Flash Card wont mount

Im using 10.4.6 on a G5 with 4gb ram and I have been using a lexarmedia CF reader for a year and last week it worked fine but recently it wont mout any old or brand new CF cards that I use with different digital cameras. The same cards with the same reader work fine with other macs(10.4.7) and powerbooks (10.3.9). The card will not show up on disk utilites as well diskwarrior wont find it also. I have tried verify/repair permissions. I have also tried different USB ports and no luck and with those same USB ports everything from an IPOD to an external USB hard drive will mount. I even tried reformating the CF card
Please Help
Thanks

Exactly the same - if that reassures you.
Nikon d300
Macbook Pro early 2011 2.3GHz i7
Yosemite
CF card not recognised in card reader - not seen by Nikon Transfer 2, Lightroom or iPhoto
D300 not recognised by Nikon Transfer 2, lightroom or iPhoto
Disk Utilities show that the CF card and the camera is connected
But, I can't access any of my images on the CF card. And that's a bit of a problem.
(I have all the WiFi issues as well)
Isn't this a great OS release.
I'm getting used to 'Googling' remedies for the Yosemite experience.
Have you found a solution yet ?

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Im using 10.3.9 on a G5 with 4gb ram and I have been using a lexarmedia CF reader for a year and last week it worked fine but recently it wont mout any old or brand new CF cards that I use with different digital cameras. The same cards with the same reader work fine with other macs(10.4) and powerbooks (10.3.9). The card will not show up on disk utilites as well diskwarrior wont find it also. I have tried verify/repair permissions. I have also tried different USB ports and no luck and with those same USB ports everything from an IPOD to an external USB hard drive will mount.
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Thanks

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New Discussions ResponsesThe new system for discussions asks that after you mark your question as Answered, you take the time to mark any posts that have aided you with the tag and the post that provided your answer with the tag. This not only gives points to the posters, but points anyone searching for answers to similar problems to the proper posts.
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Procedure to Mount ejected Memory Flash Cards without reinserting or rebooting

The following Terminal command works to Mount ejected USB flash drives without reinserting or rebooting:
sudo kextunload /System/Library/Extensions/IOUSBMassStorageClass.kext ; sudo kextload /System/Library/Extensions/IOUSBMassStorageClass.kext
Source: http://ask.metafilter.com/241301/Mac-Mount-ejected-flash-drive-without-reinserti ng
yet, it does NOT work for Memory Flash Cards like the SanDisk Extreme 128 GB SDXC Class 10 UHS-1 Flash Memory Card 45MB/s SDSDX-128G-X46
http://www.amazon.com/SanDisk-Extreme-Class-Memory-SDSDX-128G-X46/dp/B00720TE1M
How to accomplish that with such Memory Flash Cards in Mac with OS X 10.8.4 (Mountain Lion)?
Is there a procedure that could work with both USB flash drives and also Memory Flash Cards at once?
Thanks.

OK, I have found this:
re-mount ejected SD card without reinserting
http://apple.stackexchange.com/questions/62478/re-mount-ejected-sd-card-without- reinserting
with the following Terminal command:
sudo kextunload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCa rdReader.kext; sudo kextload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCa rdReader.kext
which I belive is wrong, because it generates an error:
(kernel) Kext com.apple.driver.AppleUSBCardReader not found for unload request.
Failed to unload com.apple.driver.AppleUSBCardReader - (libkern/kext) not found.
I think that the right command is this (added space before semicolon):
sudo kextunload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCa rdReader.kext ; sudo kextload /System/Library/Extensions/AppleStorageDrivers.kext/Contents/PlugIns/AppleUSBCa rdReader.kext
But unfortunately, it does nothing. The Memory Flash Card is NOT mounted.
Any idea?
Thanks.

