diff --git a/os-prober-1.79.tar.gz b/os-prober-1.79.tar.gz
deleted file mode 100644
index 65e5660..0000000
Binary files a/os-prober-1.79.tar.gz and /dev/null differ
diff --git a/os-prober-1.81.tar.gz b/os-prober-1.81.tar.gz
new file mode 100644
index 0000000..01bb0da
Binary files /dev/null and b/os-prober-1.81.tar.gz differ
diff --git a/os-prober-gentoo-fix.patch b/os-prober-gentoo-fix.patch
deleted file mode 100644
index 8545db2..0000000
--- a/os-prober-gentoo-fix.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-Index: os-prober/linux-boot-probes/mounted/common/90fallback
-===================================================================
---- os-prober.orig/linux-boot-probes/mounted/common/90fallback
-+++ os-prober/linux-boot-probes/mounted/common/90fallback
-@@ -33,7 +33,7 @@ for kernpat in /vmlinuz /vmlinux /boot/v
- 			# Dracut initramfses are named differently again.
- 			initrdname3=$(echo "$kernfile" | sed "s/vmlinu[zx]/initramfs\*/" | sed 's/$/.img/')
- 			# And Gentoo's also
--			initrdname4=$(echo "$kernfile" | sed "s/kernel/initramfs\*/")
-+			initrdname4=$(echo "$kernfile" | sed "s/kernel\|vmlinu[zx]/initramfs\*/")
- 			foundinitrd=0
- 			for initrd in $(eval ls "$initrdname" "$initrdname1" "$initrdname2" "$initrdname3" "$initrdname4" 2>/dev/null); do
- 				if [ "$initrd" != "$kernfile" ] && [ -f "$initrd" ] && [ ! -L "$initrd" ]; then
diff --git a/os-prober-grub2-parsefix.patch b/os-prober-grub2-parsefix.patch
index 0ef8bda..7f85626 100644
--- a/os-prober-grub2-parsefix.patch
+++ b/os-prober-grub2-parsefix.patch
@@ -1,7 +1,7 @@
-Index: os-prober-1.58/linux-boot-probes/mounted/common/40grub2
-===================================================================
---- os-prober-1.58.orig/linux-boot-probes/mounted/common/40grub2
-+++ os-prober-1.58/linux-boot-probes/mounted/common/40grub2
+diff --git a/linux-boot-probes/mounted/common/40grub2 b/linux-boot-probes/mounted/common/40grub2
+index 664505f..5895e45 100755
+--- a/linux-boot-probes/mounted/common/40grub2
++++ b/linux-boot-probes/mounted/common/40grub2
 @@ -77,7 +77,7 @@ parse_grub_menu () {
  					ignore_item=1
  				fi
@@ -17,6 +17,6 @@ Index: os-prober-1.58/linux-boot-probes/mounted/common/40grub2
  			;;
 -			initrd)
 +			initrd*)
- 				initrd="$(echo "$2" | sed 's/(.*)//')"
- 				# Initrd same.
- 				if [ "$partition" != "$bootpart" ]; then
+ 				shift
+ 				initrd=""
+ 				for initrd_path in "$@"; do
diff --git a/os-prober.spec b/os-prober.spec
index 6d0314a..2e6f412 100644
--- a/os-prober.spec
+++ b/os-prober.spec
@@ -1,6 +1,6 @@
 Name:           os-prober
-Version:        1.79
-Release:        2
+Version:        1.81
+Release:        1
 Summary:        Probe disks on the system for other operating systems
 License:        GPLv2+ and GPL+
 URL:            http://kitenet.net/~joey/code/os-prober/
@@ -12,7 +12,6 @@ Patch2:         os-prober-mounted-partitions-fix.patch
 Patch3:         os-prober-umount-fix.patch
 Patch4:         os-prober-grub2-parsefix.patch
 Patch5:         os-prober-grepfix.patch
-Patch6:         os-prober-gentoo-fix.patch
 
 BuildRequires:  gcc 
 Requires:       udev coreutils util-linux grep /bin/sed /sbin/modprobe grub2-tools-minimal
@@ -84,6 +83,9 @@ fi
 %{_libexecdir}/*
 
 %changelog
+* Sat Jan 28 2023 yixiangzhike <yixiangzhike007@163.com> - 1.81-1
+- update version to 1.81
+
 * Tue Oct 25 2022 yanglongkang <yanglongkang@h-partners.com> - 1.79-2
 - rebuild for next release