diff --git a/20-grub.install b/20-grub.install
index 2a0ac323725056a79408466f812f75f0b539af27..739191040221b01827743f718a46a36d74a7e304 100755
--- a/20-grub.install
+++ b/20-grub.install
@@ -62,7 +62,7 @@ case "$COMMAND" in
                     "$KERNEL_DIR"/dtb
             do
                 [[ -e "$i" ]] || continue
-                rm -f "/boot/${i##*/}-${KERNEL_VERSION}"
+                rm -rf "/boot/${i##*/}-${KERNEL_VERSION}"
                 cp -aT "$i" "/boot/${i##*/}-${KERNEL_VERSION}"
                 command -v restorecon &>/dev/null && \
                     restorecon -R "/boot/${i##*/}-${KERNEL_VERSION}"
diff --git a/grub2.spec b/grub2.spec
index d6c657c0ee1101e5c7549bf45ee329c7072573cd..150af1fc21bee05805661f516cbd8b839821dadc 100644
--- a/grub2.spec
+++ b/grub2.spec
@@ -1,4 +1,4 @@
-%define anolis_release 8
+%define anolis_release 9
 %global _lto_cflags %{nil}
 
 %undefine _hardened_build
@@ -505,6 +505,9 @@ mv ${EFI_HOME}/grub.cfg.stb ${EFI_HOME}/grub.cfg
 %endif
 
 %changelog
+* Thu Mar 02 2023 Chunmei Xu <xuchunmei@linux.alibaba.com> - 2.06-9
+- fix remove dtb-xxx dir failed
+
 * Mon Dec 19 2022 Funda Wang <fundawang@yeah.net> - 2.06-8
 - Deal with gettext-runtime migration