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Recently my camera CF cards stopped mounting on my Mac Pro (my 2009 one and now my new 2013 one) and my MacBook Pro. The cards still work fine in camera. I have tried two readers, different USB slots and reading directly from the camera. Any advice that might get me back up and running? All previously worked fine for several years. camera is a canon 5D Mk III. I have had some spontaneous working recently but no joy now.
Thank you : )

Chuck:
You've tried it on two running Tiger. Have you tried it on any other machines or can you? It might be that it gave up the ghost, slim but might be the case. You have tried it in all of the various USB ports on those machines, right?
I had the same problem with a Firewire card reader. Won't mount on my G5 or my wife's G4. I plan on taking it to the local Apple retailer and seeing if it will work on any of their machines. If so then I've got port problems on my macs. I think my reader got zapped.
You could take it with a card of some photos into a local dealer and give it a try on several display models.

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Here’s the problem.
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There is nothing wrong with the card; it works just fine in our Windows machine and in my camera.
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Write status: Read/write
The sub entry which appears as disk1s1 on the LHS is:
Mount point: Not mounted
Format MS-DOS (FAT16)
I attempted to erase the Card using Disk Utility; I selected the main entry on the LHS and I chose the format MS-DOS (FAT). This returned a Disk Erase Failed msg “Wiping volume data to prevent future accidental probing failed.”
I then tried again, this time selecting Windows NT File system (Tuxera NTFS) as I have Tuxera installed. This did not work either; it failed with the same error msg.
OK so then I tried Mac OS Extended (Journaled) but this failed as above also.
I am not quite sure why, but when I reinserted my card into my camera, my camera could not read the card so I had to reformat the card within the camera.
Oh yes, I also tried rebooting my Macbook with the card inserted but this made no difference.
I have run our of ideas. All help gratefully received.
Thank you. Carol
PS ... apologies to anyone who saw my previous post in which I referred to my card as an SD card when in fact it is a Compact Flash card
MacBook Pro, OS X Mavericks (10.9)
I have this question too (0

Okay, I am making progress here now.
Using the link in my message above timestamped Dec 13, 2013 4:24 AM, I filed a tech support request describing the problem. Because they asked for details to confirm that the problem was with their product, I copied and pasted pretty much verbatim the text from my message above.
Around noon, same day, I got a message back from technical support saying they were sorry for the problem and would provide me with a replacement unit. Two hours later, I got a message from their RMA department saying that because the product has a two year warranty, they needed a copy of my receipt. I located a copy of my receipt for the purchase from Amazon on September 10, 2012 and forwarded that to them.
At this point, I am optimistic that it's going to work out okay. So far, I am very impressed with the responsiveness of Kingston's technical support and customer service departments.
If I actually do receive a working replacement, I will post an update here.

Compact Flash Cards Won't Eject

I'm using Lexar UDMA and non-UDMA compact flash cards. I have the combination Lexar CF/SD pop-up USB card reader. It works on my MacPro. On the new unibody Macbook I bought last fall, there is a consistent problem mounting and ejecting cards of either type. When the cards mount, trying to eject them invariably brings up error messages... The first one says, "Can't eject, some app is using the card", if I do nothing often I get another message that says "Device removed improperly...". Then the card appears to eject, but then won't remount. Just a mess. Was in Africa for three weeks shooting and the only reliable way to download images was USB straight from camera to laptop.
Anyone else experiencing this sort of issue?

I'm not having the same issue, bought thought I may be able to help troubleshoot. Are the Mac Pro and MacBook running the same OS level? (i.e. 10.5.6 like your MacBook is)
Also, are you using the pop-up USB reader on both the Mac Pro and the MacBook?
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Script to move .MOV videos off Canon EOS_Digital CF card on mount?

I use Adobe Lightroom as an integral part of my digital photography workflow, and I recently acquired a Canon EOS 5D Mark-II digital camera, which is capable of capturing 1920x1080 HD video.
The problem I am having is that Lightroom does not provide support for importing video, so every time I insert my compact flash card containing images and video captured using the 5D MKII, I am notified of videos on the card that cannot be transferred into my Lightroom database...I then have to click OK to dismiss this notification message, then I have to manually browse the card to find the movies and copy them to my computer manually...
While this might not seem like that big of an issue, I've become accustomed to this process being a completely automated, so to go back to having to perform a number of steps manually seems a bit too much like backtracking to me, so I was hoping that someone here might be able to help me automate this process via AppleScript...
*• Ideally, a script that could be executed on my "EOS_Digital" volume (my CF card's name, which will always remain the same), and will scour the contents of that volume for .MOV files, and upon finding such files, it would copy them all to my ~/Movies/ directory before then removing (deleting) them from the card completely...*
*• The CF card will also contain .THM files that correspond to the .MOV files to provide thumbnails of the .MOV files for Windows users...I would ideally like to have these moved along with the .MOV files to the ~/Movies/ directory (or trashed completely), because Lightroom give me a notification warning that they cannot be imported into the image database*
*• I would trigger the script via QuickSilver (or FastScripts, QuicKeys, etc), which I could do manually after inserting my CF card...*
I know it's a long shot that someone would be willing to help me out with this task, but any help at all would be greatly appreciated!!
Thanks so much, and I look forward to your responses!

