Fix Docker/Podman in rootless mode

README.md

@@ -208,7 +208,7 @@ current value of `${NB_UID}` and `${NB_GID}`.
 
 The server logs appear in the terminal.
 
-#### Using Podman (rootless mode, 3.11.5+)
+#### Using Podman (rootless mode, 3.11.6+)
 
 Create an empty home directory:
 

base/scripts/usr/local/bin/start.sh

@@ -82,7 +82,7 @@ if [ "$(id -u)" == 0 ] ; then
     # Update the home directory if the desired user (NB_USER) is root and the
     # desired user id (NB_UID) is 0 and the desired group id (NB_GID) is 0.
     if [ "${NB_USER}" = "root" ] && [ "${NB_UID}" = "$(id -u "${NB_USER}")" ] && [ "${NB_GID}" = "$(id -g "${NB_USER}")" ]; then
-        sed -i 's|/root|/home/root|g' /etc/passwd
+        sed -i "s|/root|/home/root|g" /etc/passwd
         # Do not preserve ownership in rootless mode
         CP_OPTS="-a --no-preserve=ownership"
         # Pip: Install packages to the user site
@@ -98,7 +98,8 @@ if [ "$(id -u)" == 0 ] ; then
         if [[ ! -e "/home/${NB_USER}" ]]; then
             _log "Attempting to copy /home/jovyan to /home/${NB_USER}..."
             mkdir "/home/${NB_USER}"
-            if cp -a /home/jovyan/. "/home/${NB_USER}/"; then
+            # shellcheck disable=SC2086
+            if cp ${CP_OPTS:--a} /home/jovyan/. "/home/${NB_USER}/"; then
                 _log "Success!"
             else
                 _log "Failed to copy data from /home/jovyan to /home/${NB_USER}!"