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

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 --- 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 <

-- 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