What were you trying to do that didn't work?

Certain packages like cuda-drivers have a non-lua pretrans scriptlet. Such scriptlets require the presence of /bin/sh in the target root. Since Image Builder installs all packages in one big transaction to an empty root, an installation of such a package inevitably fails because there's obviosuly no /bin/sh in the root before the transaction.

An example of such a scriptlet:

if [ -x /usr/bin/nvidia-uninstall ]; then
    echo "Removing existing driver runfile install"
    /usr/bin/nvidia-uninstall -s || :
fi

Should be simple to reproduce this with the cuda package from https://developer.download.nvidia.com/compute/cuda/repos/fedora39/x86_64/

The error that can be found in osbuild-composer's logs is similar to this one:

error: Failed dependencies:
        /bin/sh is needed by cuda-drivers-550.54.14-1.x86_64
Traceback (most recent call last):
  File "/run/osbuild/bin/org.osbuild.rpm", line 382, in <module>
    r = main(args["tree"], args["inputs"], args["options"])
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/run/osbuild/bin/org.osbuild.rpm", line 338, in main
    subprocess.run([
  File "/usr/lib64/python3.12/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['rpm', '--verbose', '--root', '/run/osbuild/tree', '--nosignature', '--install', '/tmp/manifest.o4c0pxvl']' returned non-zero exit status 254.