If you want to start moving directories out of flash and onto the SD card, the easiest ones to move are /opt and /home.
 | Important |
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Before you start moving any directories from flash to SD, you should shut down the Opie interface, otherwise there's a good chance it will crash at some point. Once you're finished moving directories, you can restart Opie with:
# /etc/init.d/opie start
| |
Moving /opt and /home to SD requires nothing more than copying the directories to the mounted SD card, removing the originals, and creating a symlink from the old location:
# for d in opt home ; do > cp -a /$d /mnt/card/$d > rm -rf /$d > ln -sf /mnt/card/$d /$d > done
 | Tip |
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A good way to verify that the move was done correctly is to run the df command both before and after the move. You should see a decrease in space usage under the root filesystem, and an identical increase in usage under /mnt/card. | |