Hello
If you are going to call the script manually when the target volume is mounted, try something like SCRIPT1.
--SCRIPT1
main()
on main()
set srcPath to "EOS_Digital:" -- # HFS path of source directory
set dstPath to (path to movies folder from user domain as Unicode text) -- # HFS path of destination directory
try
set src to quoted form of ((POSIX path of (srcPath as alias))'s text 1 thru -2)
set dst to quoted form of (POSIX path of (dstPath as alias))
on error errs number errn
display dialog errs & " " & errn with icon 2
error number -128
end try
set sh to "find " & src & " -type f \\(-iname '*.mov' -or -iname '*.thm' \\) -print0 | xargs -0 -J % mv % " & dst
do shell script sh
end main
--END OF SCRIPT1
If you want the script to be called automatically when the target volume gets mounted, try something like SCRIPT2.
You need to set up it as a Folder Action attached to /Volumes directory.
--SCRIPT2
Usage -
(1) Save this script as compiled script or script bundle in either of -
/Library/Scripts/Folder Action Scripts/
~/Library/Scripts/Folder Action Scripts/
(2) Using /Application/AppleScript/Folder Actions Setup,
enable Folder Actions for /Volumes directory and attach this script (saved in (1)) to it.
cf.
ASLG > Folder Actions Reference
http://developer.apple.com/documentation/applescript/Conceptual/AppleScriptLangG uide/
on adding folder items to da after receiving aa
set srcPath to "EOS_Digital:" -- # HFS path of source directory
set dstPath to (path to movies folder from user domain as Unicode text) -- # HFS path of destination directory
repeat with a in aa
set a to a's contents
if (a as Unicode text) = srcPath then
set src to quoted form of ((POSIX path of a)'s text 1 thru -2)
set dst to quoted form of (POSIX path of (dstPath as alias))
set sh to "find " & src & " -type f \\(-iname '*.mov' -or -iname '*.thm' \\) -print0 | xargs -0 -J % mv % " & dst
do shell script sh
end if
end repeat
end adding folder items to
--END OF SCRIPT2
Hope this may help,
H
PS. Please copy code from this web page, not from subscribed email text, for I escaped some characters for posting.
Message was edited by: Hiroto (fixed the link)

Can't use 4GB flash card with 10.3.X

hi, i have 2 compact flash cards, both 4GB that i cannot mount on my 10.3.x machines but they work fine on my 10.4.x machines.
is there anyway to get the cards to mount in 10.3.x? i get an error saying the disk is unrecognizable.
thanks for the help

Have you tried to erase & reformat using Disk Utility?
 Cheers, Tom

How do I make a flash card look like a normal disk to an application?

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I have already tried making /Volumes visible, and locating the file system through that path from the application. It still assumed the filesystem was on a flash card, and not on a hard disk.
Any ideas?
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How is the flashcard file system formatted?
Is it:
FAT?
FAT32?
exFAT?
HFS+ Journaled (aka Mac OS Extended Journaled)?
Applications -> Utilities -> Disk Utility can tell you how the file system on the Flashcard is formatted.
Can you explain how the application treats the flashcard differently? That might give us a clue.
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Hi,
a solution can be disabling the flash card service if you dont need your flash drive.
You can disable it just by following these steps:
- Go into Start -> settings -> Control Panel -> Administrative Tools -> Services
- Make a right click on "Smart Card" and left-click on "Properties"
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(I hope so :O )
Greets

How to programmatically eject a removable disk (such as a flash card)

I need to be sure that after copying files to a flash card, the card buffer is actually shuffled to allow for safe removal of the flash card (the usual 'eject' option in Windows Explorer). I understand that there is a DeviceIoControl command. Is there anyone who already developed and tested such code?

