Re: convert ext2 to ext3

[Bezecný Martin <martin74@wo.cz>]

Andreas Janssen píše v Pá 14. 01. 2005 v 15:53 +0100:
> Hello
>
> Peter Teunissen (<oneman@oneword.demon.nl>) wrote:
>
> > Since noflushd performs poorly with ext3, I want to convert my
> > filesystem from ext3 to ext2. Googling around gave me only a vague
> > impression on what to do. Can someone explain how to go about this or
> > point me to a good how-to, manual, etc.?
>
> I think changing the fs type from ext3 to ext2 in your fstab, unmounting
> and mounting it (or rebooting if it is your root fs) is all you need to
> do.
>
> best regards
>  Andreas Janssen
>
> -- 
> Andreas Janssen <andreas.janssen@bigfoot.com>
> PGP-Key-ID: 0xDC801674 ICQ #17079270
> Registered Linux User #267976
> http://www.andreas-janssen.de/debian-tipps-sarge.html
Hello ,
I've got one experience, with changing ext3 to ext2 when I need to resize partition with ext3. I tried parted and QTparted, but this program doesn't support resize ext3 filesystems directly. I changed ext3 to ext2, remount, but parted still display fs as ext3 even result of mount was ext2. I think that problem was maybe in .journal file which still exists in / directory. Maybe type of filesystem is stored in superblock. I don't know exactly.

Somewhere a I seen method how to remove journal... Attention! backup data and run fsck before remove .journal. I was never tried this command

1. run fsck 
2. change ext3 -> ext2 in fstab.
2. remount or reboot
3. tune2fs -O ^has_journal /dev/?d?