On Thu, 22 May 2003, Debbie Xu wrote: > Thanks a lot, it works! > Why do I have to use "-o loop" option? There's additional trickery involved for viewing a file as a block device. Mount needs to know about it. > > Tx, > Debbie > > -----Original Message----- > From: Theodore Ts'o [mailto:tytso@mit.edu] > Sent: Wednesday, May 21, 2003 7:55 PM > To: Debbie Xu > Cc: 'ext3-users@redhat.com' > Subject: Re: How to create EXT3 file system image from directories? > > On Wed, May 21, 2003 at 02:57:00PM -0700, Debbie Xu wrote: > > Hi there, > > > > Is there a utility to create an EXT3 file system image from directories? > > Just like the mkfs.jffs2 which creates a JFFS2 file system image from > > directories? > > > > The "mke2fs -j" only creates the bare bone file system, what I want is to > > build an image with pre-built content. > > The easist thing to do is to create a filesystem on a file using > mke2fs, and then mount the filesystem using the loopback device: > > dd if=/dev/zero of=foo.img bs=1k count=16384 > mke2fs -f foo.img > mount -o loop foo.img /mnt > cp -r /source /mnt > umount /mnt > > - Ted > _______________________________________________ Ext3-users@redhat.com https://www.redhat.com/mailman/listinfo/ext3-users
