diff --git a/debian/2775-dirs b/debian/2775-dirs
deleted file mode 100644
index ad85adc..0000000
--- a/debian/2775-dirs
+++ /dev/null
@@ -1 +0,0 @@
-var/local
diff --git a/debian/changelog b/debian/changelog
index e015576..5890ea8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,45 @@
+base-files (25-6deepin5) unstable; urgency=medium
+
+  * Make /var/local to be root:root and 755 by default on new installs.
+
+ -- xinpeng.wang <wangxinpeng@uniontech.com>  Thu, 21 May 2026 16:23:08 +0800
+
+base-files (25-6deepin4) unstable; urgency=medium
+
+  * Delete the link/lib64 if the/etc/lib64 directory does not exist.
+
+ -- lichenggang <lichenggang@deepin.org>  Tue, 24 Jun 2025 21:27:50 +0800
+
+base-files (25-6deepin3) unstable; urgency=medium
+
+  * update codename , beige -> crimson.
+
+ -- lichenggang <lichenggang@deepin.org>  Tue, 24 Jun 2025 16:43:39 +0800
+
+base-files (25-6deepin1) unstable; urgency=medium
+
+  * add cp -p /usr/share/base-files/motd          /etc/motd
+
+ -- lichenggang <lichenggang@deepin.org>  Thu, 13 Feb 2025 20:44:34 +0800
+
+base-files (25-6deepin0) unstable; urgency=medium
+
+  * etc/issue 23 to 25 
+
+ -- lichenggang <lichenggang@deepin.org>  Tue, 11 Feb 2025 14:26:32 +0800
+
+base-files (25-6) unstable; urgency=medium
+
+  * share/motd Deepin to deepin. 
+
+ -- lichenggang <lichenggang@deepin.org>  Mon, 09 Dec 2024 17:36:46 +0800
+
+base-files (25-5) unstable; urgency=medium
+
+  * update deepin 25.
+
+ -- lichenggang <lichenggang@deepin.org>  Mon, 18 Nov 2024 15:24:03 +0800
+
 base-files (23.1-5) unstable; urgency=medium
 
   * Link bin, lib, sbin, $(USR_MERGE_RTLDLIB), $(USR_MERGE_MULTILIB) to usr/.
diff --git a/debian/postinst b/debian/postinst
index e1ad3a4..f6dd733 100644
--- a/debian/postinst
+++ b/debian/postinst
@@ -57,7 +57,7 @@ if [ ! -e "$DPKG_ROOT/etc/dpkg/origins/default" ]; then
     ln -sf #VENDORFILE# "$DPKG_ROOT/etc/dpkg/origins/default"
   fi
 fi
-
+cp -p /usr/share/base-files/motd          /etc/motd
 if [ "$1" = "configure" ] && [ "$2" = "" ]; then
   install_from_default dot.profile   /root/.profile
   install_from_default dot.bashrc    /root/.bashrc
diff --git a/debian/preinst b/debian/preinst
index de5b1f1..4d0a2b6 100644
--- a/debian/preinst
+++ b/debian/preinst
@@ -3,6 +3,11 @@ set -e
 
 if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
   msg=
+  # 解决升级过程中/usr/lib64目录不存在的问题，磐石导致
+  # 判断是否存在链接/lib64并且不存在/usr/lib64目录，则删除链接
+  if [ -L /lib64 ] && [ ! -d /usr/lib64 ]; then
+    rm -f /lib64
+  fi
   for d in bin lib lib32 lib64 libo32 libx32 sbin; do
     if [ -L "$DPKG_ROOT/$d" ]; then
       target=$(readlink "$DPKG_ROOT/$d")
diff --git a/debian/rules b/debian/rules
index 17ad36f..18fbe88 100755
--- a/debian/rules
+++ b/debian/rules
@@ -71,10 +71,8 @@ override_dh_compress:
 
 override_dh_fixperms:
 	dh_fixperms
-	cd debian/base-files && chown root:staff   var/local
 	cd debian/base-files && chmod 755  `find . -type d`
 	cd debian/base-files && chmod 1777 `cat ../1777-dirs`
-	cd debian/base-files && chmod 2775 `cat ../2775-dirs`
 	cd debian/base-files && chmod 700 root
 
 override_dh_installdeb:
diff --git a/etc/deepin_version b/etc/deepin_version
index 4099407..7273c0f 100644
--- a/etc/deepin_version
+++ b/etc/deepin_version
@@ -1 +1 @@
-23
+25
diff --git a/etc/issue b/etc/issue
index 5aa24ed..4cde1bd 100644
--- a/etc/issue
+++ b/etc/issue
@@ -1,2 +1,2 @@
-Deepin #OSNAME# 23 \n \l
+Deepin #OSNAME# 25 \n \l
 
diff --git a/etc/os-release b/etc/os-release
index a6396d7..9185464 100644
--- a/etc/os-release
+++ b/etc/os-release
@@ -1,8 +1,8 @@
-PRETTY_NAME="Deepin 23"
+PRETTY_NAME="Deepin 25"
 NAME="Deepin"
-VERSION_CODENAME=beige
+VERSION_CODENAME=crimson
 ID=deepin
 HOME_URL="https://www.deepin.org/"
 BUG_REPORT_URL="https://bbs.deepin.org"
-VERSION_ID="23"
-VERSION="23"
+VERSION_ID="25"
+VERSION="25"
diff --git a/share/motd b/share/motd
index 9ab89aa..0c22b78 100644
--- a/share/motd
+++ b/share/motd
@@ -1,4 +1,4 @@
-Welcome to Deepin 23 GNU/Linux
+Welcome to deepin 25 GNU/Linux
 
     * Homepage: https://www.deepin.org/