Hanna Czenczek authored Sep 06, 2021 and Thomas Huth committed Sep 07, 2021

Because I forgot to CC Thomas on the discussion adding this post, it was
merged prematurely.  This patch updates the post to incorporate the
feedback I received on it:

- Title change: This article mostly deals with presenting a guest image
  in one image format as a raw image, so the title should reflect that;
  there is much less focus on exporting block devices from a live VM

- Mention libguestfs, and contrast against it; make a note that
  libguestfs provides security that FUSE exports cannot provide

- Have a full example in the intro, to show where we are going with this
  post

- Some heading depths changed (nesting did not really make sense)

- Be more explicit that by "file mounts" I do not mean a filesystem with
  a root directory and a single file in it

- Explicitly mention that "/" is a directory without a name, to
  illustrate the fact that root nodes do not have names

- Short intro for "QEMU block exports", explaining its place in this
  post

- Make all exports writable

- Use "exp0" as export ID to get shorter lines that fit better into 80
  characters

- Reference the intro example in the intro of "Mounting an image on
  itself"

- Show "qemu-fuse-disk-export.py" in *italic* instead of as `code`
  (because I had all other command names in *italic*)

Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20210906162916.21714-1-hreitz@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>