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Re: Converting Ext2 -> Ext3

You can convert ext2 to ext3 easily on a mounted file system (e.g. root file

#1 - tune2fs -j /dev/hda
#2 - edit /etc/fstab to change partition type to ext3
#3 - reboot

This does assume you've already got ext3 compiled into the kernel --
otherwise you need to install the new kernel before reboot.

----- Original Message -----
From: "Ihar Filipau" <philips iph to>
To: <Ext3-users redhat com>
Sent: Sunday, August 12, 2001 10:29 AM
Subject: Converting Ext2 -> Ext3

> Reading archives I did found letter related to my question:
> Stephen C. Tweedie:
> >
> > On Fri, Jul 20, 2001 at 08:27:44PM +0300, Nikolaos Kefalas wrote:
> >> I want only to  ask  ,  if it is necessary  to run tun2fs -J the kernel
to have
> >> support for ext3 .
> >> I want to boot , from another  linux to convert my partions since the
> >> must not be
> >> mounted  but this does n't support ext3  :-(.
> >
> >No, you don't need any kernel support to run tune2fs.  You obviously
> >need kernel support to mount the filesystem as ext3, but you can add
> >the journal and keep mounting it as ext2 without any extra kernel
> >support.
> Is it possible to convert ro fs?
> I just want to boot system with ro /, tune2fs -j /dev/hda, reboot, fix
> and reboot again.
> Is it possible? Why is this requirement - "no fs mounted" - here? Journal
> stored inside of fs structure?
> do I need to create boot floppy with tune2fs?
> Is there any option how to convert ext2 / to ext3?

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