diff --git a/build.sh b/build.sh
index 9783829..3672890 100755
--- a/build.sh
+++ b/build.sh
@@ -66,9 +66,10 @@ SIGNED_SHIM='/usr/lib/shim/shimx64.efi.signed'
 # variables ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
 
 MEMDISK_ROOT="${ESP_ROOT}/memdisk"
-MEMDISK_DIRECTORY="${MEMDISK_ROOT}/boot/grub"
+MEMDISK_DIRECTORY="${MEMDISK_ROOT}/grub"
 MEMDISK_FILE="${MEMDISK_DIRECTORY}/grub.cfg"
-MEMDISK_ARCHIVE="${MEMDISK_ROOT}/boot.tar"
+MEMDISK_FONTS="${MEMDISK_DIRECTORY}/fonts"
+MEMDISK_ARCHIVE="${MEMDISK_ROOT}/grub.tar"
 
 UEFI_ROOT="${ESP_ROOT}/efi"
 UEFI_DIRECTORY="${UEFI_ROOT}/boot"
@@ -111,14 +112,14 @@ rm --force --recursive \
 # memdisk ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
 
 echo -n "
-→ ${MEMDISK_DIRECTORY}
+→ ${MEMDISK_FONTS}
 "
-mkdir --parents "${MEMDISK_DIRECTORY}"
+mkdir --parents "${MEMDISK_FONTS}"
 
 echo -n "
 → ${MEMDISK_FILE}
 "
-echo -n "\
+echo "\
 echo \"prefix | \${prefix}\"
 search --no-floppy --set root --fs-uuid '${ESP}'
 prefix=\"(\${root})/boot/grub\"
@@ -131,12 +132,12 @@ echo -n "
 cat "${GRUB_SHIGNED}" >> "${MEMDISK_FILE}"
 
 echo -n "
-↙ ${MEMDISK_ROOT}
+↙ ${MEMDISK_DIRECTORY}
 ↘ ${MEMDISK_ARCHIVE}
 "
-cd "${MEMDISK_ROOT}"
+cd "${MEMDISK_DIRECTORY}"
 tar --create --auto-compress \
---file "${MEMDISK_ARCHIVE}" 'boot'
+--file "${MEMDISK_ARCHIVE}" 'grub.cfg'
 cd -
 
 # uefi ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅
@@ -155,6 +156,7 @@ grub-mkimage \
 --memdisk "${MEMDISK_ARCHIVE}" \
 --format 'x86_64-efi' \
 --output "${UEFI_FILE}" \
+--prefix '(memdisk)/' \
 "${MODULES[@]}"
 if [ -f "${SIGNED_SHIM}" ] ; then
     echo -n "
@@ -203,6 +205,7 @@ grub-mkimage \
 --memdisk "${MEMDISK_ARCHIVE}" \
 --format 'i386-pc' \
 --output "${BIOS_FILE}" \
+--prefix '(memdisk)/' \
 "${MODULES[@]}" "${MODULES_BIOS[@]}"
 