SUMMARY
Win32 applications that run on Windows NT can programmatically eject media from drives that have hardware support for media removal. However, they must do so correctly to avoid corrupting the media. This article explains how to eject media correctly on Windows NT.
MORE INFORMATION
Windows NT version 4.0 and later support ejecting media formatted with NTFS and FAT file systems without shutting down the machine. Windows NT 3.51 and earlier support the ejecting FAT formatted media without shutting down. However, Windows NT versions 3.51 and earlier do not support removing media formatted with NTFS while the system is running. On these versions 3.51 and earlier the system must be shut down in order to avoid corrupting data on the media.
When a volume is mounted on Windows NT, there are two categories of read and write operations: 1) data operations performed by applications, and 2) file-system structure related operations performed by Windows NT. The second category is used by Windows NT to maintain the file system itself, such as directory entries of files (for example, file times, sizes, names, etc.).
Win32 applications can use either cached or uncached access to files. Windows NT, on the other hand, caches some write operations to file-system data structures to implement a "lazy-writer" scheme. This allows Windows NT to defer some writes to disk until they are absolutely required. This way, only the latest changes need to be written to disk if the file system data is updated often.
Because Windows NT uses a lazy writer system to update file system data structures on media, the media will be corrupted if the media is ejected while the system is updating this information. To avoid this problem, Win32 applications must take the following steps to correctly eject removable media and prevent possible data corruption:
Call CreateFile with GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, and OPEN_EXISTING. The lpFileName parameter should be \\.\X: (where X is the real drive letter). All other parameters can be zero.
Lock the volume by issuing the FSCTL_LOCK_VOLUME IOCTL via DeviceIoControl. If any other application or the system is using the volume, this IOCTL fails. Once this function returns successfully, the application is guaranteed that the volume is not used by anything else in the system.
Dismount the volume by issuing the FSCTL_DISMOUNT_VOLUME IOCTL. This causes the file system to remove all knowledge of the volume and to discard any internal information that it keeps regarding the volume.
Make sure the media can be removed by issuing the IOCTL_STORAGE_MEDIA_REMOVAL IOCTL. Set the PreventMediaRemoval member of the PREVENT_MEDIA_REMOVAL structure to FALSE before calling this IOCTL. This stops the device from preventing the removal of the media.
Eject the media with the IOCTL_STORAGE_EJECT_MEDIA IOCTL. If the device doesn't allow automatic ejection, then IOCTL_STORAGE_EJECT_MEDIA can be skipped and the user can be instructed to remove the media.
Close the volume handle obtained in the first step or issue the FSCTL_UNLOCK_VOLUME IOCTL. This allows the drive to be used by other processes.
The following code demonstrates how to accomplish safe ejection using the steps described above:
#include
#include
#include
#include
// Prototypes
BOOL EjectVolume(TCHAR cDriveLetter);
HANDLE OpenVolume(TCHAR cDriveLetter);
BOOL LockVolume(HANDLE hVolume);
BOOL DismountVolume(HANDLE hVolume);
BOOL PreventRemovalOfVolume(HANDLE hVolume, BOOL fPrevent);
