I have umounted /dev/hda3 and run fsck on it. It reports /: clean, 73566/9222528 files, 702234/9215285 blocks.
I then try to remount the device: munt -o remount,rw /dev/hda3
I am given the following message:
EXT3-fs error (device hda3): ext3_remount: Abort forced by user
mount: block device /dev/hda3 is write-protected, mounting read-only
EXT3-fs error (device hda3): ext3_remount: forced by user