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Q: How do I convert my ext2 partition to ext3? (was: How do I use ext3?)
Before you can mount a partition as ext3 you have to create a journal on it. The easiest way to do it is to type:
tune2fs -j /dev/hdaX
This can be done on an unmounted or on a mounted filesystem. If you create the journal on a mounted filesystem you will see a .journal file. Don't try to delete this and don't back this up or restore it from backup! If you run tune2fs -j on an unmounted partition an unvisible journal file will be created.
Now you can mount the filesystem as ext3 using:
mount -t ext3 /dev/hdaX /mnt/somewhere
With mke2fs -j /dev/hdaX you can format a partition as ext3 (as always it will be also usable as ext2 partion).
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