Re: Turn "journalling" off on ext3: How to?

On 2007-02-20, CBFalconer <cbfalconer@xxxxxxxxx> wrote:
General Schvantzkoph wrote:
On Mon, 19 Feb 2007 22:01:30 +0000, Kenny McCormack wrote:

... snip ...

Is there a way to turn off the journalling?
(Or is this something I really shouldn't be doing?)

Change /etc/fstab to mount the partitions as EXT2 instead of EXT3
then do a reboot or just unmount the partitions and then remount
them. EXT3 is just EXT2 plus a journal.

But don't try going the other way, or the fit will hit the shan.

As long as you don't try to apply a journal that has become
stale, you should be able (with proper procedure) to convert
from ext2 to ext3 without creating a mess. Back on Redhat
7.2, 7.3, 8.0, or 9, I converted from ext2 to ext3 by simply
doing 'tune2fs -j' on the applicable partitions and updating
initrd to include the ext3 module. Other than forgetting to
update initrd the first time through, it worked without any
problems.

--
Robert Riches
spamtrap42@xxxxxxxxxxx
(Yes, that is one of my email addresses.)
.

Relevant Pages

  • [RFC] ext3/jbd, kernel 2.6.13, make ext3 mountable as ext2 when journal is empty.
    ... This patch makes ext3 mountable as ext2 even in case of a power ... When mounting an ext3 file system as ext2 (without journalling) an ... The idea is that, at this point, all checkpointing data is ...
    (Linux-Kernel)
  • Re: Collapse ext2 and 3 please
    ... ext2 and ext3 with the same kernel. ... ext3 may evolve differently from ext2 with time. ... with journalling. ... Linus demanded two fs'es in this case, ...
    (Linux-Kernel)
  • Re: Turn "journalling" off on ext3: How to?
    ... I recently installed Knoppix on a laptop, and found that ext2 ... is not a filesystem choice. ... The choices are ext3, reiserfs, and jfs. ... Turn "journalling" off on ext3: ...
    (comp.os.linux.misc)
  • Re: reverting to ext2 (Was: Re: How to kill X?)
    ... Quite a nice allrounder with the other two ext3 options ... Or is journalling data different from normal ... It is obviously a larger performance hit to write the ... It was my understanding that ext3 is ext2 with some additional structure ...
    (Debian-User)
  • Re: Turn "journalling" off on ext3: How to?
    ... I recently installed Knoppix on a laptop, and found that ext2 ... The choices are ext3, reiserfs, and jfs. ... Turn "journalling" off on ext3: ... Change /etc/fstab to mount the partitions as EXT2 instead of EXT3 then do ...
    (comp.os.linux.misc)