[SOLVED] ext4 file system on regular file

At least it is possible with ext2: to create filesystem ext2 on regular file and mount this as usual, I am interesting is it possible with ext4?

Certainly. You can create any type of filesystem on a file and then mount that file as a loop device. Yes, mkfs.ext4 will ask whether you really want to do that, but will proceed if you say "y".

Yes. It is possible in the same way.

dd if=/dev/zero bs=1M count=1024 of=/tmp/foo.ext4
/sbin/mkfs.ext4 /tmp/foo.ext4
sudo mount -o loop /tmp/foo.ext4 /mnt/

Originally Posted by Turbocapitalist Yes. It is possible in the same way. [/code]

Great thanks. I remembered that I was reading something similar about ext2 in documentation for Xen.