SD Card read only [Solved]

Hi,
Do not think its an Arch related problem but I have an SD Card which will only mount read-only
mount: block device /dev/sdh2 is write-protected, mounting read-only
mount: wrong fs type, bad option, bad superblock on /dev/sdh2,
missing codepage or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
It states card is write-protected it not write locked, of course not being able to write to the card I cannot reformat it.
Just wondered if card was faulty? or can I repair the filesystem on it? [ext3]
Thanks
MrG
Last edited by Mr Green (2008-02-03 09:08:31)

Wow thanks for that seems to be able to read from device not sure if it will repair it..../me reads manual
managed to read data off device and use a loop to mount to a directory
only thing is I still have no access to device I really hope its not faulty ;-(
Last edited by Mr Green (2008-01-06 14:52:47)

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Dear JHeadstart,
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http://download-east.oracle.com/docs/html/B25947_01/bcvoeo009.htm#BABJEEFA
Section 7.9.3 got me on track.
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Message was edited by:
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<Email Edited By Host>

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izzmann56 wrote:
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Anyone else with card reader issues should read this page. Just because your card reader doesn't appear to be working or has mysteriously dropped off your system doesn't necessarily mean a logic board replacement. I've repaired several portables over the years that had been quoted for costly logic board replacements, when in fact the failures were relatively easy to resolve once you understood the real problem.
It's common belief a PRAM or SMC reset should fix all hardware glitches but sometimes it just doesn't go deep enough, as I found out with my 2011 MBP. Simply removing the battery was all it took to resurrect my seemingly dead card reader, when PRAM and SMC resets failed to have any impact on the problem.

New computer vs card reader/USB ***Solved***

I'm not too sure what forum I need to address this to. Not sure if it's an issue of bios, OS or hardware. It's very weird, wherever it belongs.
I just built a new computer (see specs below) and I have a HP Officejet 6300 with a front USB port combined with four different card reader ports. I don't use these ports and don't need them. When I installed this thing to my last computer a few months ago (an Aopen AX3S with PIII 933 MHx Coppermine) it wasn't a problem and didn't interfere with booting. After a few days, I uninstalled this pseudo drivecard reader because it interfered with my preferred drive assignment letters. I uninstalled it and it was gone. End of story.
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Quote from: DonDodge on 13-February-08, 22:03:03
I think I fixed it last night. Not sure exactly how it happened but I did another cmos clear with a CF card in the HP, left it unplugged for quite some time and disabled quick booting. After that, POST quit looking for the HP. Now it is doing as it should and not finding or even looking for a printer as a potential boot drive when starting up. It does appear in Windows exactly as it's supposed to and occupying one of my drive but I'm going to leave it alone now.
Changing legacy support had no effect on anything. I tried that last night. It returned to its default of Auto with reset of the cmos. That's where it is now.
Quote from: DonDodge on 13-February-08, 23:43:41
Hi Svet,
I ran the HP USB disk tool on my Corsair flash drive and installed the MSIHQ BIOS tool on it with the v. 1.5 update. It worked like a champ. I had to jump through some hoops again to make the bios quit looking for the HP card reader at the POST but got it done. Everything is currently working just as it should.
With the new bios, I have the option to change the multiplier. I'll probably wait a while before I start goofing with that but I just wanted to let you know that everything appears to be good with my new computer.
Thank you so much for all your help with this.
Best,
Don
Hi Don,
Nice You are done well
Thanks for your feedback as well :smiley:

SD Card Reader only works on restart

I have a 21.5in Mid 2010 iMac running OSX 10.8.4 (Mountain Lion). If I start it with an SC card in the slot, the card is mounted (and the drive and card show up in Disk Utility). If I eject it then re-insert it, it won't mount (and doesn't show in Disk Utility). On restart, it shows up again.
I have read and tried various suggestions on the Apple Forums, and none of them have worked.

I examined the system log as I unmounted the SD card (visible since a reboot) and found the information about the unmounting of the card. When I re-inserted the card, nothing happened. No further log entries. Here is the log (with an interesting error about the LSOF being 'left open':
Jul 28 14:05:31 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/System/Library/CoreServices/Finder.app' [171] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100013,0)
Jul 28 14:05:31 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/usr/sbin/diskarbitrationd' [16] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100002,0)
Jul 28 14:05:31 marks-imac mds[40]: (Error) LSOF: File '/Volumes/CANON_DC' (fd=10) left open on device 16777221
Jul 28 14:05:32 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/System/Library/CoreServices/Finder.app' [171] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100013,0)
Jul 28 14:05:32 marks-imac com.apple.SecurityServer[15]: Succeeded authorizing right 'system.volume.removable.unmount' by client '/usr/sbin/diskarbitrationd' [16] for authorization created by '/System/Library/CoreServices/Finder.app' [171] (100002,0)

Used my card reader to import images, now see "incompatible JPEG" on images in camera

I have a Canon Power Shot A720 and used the card reader to import photos into the organizer. Now when I go back to erase some images from the camera I see many, but not all, of my 'once' images blacked out with a grey/white box in the center & a yellow question mark. Under the box it says "incompatible JPEG". What does that mean? It's never happened to me before, but I usually import my images directly from the camera.

