On Tue, Feb 19, 2019 at 10:31:24PM -0800, Andreas Dilger wrote: > On Feb 19, 2019, at 12:03 AM, Richard W.M. Jones <rjones@xxxxxxxxxx> wrote: > > > > > > This might interest/disgust/shock/scare(?!) people on this list: > > > > $ time ./nbdkit --filter=partition -U - linuxdisk . partition=1 --run 'qemu-img convert $nbd /var/tmp/ext2fs.img' > > > > real 0m1.314s > > user 0m0.424s > > sys 0m0.889s > > > > $ ls -lh /var/tmp/ext2fs.img > > -rw-r--r--. 1 rjones rjones 351M Feb 19 07:44 /var/tmp/ext2fs.img > > > > Code here: > > > > https://github.com/rwmjones/nbdkit/commit/6e7908c828e60f082d84d866070fe8406e6f2b04 > > How does this compare to "mke2fs -d <source_dir>"? Wow, good question. I was completely unaware of this option until now, but it'll make the implementation massively simpler. (We still need the linuxdisk plugin.) Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/
