first steps

2024-06-02 21:56:05 +02:00 · 2024-06-02 21:56:05 +02:00 · 2f09fa927b
commit 2f09fa927b
parent 97cf8ef0a1
3 changed files with 209 additions and 1 deletions
--- a/.gitignore
+++ b/.gitignore
@ -13,3 +13,4 @@
 # .nfs files are created when an open file is removed but is still being accessed
 .nfs*

+*.iso
--- a/README.md
+++ b/README.md
@ -1,3 +1,32 @@
 # reHDD-Bootable

-Scripts and tools to create a bootable image with reHDD based on debian. 
+Scripts and tools to create a bootable image with reHDD based on debian. 
+
+## Requirements
+
+The scripts are used to run within a Debian-based machine as host. 
+Use a host os that is installed/started in UEFI mode.
+
+```
+apt-get install \
+    debootstrap \
+    squashfs-tools \
+    xorriso \
+    isolinux \
+    syslinux-efi \
+    grub-pc-bin \
+    grub-efi-amd64-bin \
+    grub-efi-ia32-bin \
+    mtools \
+    dosfstools \
+    screenfetch \
+    htop \
+    git \
+    curl 
+
+```
+
+
+## Test 
+
+`qemu-system-x86_64 -boot d -cdrom reHDD_Bootable.iso -m 1024 -smp 2`
--- a/create_bootable.sh
+++ b/create_bootable.sh
@ -0,0 +1,178 @@
+
+ROOT_PASSWORD="rehdd"
+
+
+# Create a working directory 
+mkdir -p "${HOME}/LIVE_BOOT"
+
+# Create environment live directories
+mkdir -p "${HOME}/LIVE_BOOT"/{staging/{EFI/BOOT,boot/grub/x86_64-efi,isolinux,live},tmp}
+
+# Download Debian environment
+debootstrap \
+    --arch=amd64 \
+    --variant=minbase \
+    stable \
+    "${HOME}/LIVE_BOOT/chroot" \
+    http://ftp.de.debian.org/debian/
+
+# Set hostname
+echo "reHDD" | sudo tee "${HOME}/LIVE_BOOT/chroot/etc/hostname"
+
+# Install Linux Kernel
+chroot "${HOME}/LIVE_BOOT/chroot" << EOF
+apt-get update && \
+apt-get install -y --no-install-recommends \
+    linux-image-amd64 \
+    live-boot \
+    systemd-sysv
+EOF
+
+# Install packages
+chroot "${HOME}/LIVE_BOOT/chroot" << EOF
+apt-get install -y --no-install-recommends \
+    iwd \
+    curl openssh-client \
+    nano
+EOF
+
+# Set root password
+chroot "${HOME}/LIVE_BOOT/chroot" passwd root
+
+# Compress the chroot environment into a Squash filesystem
+mksquashfs \
+    "${HOME}/LIVE_BOOT/chroot" \
+    "${HOME}/LIVE_BOOT/staging/live/filesystem.squashfs" \
+    -e boot
+
+# Copy the kernel from inside the chroot to the live directory.
+cp "${HOME}/LIVE_BOOT/chroot/boot"/vmlinuz-* \
+    "${HOME}/LIVE_BOOT/staging/live/vmlinuz"
+
+# Copy initramfs from inside the chroot to the live directory.
+cp "${HOME}/LIVE_BOOT/chroot/boot"/initrd.img-* \
+    "${HOME}/LIVE_BOOT/staging/live/initrd"
+
+
+# Create an ISOLINUX (Syslinux) boot menu
+cat <<'EOF' > "${HOME}/LIVE_BOOT/staging/isolinux/isolinux.cfg"
+UI vesamenu.c32
+
+MENU TITLE Boot Menu
+DEFAULT linux
+TIMEOUT 600
+MENU RESOLUTION 640 480
+MENU COLOR border       30;44   #40ffffff #a0000000 std
+MENU COLOR title        1;36;44 #9033ccff #a0000000 std
+MENU COLOR sel          7;37;40 #e0ffffff #20ffffff all
+MENU COLOR unsel        37;44   #50ffffff #a0000000 std
+MENU COLOR help         37;40   #c0ffffff #a0000000 std
+MENU COLOR timeout_msg  37;40   #80ffffff #00000000 std
+MENU COLOR timeout      1;37;40 #c0ffffff #00000000 std
+MENU COLOR msg07        37;40   #90ffffff #a0000000 std
+MENU COLOR tabmsg       31;40   #30ffffff #00000000 std
+
+LABEL linux
+  MENU LABEL reHDD [BIOS]
+  MENU DEFAULT
+  KERNEL /live/vmlinuz
+  APPEND initrd=/live/initrd boot=live
+EOF
+
+# Create an EFI/UEFI boot menu
