.4.6
Any thoughts?
G5B DP2.0 & iBook366SE Mac OS X (10.4.6) Alu 20-in Display

hey there scan,
I gave the drive to a friend who has an iMac. Samething occurs: drive does not mount, DU erroneously reports 2 TB capacity and coughs up the beachball seconds after clicking on Erase to format it. He's on 10.3.9 while I'm on 10.4.6.
All the ports on my G5 are in working order as i use printer/scanner and iPod w/o problem.
Think the drive is going back.
Frank

None of my usb flash drives are mounting

OS X 10.6.8 - None of my usb flash drives are mounting. They don't show up in disk utility either. System proflier does show the flash drives. I've run disk warrior and the flash drives show there as well. I've tried all of the usb outlets with several flash drives and none of them show up. I can use the same usb outlets to use my wireless keyboard, mouse and also my ipad.
Finders preferences are all checked to show items on desktop.
One of my flash drives I tried several times and finally got this screen message. "System extension cannot be used The system extension "/System/Library/Extension/IOStorageFamily.Kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update. Non of my other 6 flash drives mount and they do not receive any screen message.
I've also run repair disk permissions several times and the it says permissions repaired so I run it again and the same issued it said it was repaired, it lists again. I've done this several times with the same results.

Hello
from that
"System extension cannot be used The system extension "/System/Library/Extension/IOStorageFamily.Kext" was installed improperly and cannot be used"
try this
- boot from your original system disc
- plug one of your usb flash drives
- see if installer software could use usb flash drives as target for install
( testing your usb flash drive from a know good system software )
- DO not perform install on flash drive , just need to know if flash is usable
if it could , re-install your system or if it was updated from a previous version re-install 10.6.8 combo update
http://support.apple.com/kb/DL1399
checking for any missing update ?
HTH
Pierre

WiebeTech Super Desktop Drive not mounting in Tiger

Hello,
I have a wiebetech super desktop GB external firewire drive. Originally, I used it with OSX 10.2. That was a few years ago. It worked well then.
It worked much the same with 10.3, except that when we tried to mount it, nothing worked, except it you plugged the firewire cable into the back of the iMac at just the right time: when the drive made a 'ba ba' noise.
And now with 10.4 tiger, nothing seems to make it work. Here is wiebetech's advice (note: I inserted a little note next to the steps I've tried):
2004-11-09
Mac OS Updates
A new OS update was released and you installed it. As with nearly every OS update
Apple does, some external drives are not recognized after the update. The incidence
is fairly uncommon and the most common symptom is that the device will not mount
but the volume is visible and greyed out in Disk Utility. This means that the
device is working properly, but the OS does not recognize the volume as mountable.
Sometimes the drive does not show up at all. Now this happens to every drive
manufacturer but not to every drive. There is no discernable way to prepare for
this and no one thinks about it unless it happens to them. So now what?
The first thing to do is to see if repairing Disk Permissions with Apples Disk
Utility First Aid feature solves the problem [tried this]. If not, try Repairing the disk
with First Aid. Another possible solution is to ZAP the PRAM [tried this too]. For the older Mac
users, this is the same from the days when we manually rebuilt the Desktop and
is done with a keyboard command while rebooting. Restart your computer and hold
down the Command, Option, P and R keys. Consult the Apple web site for details.
If this does not work, then try pushing the PMMU reset button on the logic board [say what?].
Consult the Apple web site for locations of the button for your Mac. If the drive
still does not show up, shutdown, disconnect all peripheral devices and boot
from the Mac OS Installation CD. The later the OS version, the better. Do not
reinstall the OS, but when the Installer is loaded up and ready to begin, go
to the File menu and use the Disk Utility program. Connect the drive that is
having problems, then start the Disk Utility application. If you see the external
drive and it is not grayed out, you know the drive is okay. But run Disk First
Aid on it anyway. Then run it on your internal boot drive while you are at it.
When done, unmount the external drive and UNPLUG it! Then restart the Mac.
When the Mac has restarted and is running on the internal boot drive, reconnect
the external drive.
As you can see, I'm having some trouble here. Anyone have any suggestions?
Thanks,
ben

Forget this enclosure:
Vantec Nexstar LX 3.5 Network Attached Storage NAS Enclosure
Do not bother to buy it. Waste of money and time. When I looked at it I thought that someone is copying someone elses ideas because even electonics seem to be the same as in NewerTech units. Anyway it has more problems and defective pieces are common on the market. It is also noisy as it runs fun. Why they cannot figure out that plastic enclosures will always have cooling problem while one decent piece of thic aliuminium like in MadDog, LaCie or even some cheaper enclosure may be better and not always require noisy fan. I run MadDog enclosure now with up 500GB drives in them 24x7 no fans (do not stack them and leave gaps between them if you want to do this!). Also some could figure out that radiators have their shape for reason and the idea can be implemted to some degree in enclosures too.
Message was edited by: Maciej Samsel

10.4.7 & FireWire drives not mounting

Hi everyone,
since this morning my trusted LaCie FW HDs won't mount, are not seen in System Profiler and Disk Utility.
I tried almost every thing I could find, resetting vram, pram, powering everything down, waiting, disconnecting all the cables, powering back up, connecting one after another, etc. - no changes.
Every application runs fine. Except, of course, Logic because I have all my sounds and song projects on these drives.
My system.log continues to say every second again:
...-Computer kernel[0]: AppleFWOHCI_AsyncTransmit::waitForDMA - context not going inactive.
The console.log repeats:
-Computer root[175]: [MAFL] attempt to make FSSpec for "121-210.cypress" failed -120\n
-Computer root[175]: [MAFL] attempt to make FSSpec for "210.cypress" failed -120\n
-Computer root[175]: [MAFL] found no firmware to load for 210\n
Does anybody know what these logs mean?
Is anybody else having this problem with 10.4.7?
I started a similar thread on A-S-D- Installation and Setup, only to find out, that a lot of people there are experiencing the same issue (FW drives not mounting, not showing).
Would resetting the PMU help?
Please help, I can't work

