Differences between version 14 and predecessor to the previous major change of Ext3.
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| Newer page: | version 14 | Last edited on Monday, May 15, 2006 12:30:04 pm | by CraigBox | Revert |
| Older page: | version 8 | Last edited on Wednesday, February 23, 2005 2:21:50 pm | by BrettNash | Revert |
@@ -17,15 +17,21 @@
<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). Do not
mount an [Ext3] partition as type [Ext2], unless
you are sure
the journal is
empty. Otherwise you
may have a
-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
.
+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. However, __beware__: do not do this if the ext3 partition was not cleanly unmounted! If
the journal was not
empty before doing so, your FileSystem
may become
corrupted. This may happen either right away
due to incomplete journal operations or once you mount
it as [Ext3] again because
the [Kernel]
will then
happily commit old operations
to your now
modified FileSystem
. So make sure the [Ext3] FileSystem was properly flushed and unmounted before you attempt to mount it as [Ext2]. (AddToMe: is this sufficient to ensure integrity?)
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>
-tune2fs -o
dir_index /dev/''partition''
+tune2fs -O
dir_index /dev/''partition''
fsck.ext3 -D /dev/''partition''
</pre>
The fsck is required to move the existing directories to the new format. If you ever remount the filesystem as ext2, directories that are written to will be converted back to the old format, so you need rerun the fsck.
+
+-----
+CategoryFileSystem%%%
+CategoryJournallingFileSystem%%%
+CategoryInodeFileSystem
