deploy-workbench.sh: bugfix wrong check

allow more snapshots on the persistence partition

from 10 to 100 MiB

deploy-workbench.sh

@@ -189,7 +189,8 @@ create_persistence_partition() {
         rw_img_name="workbench_vfat.img"
         rw_img_path="${ISO_PATH}/staging/${rw_img_name}"
         if [ ! -f "${rw_img_path}" ] || [ "${DEBUG:-}" ] || [ "${FORCE:-}" ]; then
-                ${SUDO} dd if=/dev/zero of="${rw_img_path}" bs=10M count=1
+                persistent_volume_size=100
+                ${SUDO} dd if=/dev/zero of="${rw_img_path}" bs=1M count=${persistent_volume_size}
                 ${SUDO} mkfs.vfat "${rw_img_path}"
 
                 # generate structure on persistent partition
@@ -381,7 +382,7 @@ prepare_chroot_env() {
         if [ -z "${VERSION_CODENAME:-}" ]; then
                 . /etc/os-release
                 echo "TAKING OS-RELEASE FILE"
-                if [ "${ID}" = "debian" ]; then
+                if [ ! "${ID}" = "debian" ]; then
                         echo "ERROR: ubuntu detected, then you are enforced to specify debian variant"
                         echo "  use for example \`VERSION_CODENAME='bookworm'\` or similar"
                         exit 1