Hi,
I'm not sure I understand your question since it's been a while since I had
trouble. When I had the trouble I was downloading from my camera and
storing them in the Organizer. My problem came when I edited those images
and RENAMED them. I guess the organizer didn't recognize the renamed
photos? Those were the images which had the yellow check mark. I now use a
card reader only, and I store them in 'Pictures' instead of the PSE
organizer. I haven't had any more problems. I think the Organizer, when
used properly, would be the best choice.....I just couldn't figure it out!
Frankly, I just didn't understand the Organizer and was used to my own
method for storage. I think that's what messed me up. I had help from a
computer technician to retrieve those images, and I haven't had any problems
since.
As for deleting images, I only delete images from my camera by using the
delete on my camera. I never, never delete from my card/camera by using the
prompt from my computer, like "do you want to delete these images from your
camera?"
Good luck!
Donna
I don't if I helped you at all. You're welcome to write back or hope for a
really good explanation on the forum boards.

SDCARD reader Read-Only

I have a 2012 Macbook Pro 13inch 2.5 GHz, 4GB Ram, 500GB HDD. Upgraded to Yosemite 10.10 and was looking to put Magic Lantern on a Canon camera, so I put the SDHC card in the card reader only to find that it sees the card as read-only. The lock button is in the off position (meaning it should be able to read and write to the card).
Have reset both the SMC and PRAM to no avail.
Just curious if I missed something with the 10.10 update. I have tried two different cards: One is an SDHC and the other not. Any help or guidance would be appreciated.

Never reformat a camera's memory card using your Mac — always reformat the card or delete pictures from it using your camera's menu commands, not the Mac. A card that's been formatted on a Mac or had pictures added to or deleted from it by a Mac is likely to be found unusable by many cameras. Reformatting in the camera usually resolves that problem.
As for your card being seen as read-only by the Mac, that's not a drawback if you adhere to the practices I've recommended above. But if you want to use an SD card for something other than uploading photos from your camera to your Mac, then it's a pain, and the problem ha been reported here a number of times before. For some people, inserting the card very fast into the SD slot has remedied the problem. Others have found that they need to push the card slightly upward, downward or to one side or the other while inserting it, rather than just pushing it straight in. Still others have found that certain cards' locking sliders bind against the side of the slot and get pushed into the locked (read-only) position as the card is inserted. You can experiment with all these ideas and see what happens, but in some cases just switching to a different brand of card has been the answer. And while it's irksome to contemplate resorting to a USB card reader when you have what ought to be a perfectly good SD reader built into your computer, for some people that has been preferable to relying on an unreliable SD slot.

SD card not mounting in card slot, mounts only with USB card reader

hi all,
I have browsed this forum "Ports and interfaces on the MacBook Pro (2008 and Later)" for a bit and searched for "SD" but did not find any posts directly related to my issue here.
I have a Kingston 512Mb card which mounts in my MacBook Pro only when I insert it in a cardreader inserted in the USB port.
Directly in the memory card slot it does not mount. Other SD cards do mount. I did not yet recognise a pattern in what mounts and does not mount.
I need to mount this specific SD card in the memory slot because bigger, newer SD cards are not accepted by the device I am using the card in (an iRex iLiad).
The Kingston 512Mb SD card is formatted as MS-DOS (FAT16) according to Disk Utility.
Any suggestions on what I could try? Buying other 512Mb cards is not that easy, there is not a lot available and only the ones on this list http://wiki.mobileread.com/wiki/IliadSD_Memorycardslist are supported by the device.
TIA!

Within a year or two, a device that is limited to 512MB and smaller cards — and only certain ones of those — will probably be completely useless. As you've found, no one else is interested in buying such tiny cards any more, and their production is likely to be discontinued very soon.
This does nothing to explain why your card can't be read in the built-in reader, though. One thing to check is the position of the "lock" slider on the card; a small handful of other posters with similar problems have reported that if the slider isn't securely locked or unlocked (I don't recall which), it gets disturbed as the card is inserted, and the card can't be read as a result.
If that doesn't solve the problem for you, just use your USB reader when you have to read that particular card. As you say, your other (presumably larger) cards are all read properly in the built-in reader, so you know the reader works. There may just be a minute manufacturing-tolerance problem with that particular card.

SD Card read only [Solved]

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