diff --git a/SPECS/dracut/90tmpfsroot/tmpfsroot-mount.sh b/SPECS/dracut/90tmpfsroot/tmpfsroot-mount.sh
index af065b51bb..d7aa9097c9 100644
--- a/SPECS/dracut/90tmpfsroot/tmpfsroot-mount.sh
+++ b/SPECS/dracut/90tmpfsroot/tmpfsroot-mount.sh
@@ -3,7 +3,7 @@
 # Licensed under the MIT License.
 
 info "mount tmpfs for root"
-if ! mount -t tmpfs -o size=1G tmpfs $NEWROOT; then
+if ! mount -t tmpfs tmpfs $NEWROOT; then
   warn "Failed to mount tmpfs on $NEWROOT"
   die
 fi
diff --git a/SPECS/dracut/dracut.signatures.json b/SPECS/dracut/dracut.signatures.json
index f94dd05f06..729acd38b3 100644
--- a/SPECS/dracut/dracut.signatures.json
+++ b/SPECS/dracut/dracut.signatures.json
@@ -13,7 +13,7 @@
   "lgpl-2.1.txt": "dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551",
   "megaraid.conf": "914824cdbe0c525b71efa05a75e453335b0068beb8bc28bef2a5866d74bf7dd4",
   "tmpfsroot-module-setup.sh": "d1e2d512a3769fb70f7726b1899f89950d5bfc2199e8cde5df44adebd740006f",
-  "tmpfsroot-mount.sh": "884c4c9a17118229dfbb40ec9a4a23d307c12349dbf19adc1a2d8640c2f77fd0",
+  "tmpfsroot-mount.sh": "5fdcac59d2a9560215f91619373fb217592e7c9e51ff74cd21883411ea6ded66",
   "module-setup.sh": "8f5a0d3cc393d78bcb523b0d53c578d2767d688f00e84b525355bbb31d753da4",
   "overlayfs-mount.sh": "28f47c107a4435c5153bdb5b2f92f20b7a75bf3932216635ee810875c27dd55b"
  }
diff --git a/SPECS/dracut/dracut.spec b/SPECS/dracut/dracut.spec
index 3d275a1faf..264c8c2bc2 100644
--- a/SPECS/dracut/dracut.spec
+++ b/SPECS/dracut/dracut.spec
@@ -4,7 +4,7 @@
 Summary:        dracut to create initramfs
 Name:           dracut
 Version:        102
-Release:        14%{?dist}
+Release:        15%{?dist}
 # The entire source code is GPLv2+
 # except install/* which is LGPLv2+
 License:        GPLv2+ AND LGPLv2+
@@ -345,6 +345,9 @@ ln -srv %{buildroot}%{_bindir}/%{name} %{buildroot}%{_sbindir}/%{name}
 %dir %{_sharedstatedir}/%{name}/overlay
 
 %changelog
+* Fri May 30 2025 Lishan Liu <lishan.liu@intel.com> - 102-15
+- Update tmpfs mount command in tmpfsroot-mount.sh
+
 * Thu May 22 2025 Mun Chun Yep <mun.chun.yep@intel.com> - 102-14
 - Revert 6d93d4260 to fix tmpfs mount issue.
 
diff --git a/toolkit/imageconfigs/edge-image-tink.json b/toolkit/imageconfigs/edge-image-tink.json
index 50891d79e6..38b215426f 100644
--- a/toolkit/imageconfigs/edge-image-tink.json
+++ b/toolkit/imageconfigs/edge-image-tink.json
@@ -43,7 +43,7 @@
                 }
             ],
             "KernelCommandLine": {
-                "ExtraCommandLine": "root=tmpfs rootflags=size=1G,mode=0755 rd.skipfsck noresume quiet splash modules-load=nbd"
+                "ExtraCommandLine": "root=tmpfs rootflags=mode=0755 rd.skipfsck noresume quiet splash modules-load=nbd"
             },
             "Hostname": "EMT-tink",
             "DisableRpmDocs": true,
diff --git a/toolkit/imageconfigs/scripts/setup-tink-image.sh b/toolkit/imageconfigs/scripts/setup-tink-image.sh
index ac23113cb9..d4d0a4ca1b 100755
--- a/toolkit/imageconfigs/scripts/setup-tink-image.sh
+++ b/toolkit/imageconfigs/scripts/setup-tink-image.sh
@@ -16,8 +16,6 @@ mkdir -p /etc/fluent-bit
 if [ ! -f /etc/fluent-bit/fluent-bit.conf ]; then
   touch /etc/fluent-bit/fluent-bit.conf
 fi
-echo "$pprefix: fstab contents $(cat /etc/fstab)"
-echo 'tmpfs   /   tmpfs   defaults,size=1G   0   0' > /etc/fstab
 echo "$pprefix: $(du -ah /usr/share)"
 find /usr/share -type f \
   ! -path "/usr/share/terminfo/v/vt100" \