+cat <<'EOF' > "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg"
+insmod part_gpt
+insmod part_msdos
+insmod fat
+insmod iso9660
+
+insmod all_video
+insmod font
+
+set default="0"
+set timeout=30
+
+# If X has issues finding screens, experiment with/without nomodeset.
+
+menuentry "reHDD [UEFI]" {
+    search --no-floppy --set=root --label DEBLIVE
+    linux ($root)/live/vmlinuz boot=live
+    initrd ($root)/live/initrd
+}
+EOF
+
+# Copy the grub.cfg file to the EFI BOOT directory
+cp "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg" "${HOME}/LIVE_BOOT/staging/EFI/BOOT/"
+
+# Create helper GRUB boot config
+cat <<'EOF' > "${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+if ! [ -d "$cmdpath" ]; then
+    # On some firmware, GRUB has a wrong cmdpath when booted from an optical disc.
+    # https://gitlab.archlinux.org/archlinux/archiso/-/issues/183
+    if regexp --set=1:isodevice '^(\([^)]+\))\/?[Ee][Ff][Ii]\/[Bb][Oo][Oo][Tt]\/?$' "$cmdpath"; then
+        cmdpath="${isodevice}/EFI/BOOT"
+    fi
+fi
+configfile "${cmdpath}/grub.cfg"
+EOF
+
+# Copy BIOS/legacy boot required files to live environment
+cp /usr/lib/ISOLINUX/isolinux.bin "${HOME}/LIVE_BOOT/staging/isolinux/" 
+cp /usr/lib/syslinux/modules/bios/* "${HOME}/LIVE_BOOT/staging/isolinux/"
+
+# Copy EFI/modern boot required files to live environment
+cp -r /usr/lib/grub/x86_64-efi/* "${HOME}/LIVE_BOOT/staging/boot/grub/x86_64-efi/"
+
+# Generate an EFI bootable GRUB image.
+grub-mkstandalone -O i386-efi \
+    --modules="part_gpt part_msdos fat iso9660" \
+    --locales="" \
+    --themes="" \
+    --fonts="" \
+    --output="${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTIA32.EFI" \
+    "boot/grub/grub.cfg=${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+
+grub-mkstandalone -O x86_64-efi \
+    --modules="part_gpt part_msdos fat iso9660" \
+    --locales="" \
+    --themes="" \
+    --fonts="" \
+    --output="${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTx64.EFI" \
+    "boot/grub/grub.cfg=${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+
+# Create a FAT16 UEFI boot disk image containing the EFI bootloaders. 
+(cd "${HOME}/LIVE_BOOT/staging" && \
+    dd if=/dev/zero of=efiboot.img bs=1M count=20 && \
+    mkfs.vfat efiboot.img && \
+    mmd -i efiboot.img ::/EFI ::/EFI/BOOT && \
+    mcopy -vi efiboot.img \
+        "${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTIA32.EFI" \
+        "${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTx64.EFI" \
+        "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg" \
+        ::/EFI/BOOT/
+)
+
+# Generate ISO from live environment
+xorriso \
+    -as mkisofs \
+    -iso-level 3 \
+    -o "${HOME}/LIVE_BOOT/debian-custom.iso" \
+    -full-iso9660-filenames \
+    -volid "reHDD" \
+    --mbr-force-bootable -partition_offset 16 \
+    -joliet -joliet-long -rational-rock \
+    -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
+    -eltorito-boot \
+        isolinux/isolinux.bin \
+        -no-emul-boot \
+        -boot-load-size 4 \
+        -boot-info-table \
+        --eltorito-catalog isolinux/isolinux.cat \
+    -eltorito-alt-boot \
+        -e --interval:appended_partition_2:all:: \
+        -no-emul-boot \
+        -isohybrid-gpt-basdat \
+    -append_partition 2 C12A7328-F81F-11D2-BA4B-00A0C93EC93B ${HOME}/LIVE_BOOT/staging/efiboot.img \
+    "${HOME}/LIVE_BOOT/staging"
+
+cp "${HOME}/LIVE_BOOT/debian-custom.iso" reHDD_Bootable.iso