 echo -n "
diff --git a/live/main.sh b/live/main.sh
index a03a63c..2785aed 100644
--- a/live/main.sh
+++ b/live/main.sh
@@ -8,9 +8,10 @@ menuentry '↑ env →' { menu 'env' }
 menuentry '↑ set →' { menu 'set' }
 menuentry '↑ cmd →' { menu 'cmd' }
 menu_split
+menuentry 'check_squashfs = enforce' { check_squashfs='enforce' }
+menuentry 'check_squashfs = no' { check_squashfs='no' }
+menu_split
 menuentry 'bash / stable / tui' { debsquash '/boot/bash/stable/tui' }
 menuentry 'bash / stable / gui' { debsquash '/boot/bash/stable/gui' }
 menuentry 'bash / latest / tui' { debsquash '/boot/bash/latest/tui' }
-menuentry 'check_signatures = enforce' { check_signatures='enforce' }
-menuentry 'check_signatures = no' { check_signatures='no' }
 menuentry 'bash / latest / gui' { debsquash '/boot/bash/latest/gui' }
diff --git a/live/menu/set.sh b/live/menu/set.sh
index b1fcb10..0fc6696 100644
--- a/live/menu/set.sh
+++ b/live/menu/set.sh
@@ -11,3 +11,5 @@ menu_split 'split'
 menuentry "esp: ${esp} → data: ${data}" { nop }
 menuentry "env: ${env} → env_mod: ${env_mod}" { nop }
 menuentry "live: ${live}" { nop }
+menu_split
+menuentry "check_squashfs: ${check_squashfs}" { nop }
diff --git a/live/source/boot.sh b/live/source/boot.sh
index 49ca5df..0a78ded 100644
--- a/live/source/boot.sh
+++ b/live/source/boot.sh
@@ -1,24 +1,29 @@
 function debsquash {
     lmp="${1}"
     sfs="filesystem.squashfs"
-    chk="(${data})${lmp}/${sfs}"
     #
-    echo 'verify_detached'
-    echo "${chk}"
-    if verify_detached "${chk}" "${chk}.sig" ; then
-        if [ -f "(${data})${lmp}/vmlinuz" ]; then
-            linux_path="(${data})${lmp}/vmlinuz"
-            initrd_path="(${data})${lmp}/initrd.img"
-        else
-            linux_path="(squash)/vmlinuz"
-            initrd_path="(squash)/initrd.img"
-            loopback "squash" "${lmp}/${sfs}"
+    if [ "${check_squashfs}" == 'enforce' ] ; then
+        chk="(${data})${lmp}/${sfs}"
+        echo 'verify_detached'
+        echo "${chk}"
+        if ! verify_detached "${chk}" "${chk}.sig" ; then
+            grub_pause
+            return 1
         fi
-        #
-        echo
-        echo 'linux'
-        echo "${linux_path}"
-        linux \
+    fi
+    if [ -f "(${data})${lmp}/vmlinuz" ] ; then
+        linux_path="(${data})${lmp}/vmlinuz"
+        initrd_path="(${data})${lmp}/initrd.img"
+    else
+        linux_path="(squash)/vmlinuz"
+        initrd_path="(squash)/initrd.img"
+        loopback "squash" "${lmp}/${sfs}"
+    fi
+    #
+    echo
+    echo 'linux'
+    echo "${linux_path}"
+    linux \
 "${linux_path}" \
 boot="live" \
 elevator="deadline" \
@@ -26,10 +31,9 @@ ip="frommedia" \
 live-media-path="${lmp}" \
 live-media-uuid="${data_uuid}" \
 toram="${sfs}"
-        #
-        echo
-        echo 'initrd'
-        echo "${initrd_path}"
-        initrd "${initrd_path}"
-    fi
+    #
+    echo
+    echo 'initrd'
+    echo "${initrd_path}"
+    initrd "${initrd_path}"
 }
diff --git a/live/source/env.sh b/live/source/env.sh
index 5e776c4..edc7e01 100644
--- a/live/source/env.sh
+++ b/live/source/env.sh
@@ -1,7 +1,7 @@
 function env {
 action="${1}"
     setparams \
-    'time_out'
+    'check_squashfs' 'time_out'
     if [ "${action}" == 'load' ] ; then
         load_env \
         --skip-sig \
@@ -48,5 +48,6 @@ function env_mod {
 }
 
 function env_set {
+    check_squashfs='enforce'
     time_out=10
 }
diff --git a/readme.md b/readme.md
index fa3bc48..0ca2f40 100644
--- a/readme.md
+++ b/readme.md
@@ -58,22 +58,82 @@ Build an ESP File System including:
 
 ## Tasks
 
-* bash
-  * mimic grubx64.efi.signed
-    * efi
-    * bios
-  * auto setup bios device
-  * --prefix '(memdisk)'
-* live
-  * check squashfs option
-* python
+- [x] comply with secure boot
+- [x] choose to check squashfs or not
+
+- [ ] bash
+  - [ ] mimic grubx64.efi.signed ←
+    - [ ] efi
+      - [ ] include fonts/unicode
+    - [ ] bios
+  - [ ] find & setup bios device
+
+- [ ] rewrite in python
 
 ![Graph](todo.svg)
 
 ### Later
 
-* arm
-* keyboard layouts
-* custom fonts
-* live-media
-  * -mount-opts
+- [ ] target arm
+- [ ] make keyboard layouts
+- [ ] make custom fonts
+- [ ] target specific live-media
+  - [ ] -mount-opts?
+
+```
+/esp
+├── bios
+│  ├── boot.img
+│  ├── core.img
+│  └── setup.sh
+├── boot
+│  ├── grub
+│  │  ├── fonts
+│  │  │  └── *.pf2
+│  │  ├── grub.cfg
+│  │  ├── grub.pgp
+│  │  ├── grubenv
+│  │  ├── i386-pc
+│  │  │  ├── *.lst
+│  │  │  └── *.mod
+│  │  ├── locale
+│  │  │  └── *.mo
+│  │  ├── themes
+│  │  │  ├── breeze
+│  │  │  │  ├── theme.txt
+│  │  │  │  ├── *.pf2
+│  │  │  │  ├── *.pf2.license
+│  │  │  │  ├── *.png
+│  │  │  │  └── *.png.license
+│  │  │  └── starfield
+│  │  │     ├── README
+│  │  │     ├── theme.txt
+│  │  │     ├── *.pf2
+│  │  │     ├── *.pf2.license
+│  │  │     ├── *.png
+│  │  │     └── *.png.license
+│  │  └── x86_64-efi
+│  │     ├── *.lst
+│  │     └── *.mod
+│  └── lsgm
+│     ├── main.sh
+│     ├── menu
+│     │  ├── cmd.sh
+│     │  ├── env.sh
+│     │  ├── gfx.sh
+│     │  ├── scan.sh
+│     │  └── set.sh
+│     └── source
+│        ├── boot.sh
+│        ├── env.sh
+│        ├── menu.sh
+│        ├── probe.sh
+│        ├── scan.sh
+│        └── util.sh
+├── efi
+│  └── boot
+│     ├── bootx64.efi
+│     ├── core.efi
+│     └── grubx64.efi
+└── grub.env
+```