Back from the mysterious world of HDs, so easy to solve..., sometimes...
I tried the HDs on my friends older PB and all was fine.
Resetting my computers PMU did not solve the problem, after I tried everything else.
I refrained from reinstalling 10.4.7.
All other applications (but Logic, because I could not access my files) were running smooth.
Going back to 10 a.m. yesterday, basically starting over, there was one thing I missed checking (being human): the AC to DC converters supplied by LaCie for their drives.
See, they are under my desk, like out of sight...
Voilá! Individual testing revealed, that the AC/DC converter for the first LaCie drive in my chain did not spin up any of my other six LaCie drives, which I never run all at the same time, but they still have their own power supply.
Changed power supply on the first HD and now I am back to the fast speed and glitch free system I love. Back to enjoying work as well
What a day. And I am very sorry, that I was implying to blame 10.4.7 for this. My PB has never been faster

Flash Drive not supported

Hello everyone,
I purchased a SanDisk Cruzer Micro 1.0 GB flash drive not too long ago and it was working fine. Removed some software that was on it because I couldn't use it.
Used my flash drive today and I receive this error, but still kinda works...
"The disc could not be used because the disc drive is not supported. (Error code 0x80020025)"
The flash drive also does not eject the flash drive correctly. The little light that is on the flash drive does not turn off when I press the eject button in the OS hard drive icon.
I've tried reformating the flash drive and tried downloading the driver on the sandisk website, but it is for the Windows 98SE Operating System and does nothing for my iBook G4.
Any suggestion would be much appreciated.
Thanks,
Stephanie
iBook G4 Mac OS X (10.3.4)

Someone on another forum had a similar issue. Basically, you need to connect it to a Windows machine and uninstall the U3 software from it.
The error message you get indicates that the computer is trying to access the flash drive as if it was a CD writer.
(13744)

USB Flash Drive not readable using 10.4.6 but is with 10.3.9

I noticed that a 32MB USB Flash Drive that used to work on my Powerbook when it was running 10.3.9 became unreadable when I upgraded to 10.4.6. This flash drive still works on my Dell WinXP system and I just tried booting the powerbook off a clone of my 10.3.9 setup (on an external firewire drive) and my flash drive works on that. So it appears to me that 10.4 has introduced a software bug that has disabled support for some flash drives. I will note that I also use a USB compact flash reader for transfering digital pictures and that does work under 10.4.6 so the problem does not affect all USB flash devices.
Is Apple aware of this? Are they working on it?
PB 1.5 GHz G4 15 Mac OS X (10.4.5)

Have you tried to open it in disk utility? Probably won't, but worth a shot. If not and you don't know who made it, then I'd say your out of luck. Probably time for a new Flash drive.
A 32meg Flash Drive today is very cheap if you can find one. You can get a 250 meg Flash drive for $20-$30. That's 8 times the storage you have now.

10.6 to upgrade 10.8 my promise vess drive not mount again

when i upgrade 10.6 to 10.8 my promise vess drive not mount again.

If you are using Safari, try a different browser such as Mozilla Firefox Web Browser or Google Chrome

Usb optical drive not mounting

Usb Optical Drive not mounting via MacBook Pro (13inch 2013) since update to 10.10.1. Any positive solutions?

Hello MicroTuFF,
If you cannot get your USB SuperDrive to not mount disks, then take a look at the troubleshooting in the articles below. Start at the Doesn't accept discs section for your specific issue.
Get help with the slot-loading SuperDrive on your Mac computer
http://support.apple.com/en-us/HT201788
Regards,
-Norm G.

SOLUTION - USB 3.0 External Drives Not Mounting on MBP Retinas - SOLUTION

So I have been having the same problem as everyone else who has issues with USB 3 external hard drives not mounting on their MBP Retinas. My friend told me to try unplugging the USB cord and plugging it back in instantly (like in half a second, so as to not let the power turn off on the drive). I had my doubts but then I tried it just now, and MY DRIVE MOUNTED.
GO TRY IT AND SEE IF IT WORKS FOR YOU!
UPDATE: I am using a powered external drive (Seagate Backup Pro 3TB). Not sure if this will work with bus powered drives, but I think it might, as my friend might have been using a bus powered drive.
Also, I just bought two Hitachi TOURO 750GB bus powered portable drives (7200rpm/USB 3.0) and they mounted perfectly without problem as soon as I plugged it in for the first time.

Roderick A. Santiano wrote:
So I have been having the same problem as everyone else who has issues with USB 3 external hard drives not mounting on their MBP Retinas. My friend told me to try unplugging the USB cord and plugging it back in instantly (like in half a second, so as to not let the power turn off on the drive)...
Did you unplug the USB cable from the computer or from the external drive? This fix has been posted here previously but it was reported that the cable had to be unplugged from the device, not the computer. If the cable was unplugged from the computer instead, the fix didn't work.

Flash Drive not mounting, shows up in sys. prof. and USB Prober

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