BOOL AutoEjectVolume(HANDLE hVolume);
BOOL CloseVolume(HANDLE hVolume);
LPTSTR szVolumeFormat = TEXT("\\\\.\\%c:");
LPTSTR szRootFormat = TEXT("%c:\\");
LPTSTR szErrorFormat = TEXT("Error %d: %s\n");
void ReportError(LPTSTR szMsg)
_tprintf(szErrorFormat, GetLastError(), szMsg);
HANDLE OpenVolume(TCHAR cDriveLetter)
HANDLE hVolume;
UINT uDriveType;
TCHAR szVolumeName[8];
TCHAR szRootName[5];
DWORD dwAccessFlags;
wsprintf(szRootName, szRootFormat, cDriveLetter);
uDriveType = GetDriveType(szRootName);
switch(uDriveType) {
case DRIVE_REMOVABLE:
dwAccessFlags = GENERIC_READ | GENERIC_WRITE;
break;
case DRIVE_CDROM:
dwAccessFlags = GENERIC_READ;
break;
default:
_tprintf(TEXT("Cannot eject. Drive type is incorrect.\n"));
return INVALID_HANDLE_VALUE;
wsprintf(szVolumeName, szVolumeFormat, cDriveLetter);
hVolume = CreateFile( szVolumeName,
dwAccessFlags,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL );
if (hVolume == INVALID_HANDLE_VALUE)
ReportError(TEXT("CreateFile"));
return hVolume;
BOOL CloseVolume(HANDLE hVolume)
return CloseHandle(hVolume);
#define LOCK_TIMEOUT 10000 // 10 Seconds
#define LOCK_RETRIES 20
BOOL LockVolume(HANDLE hVolume)
DWORD dwBytesReturned;
DWORD dwSleepAmount;
int nTryCount;
dwSleepAmount = LOCK_TIMEOUT / LOCK_RETRIES;
// Do this in a loop until a timeout period has expired
for (nTryCount = 0; nTryCount < LOCK_RETRIES; nTryCount++) {
if (DeviceIoControl(hVolume,
FSCTL_LOCK_VOLUME,
NULL, 0,
NULL, 0,
&dwBytesReturned,
NULL))
return TRUE;
Sleep(dwSleepAmount);
return FALSE;
BOOL DismountVolume(HANDLE hVolume)
DWORD dwBytesReturned;
return DeviceIoControl( hVolume,
FSCTL_DISMOUNT_VOLUME,
NULL, 0,
NULL, 0,
&dwBytesReturned,
NULL);
BOOL PreventRemovalOfVolume(HANDLE hVolume, BOOL fPreventRemoval)
DWORD dwBytesReturned;
PREVENT_MEDIA_REMOVAL PMRBuffer;
PMRBuffer.PreventMediaRemoval = fPreventRemoval;
return DeviceIoControl( hVolume,
IOCTL_STORAGE_MEDIA_REMOVAL,
&PMRBuffer, sizeof(PREVENT_MEDIA_REMOVAL),
NULL, 0,
&dwBytesReturned,
NULL);
AutoEjectVolume(HANDLE hVolume)
DWORD dwBytesReturned;
return DeviceIoControl( hVolume,
IOCTL_STORAGE_EJECT_MEDIA,
NULL, 0,
NULL, 0,
&dwBytesReturned,
NULL);
BOOL EjectVolume(TCHAR cDriveLetter)
HANDLE hVolume;
BOOL fRemoveSafely = FALSE;
BOOL fAutoEject = FALSE;
// Open the volume.
hVolume = OpenVolume(cDriveLetter);
if (hVolume == INVALID_HANDLE_VALUE)
return FALSE;
// Lock and dismount the volume.
if (LockVolume(hVolume) && DismountVolume(hVolume)) {
fRemoveSafely = TRUE;
// Set prevent removal to false and eject the volume.
if (PreventRemovalOfVolume(hVolume, FALSE) &&
AutoEjectVolume(hVolume))
fAutoEject = TRUE;
// Close the volume so other processes can use the drive.
if (!CloseVolume(hVolume))
return FALSE;
if (fAutoEject)
printf("Media in Drive %c has been ejected safely.\n",
cDriveLetter);
else {
if (fRemoveSafely)
printf("Media in Drive %c can be safely removed.\n",
cDriveLetter);
return TRUE;
void Usage()
printf("Usage: Eject \n\n");
return ;
void main(int argc, char * argv[])
if (argc != 2) {
Usage();
return ;
if (!EjectVolume(argv[1][0]))
printf("Failure ejecting drive %c.\n", argv[1][0]);
return ;
REFERENCES
For more information on the IOCTLs and functions discussed in this article, please see the Win32 SDK Documentation.
For information about how to eject media on Windows 95, please use the following keywords to search the Microsoft Knowledge Base:
eject removable media

Flash Card wont mount

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