Differences between version 2 and predecessor to the previous major change of Ext3.
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| Newer page: | version 2 | Last edited on Friday, November 15, 2002 12:58:52 pm | by JohnMcPherson | Revert |
| Older page: | version 1 | Last edited on Thursday, November 14, 2002 6:05:52 pm | by PerryLorier | Revert |
@@ -1,7 +1,14 @@
Ext3 is an extension of the [Ext2] filesystem, currently adding journalling support.
To turn your [Ext2] file systems into Ext3 file systems run the command:
- tune2fs -j /dev/''partition''
-then
change fstab(5) to mount the partition as Ext3.
+ tune2fs -j ''[[options]''
/dev/''partition''
+
+where the only journal option currently supported is __-J size=xMB__. See tune2fs(8) for min/max size.
+
+Note that unlike most disk tool commands, you add the journal to a currently mounted partition.
+
+Also remember to
change fstab(5) to mount the partition as Ext3, and then
+unmount/remount it or reboot. (You do not have to do this immediately).
+You can always mount an ext3 partition as type ext2 -- you just will not have any journalling performed
.
Ext3 is also gaining some features such as Extents (which reduces the amount of overhead with storing where a file is stored on the disk for large files), and hash based lookups on Directories solving the problem ext2 has with large directories being very slow.
