Re: [PATCH] test: fix 'make assets' failure as root

["Richard W.M. Jones" <rjones@redhat.com>]

On Thu, Sep 25, 2025 at 01:43:06PM +0800, Yumei Huang wrote:
> Running `make assets` under `test` as root fails with a "Permission denied"
> error when `prepare-distro-img.sh` invokes `virt-edit` and `guestfish`. This
> is due to a known bug in libvirt.
> 
> Work around the issue by switching to the direct backend.
> 
> Signed-off-by: Yumei Huang <yuhuang@redhat.com>
> ---
>  test/prepare-distro-img.sh | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/test/prepare-distro-img.sh b/test/prepare-distro-img.sh
> index 0d967c9..423eea7 100755
> --- a/test/prepare-distro-img.sh
> +++ b/test/prepare-distro-img.sh
> @@ -3,6 +3,8 @@
>  IMG="$1"
>  PASST_FILES="$(echo ../*.c ../*.h ../*.sh ../*.1 ../Makefile ../README.md)"
>  
> +export LIBGUESTFS_BACKEND=direct

Please add a comment that this is only added as a temporary hack until
we can get a proper fix (in libguestfs possibly, see Dan's earlier
email).

Rich.

>  virt-edit -a $IMG /lib/systemd/system/serial-getty@.service -e 's/ExecStart=.*/ExecStart=\/sbin\/agetty --autologin root -8 --keep-baud 115200,38400,9600 %I $TERM/g'
>  
>  guestfish --rw -a $IMG -i <<EOF
> -- 
> 2.47.0

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org