Getting Read Only File System errors on SD Card

[globalnerds]

I copied a bunch of images onto and SD card (on my Mac), then used the SD card in a digital photo frame. I wanted to add some more pictures and received and error that the volume was read only. I am running a Power Book OS Version 10.6.5. The card is not locked. Here is everything I have tried so far - nothing below has worked:

I have tried the following: Disk Utility - Restore button was greyed out. Then I tried the following commands:

sudo chmod -RN /Volumes/....
I received the following error messages (one per file in the volume):

chmod: Failed to clear ACL on file IMG_0010.jpg: Read-only file system

I then tried
sudo chown -R USERNAME /Volumes/....
I received the following error messages (one per file in the volume):

chown: /volumes/Untitled/IMG_0011.jpg: Read-only file system

It is an SD card where I put a bunch of images onto it for a digital picture frame. After putting it in the frame I wanted to add files to the SD card and this is what I get. No, the SD card is not locked.

Any ideas???

 

[DewGuy1999]

What does Disk Utility say the format is on it?

 

[globalnerds]

MS DOS FAT - which is odd as the first time I used the SD card was on my mac. I don't care if I have to reformat it as I have all of the pictures that were on SD card on my mac.

Thanks for your help.

 

[DewGuy1999]

Okay, FAT should be read/write on a Mac. NTFS is read only without using a 3rd party app.

I don't use Terminal so most of the commands you posted above are "greek to me" but I did notice mention of "ACL" so, I Googled it to see what that was (I thought it was something to do with MS Windows) anyway, I found this, maybe it will make some sense to you and help out with this problem:

OS X ACL usage

P.S.: You mentioned you have a PowerBook and that you're running OS X 10.6.5 (Snow Leopard) that's not possible as a PowerBook is a PowerPC based Mac and Snow Leopard only runs on Intel based Macs.

 

[Dalton63841]

For something like an SD card you should right click on the SD card drive, Get Info, and check ignore ownership.

 

[globalnerds]

Sorry, it is a Mac Book Pro not a power book. It is about 1 year old

I have attached the info on the SD card.

 

[Knoodles]

Is there by any chance a very small slider switch on the SD card?

 

[globalnerds]

Yes there is, and it is not in the "locked" position.

 

[DewGuy1999]

Yes there is, and it is not in the "locked" position.

Have you tried toggling the switch to the other position (irregardless of what it says) and trying it in your MBP? Can you change it from read only to read/write in the photo frame? Can you format it in the photo frame?

 

[globalnerds]

I have toggled the switch on the SD card. I cannot format it with the photo frame. It is odd, because before putting it in the photo frame (it was new) I was able to add pics, once I put it in the photo frame it became read only.

 

[DewGuy1999]

I have toggled the switch on the SD card. I cannot format it with the photo frame. It is odd, because before putting it in the photo frame (it was new) I was able to add pics, once I put it in the photo frame it became read only.

Are you using the MBP's built in SD card reader to read the card? Can you try it in another device that uses/reads SD cards?

 

[gatepc]

Had this happen to one of my SD cards it ended up being a precursor to a failing SD card. About a week after this started the card completely failed. I would back up your data that is on it now!

 

[usellis]

I finally figured it out, guys. Go to System Preferences / Sharing

Select "File Sharing"

The pane that appears will show "Shared Folders" and "Users"

Click on the plus sign under "Shared Folders"

A new window will appear, allowing you to add the SD card to the list.