Differences between version 8 and predecessor to the previous major change of Ext3.
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| Newer page: | version 8 | Last edited on Wednesday, February 23, 2005 2:21:50 pm | by BrettNash | Revert |
| Older page: | version 7 | Last edited on Sunday, November 28, 2004 12:31:20 am | by AristotlePagaltzis | Revert |
@@ -1,7 +1,7 @@
[Ext3] is a journaled FileSystem based on [Ext2]. It also has some additional features such as extents (which reduce 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.
-Note that despite journalling, you should periodically fsck(8) [Ext3] FileSystem~s to ensure they are consistent. HardDisk errors f.ex
can still introduce problems.
+Note that despite journalling, you should periodically fsck(8) [Ext3] FileSystem~s to ensure they are consistent. HardDisk errors
can still introduce problems.
You can turn [Ext2] FileSystem~s into [Ext3] ones at any time by issuing
<pre>
@@ -17,9 +17,10 @@
<pre>
tune2fs -o acl /dev/''partition''
</pre>
-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
.
+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). Do not
mount an [Ext3] partition as type [Ext2], unless
you are sure the journal is empty. Otherwise you may
have a
+corrupted filesystem due to incomplete journal operations or that when it is mounted as ext3 the kernel will happily commit journal options to your modified filesytem
.
You can also enabled hashed directories with a 2.6 [Kernel]. This speeds up lookups for directories that contain a large numbers of files/directories.
<pre>
