How to burn a ext3 file system on a cd?

[Michael Schwendt]

On Thu, 18 Dec 2003 17:30:20 +0100, Leonard den Ottolander wrote:

> Hallo Hans,
> 
> > I need ext3 becouse i need
> > to store checksum files on a cd with ACL's.
> 
>  Proceed as follows:
> create an image of about 620M:
> # dd if=/dev/zero of=<ext3 img> bs=1k count=62M

1k*62M would be much more than 620M.

> # mke2fs -F -m 0 <ext3 img>
> # tune2fs -j -c 0 -i 0 <ext3 img>

A journal for a file to be stored on CD?

> # mount -o loop <ext3 img> /mnt/tmp
> copy your data to /mnt/tmp
> # umount /mnt/tmp
> and burn the image to iso (cd-rw):
> # cdrecord [blank=fast] dev=0,0,0 speed=<speed> -v <ext3 img>
> 
>  When mounting the cd you might need to specify the file system type using 
> "mount -t ext3" depending on your /etc/fstab. Works like a charm.

Really? Does it work for you? I was curious enough to see what I would
get, and although cdrecord writes the raw data happily, I get this:

# mount -t ext3 -o ro /dev/cdrom /mnt/cdrom
mount: wrong fs type, bad option, bad superblock on /dev/cdrom,
       or too many mounted file systems
 
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