How do I prevent a memory card from mounting as read-only in Ubuntu Linux?

How do I prevent a memory card from mounting as read-only in Ubuntu Linux? I'm using Ubuntu 9.04 and when I try to mount an SD card with the GUI I have to type sudo mount -o remount,rw /media/disk before I can write anything to the card. Is there a hidden setting to make it mount read-write?
Asked by: Guest \| Views: 312

Total answers/comments: 2

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bert [Entry]

I ran sudo fsck -a ... on the offending device. After fixing the file system corruption it mounts read-write. I had the problem again, and fixed it again with fsck. Will have to be more careful about always ejecting properly.

bert [Entry]

Did you check the write protection hard-switch on the sd-card reader adapter? That was the problem for me.