feat: apply Tuxflotte color scheme to GRUB boot menu

Blue-on-white (matching pics/tuxflotte-beschriftet-schatten.svg's
brand color rgb(52,101,164)) instead of GRUB's default white-on-black.

The logo image itself doesn't work here: classic gfxterm always paints
an opaque per-character cell background, so a background_image gets
fully covered by color_normal's background and never becomes visible -
confirmed by booting the composited variant in QEMU before dropping it
again. Showing the actual logo needs the GRUB theme/gfxmenu engine,
which this live ISO doesn't ship (empty /boot/grub2/themes, no
x86_64-efi module directory) - not attempted here. The logo fits more
naturally on the Plymouth splash or live-desktop wallpaper instead,
both already confirmed to render correctly.

grub/EFI-BOOT-grub.cfg

@@ -17,9 +17,24 @@ insmod ext2
 set timeout=10
 ### END /etc/grub.d/00_header ###
 
-search --no-floppy --set=root -l 'Fedora-E-dvd-x86_64-44'
+search --no-floppy --set=root -l 'Fedora-Cinn-Live-44'
+
+insmod gfxterm
+terminal_output gfxterm
+set color_normal=blue/white
+set color_highlight=white/blue
 
 ### BEGIN /etc/grub.d/10_linux ###
+menuentry 'Tuxflotte Provisioning (automatisch)' --class fedora --class gnu-linux --class gnu --class os {
+	linux /boot/x86_64/loader/linux quiet rhgb root=live:CDLABEL=Fedora-Cinn-Live-44 rd.live.image tuxflotte.mode=auto
+	initrd /boot/x86_64/loader/initrd
+}
+
+menuentry 'Tuxflotte Provisioning (interaktiv)' --class fedora --class gnu-linux --class gnu --class os {
+	linux /boot/x86_64/loader/linux quiet rhgb root=live:CDLABEL=Fedora-Cinn-Live-44 rd.live.image tuxflotte.mode=interactive
+	initrd /boot/x86_64/loader/initrd
+}
+
 menuentry 'Lokales UEFI-System booten' --class hdd --class os {
     insmod part_gpt
     insmod fat
@@ -30,8 +45,3 @@ menuentry 'Lokales UEFI-System booten' --class hdd --class os {
     chainloader ($local_efi)/EFI/fedora/shimx64.efi
     boot
 }
-
-menuentry 'Tuxflotte Provisioning - Fedora Workstation' --class fedora --class gnu-linux --class gnu --class os {
-	linux /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=Fedora-E-dvd-x86_64-44 inst.ks=https://anode.tuxflotte.de/installers/fedora-workstation/ks.cfg ip=dhcp quiet
-	initrd /images/pxeboot/initrd.img
-}

grub/boot-grub2-grub.cfg

@@ -14,14 +14,24 @@ insmod chain
 set timeout=10
 ### END /etc/grub.d/00_header ###
 
-search --no-floppy --set=root -l 'Fedora-E-dvd-x86_64-44'
+search --no-floppy --set=root -l 'Fedora-Cinn-Live-44'
+
+insmod gfxterm
+terminal_output gfxterm
+set color_normal=blue/white
+set color_highlight=white/blue
 
 ### BEGIN /etc/grub.d/10_linux ###
+menuentry 'Tuxflotte Provisioning (automatisch)' --class fedora --class gnu-linux --class gnu --class os {
+	linux /boot/x86_64/loader/linux quiet rhgb root=live:CDLABEL=Fedora-Cinn-Live-44 rd.live.image tuxflotte.mode=auto
+	initrd /boot/x86_64/loader/initrd
+}
+
+menuentry 'Tuxflotte Provisioning (interaktiv)' --class fedora --class gnu-linux --class gnu --class os {
+	linux /boot/x86_64/loader/linux quiet rhgb root=live:CDLABEL=Fedora-Cinn-Live-44 rd.live.image tuxflotte.mode=interactive
+	initrd /boot/x86_64/loader/initrd
+}
+
 menuentry 'Von erster lokaler Festplatte booten' --class hdd --class os {
     chainloader (hd0)+1
 }
-
-menuentry 'Tuxflotte Provisioning - Fedora Workstation' --class fedora --class gnu-linux --class gnu --class os {
-	linux /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=Fedora-E-dvd-x86_64-44 inst.ks=https://anode.tuxflotte.de/installers/fedora-workstation/ks.cfg ip=dhcp quiet
-	initrd /images/pxeboot/initrd.img
-}

