You can convert ext2 to ext3 easily on a mounted file system (e.g. root file
system)...
#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
partition> >> 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
fstab> and reboot again.
>
> Is it possible? Why is this requirement - "no fs mounted" - here?
Journal
is> stored inside of fs structure?
>
> do I need to create boot floppy with tune2fs?
>
> Is there any option how to convert ext2 / to ext3?