diff --git a/archiso/airootfs/boot/grub/background.png b/archiso/airootfs/boot/grub/background.png
new file mode 100644
index 0000000..47e33fc
Binary files /dev/null and b/archiso/airootfs/boot/grub/background.png differ
diff --git a/archiso/efiboot/loader/entries/01-archiso-x86_64-linux.conf b/archiso/efiboot/loader/entries/01-archiso-x86_64-linux.conf
deleted file mode 100755
index 8f8fa5a..0000000
--- a/archiso/efiboot/loader/entries/01-archiso-x86_64-linux.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-title    BBTTMS Linux install medium (x86_64, UEFI)
-sort-key 01
-linux    /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-initrd   /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
-options  archisobasedir=%INSTALL_DIR% archisosearchuuid=%ARCHISO_UUID% cow_spacesize=4G copytoram=n
diff --git a/archiso/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf b/archiso/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf
deleted file mode 100755
index c42fab0..0000000
--- a/archiso/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf
+++ /dev/null
@@ -1,7 +0,0 @@
-title    BBTTMS Linux install medium (x86_64, UEFI) with speech
-sort-key 02
-linux    /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-initrd   /%INSTALL_DIR%/boot/intel-ucode.img
-initrd   /%INSTALL_DIR%/boot/amd-ucode.img
-initrd   /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
-options  archisobasedir=%INSTALL_DIR% archisosearchuuid=%ARCHISO_UUID% accessibility=on cow_spacesize=4G copytoram=n
diff --git a/archiso/efiboot/loader/entries/03-archiso-x86_64-memtest86+.conf b/archiso/efiboot/loader/entries/03-archiso-x86_64-memtest86+.conf
deleted file mode 100755
index d0b305c..0000000
--- a/archiso/efiboot/loader/entries/03-archiso-x86_64-memtest86+.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-title    Memtest86+
-sort-key 03
-efi      /boot/memtest86+/memtest.efi
diff --git a/archiso/efiboot/loader/loader.conf b/archiso/efiboot/loader/loader.conf
deleted file mode 100755
index 2d137aa..0000000
--- a/archiso/efiboot/loader/loader.conf
+++ /dev/null
@@ -1,3 +0,0 @@
-timeout 15
-default 01-archiso-x86_64-linux.conf
-beep on
diff --git a/archiso/grub/grub.cfg b/archiso/grub/grub.cfg
index 799f9e9..5b8b8bd 100755
--- a/archiso/grub/grub.cfg
+++ b/archiso/grub/grub.cfg
@@ -14,6 +14,7 @@ if loadfont "${prefix}/fonts/unicode.pf2" ; then
     set gfxmode="auto"
     terminal_input console
     terminal_output console
+    set background_image="/boot/grub/background.png
 fi
 
 # Enable serial console
@@ -44,7 +45,7 @@ else
 fi
 
 # Set default menu entry
-default=alci
+default=BBTTMS
 timeout=15
 timeout_style=menu
 
diff --git a/archiso/profiledef.sh b/archiso/profiledef.sh
index 71ed5ee..4e276f0 100755
--- a/archiso/profiledef.sh
+++ b/archiso/profiledef.sh
@@ -2,15 +2,13 @@
 # shellcheck disable=SC2034
 
 iso_name="BBTTMS"
-iso_label="BBTTMS_$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y%m)"
+iso_label="BBTTMS-$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y%m)"
 iso_publisher="BBTTMS <https://yuyujing.cn>"
 iso_application="BBTTMS Arch Linux Live/Rescue/Install DVD"
-iso_version="TMS_PKG_$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y.%m.%d)"
+iso_version="$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y.%m.%d)"
 install_dir="BBTTMS"
 buildmodes=('iso')
-bootmodes=('bios.syslinux.mbr' 'bios.syslinux.eltorito'
-           'uefi-ia32.systemd-boot.esp' 'uefi-x64.systemd-boot.esp'
-           'uefi-ia32.systemd-boot.eltorito' 'uefi-x64.systemd-boot.eltorito')
+bootmodes=('bios.syslinux' 'uefi.grub')
 arch="x86_64"
 pacman_conf="pacman.conf"
 airootfs_image_type="squashfs"