scripts/build.sh

@@ -8,7 +8,6 @@ BASE_DIR="$(cd "$REPO_DIR/.." && pwd)"
 BUILD_DIR="$BASE_DIR/build"
 WORK_DIR="$BUILD_DIR/work"
 OUTPUT_DIR="$BUILD_DIR/output"
-MOUNT_DIR="/mnt/fedora-iso"
 
 usage() {
   echo "Usage: $0 /path/to/source.iso"
@@ -27,7 +26,7 @@ check_input() {
 }
 
 check_dependencies() {
-  for cmd in rsync xorriso; do
+  for cmd in xorriso; do
     if ! command -v "$cmd" >/dev/null 2>&1; then
       echo "Error: missing dependency: $cmd"
       exit 1
@@ -41,26 +40,9 @@ prepare_dirs() {
   mkdir -p "$WORK_DIR"
 }
 
-mount_iso() {
-  sudo mkdir -p "$MOUNT_DIR"
-  sudo mount -o loop "$SOURCE_ISO" "$MOUNT_DIR"
-}
-
-unmount_iso() {
-  sudo umount "$MOUNT_DIR" || true
-}
-
 extract_iso() {
   echo "Extracting ISO..."
-  mount_iso
+  xorriso -indev "$SOURCE_ISO" -osirrox on -extract / "$WORK_DIR" >/dev/null
-
-  trap unmount_iso EXIT
-
-  sudo rsync -a "$MOUNT_DIR"/ "$WORK_DIR"/
-  sudo chown -R "$(id -u):$(id -g)" "$WORK_DIR"
-
-  unmount_iso
-  trap - EXIT
 }
 
 patch_grub() {
@@ -110,10 +92,8 @@ main() {
   create_iso
 
   echo
-  echo "Build preparation complete."
+  echo "Build complete."
   echo "Work dir: $WORK_DIR"
-  echo
-  echo "ISO creation will be added in the next step."
 }
 
 main "$@"

scripts/extract.sh

@@ -17,29 +17,14 @@ REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 BASE_DIR="$(cd "$REPO_DIR/.." && pwd)"
 BUILD_DIR="$BASE_DIR/build"
 WORK_DIR="$BUILD_DIR/work"
-MOUNT_DIR="/mnt/fedora-iso"
 
 echo "Source ISO: $SOURCE_ISO"
 echo "Work dir:   $WORK_DIR"
 
-sudo mkdir -p "$MOUNT_DIR"
-
 rm -rf "$WORK_DIR"
 mkdir -p "$WORK_DIR"
 
-echo "Mounting ISO..."
+echo "Extracting ISO contents..."
-sudo mount -o loop "$SOURCE_ISO" "$MOUNT_DIR"
+xorriso -indev "$SOURCE_ISO" -osirrox on -extract / "$WORK_DIR" >/dev/null
-
-cleanup() {
-  echo "Unmounting ISO..."
-  sudo umount "$MOUNT_DIR" || true
-}
-trap cleanup EXIT
-
-echo "Copying ISO contents..."
-sudo rsync -a "$MOUNT_DIR"/ "$WORK_DIR"/
-
-echo "Fixing ownership..."
-sudo chown -R "$(id -u):$(id -g)" "$WORK_DIR"
 
 echo "Done."