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#!/bin/sh -e
msg() { echo "-> $@"; }
cleanup() { rm -rf $WORKDIR; }
prepare_rootfs() {
[ -d $ROOTFS ] && return
basepkg="baselayout autils binutils bison busybox
bzip2 ca-certificates curl file flex gcc
git gmp initscripts linux-headers m4 make
mpc mpfr musl openssl patch spm xz zlib"
requiredpkg="linux grub syslinux efibootmgr"
extrapkg="pfetch sway swaybg swayidle swaylock wmenu mpv
foot firefox fff ranger dejavu-fonts-ttf wpa_supplicant dhcpcd
imv lm-sensors opendoas zstd rsync squashfs-tools"
mkdir -p $ROOTFS/var/lib/spm/db
APKG_NOPROMPT=1 APKG_ROOT=$ROOTFS apkg -I $basepkg $requiredpkg $extrapkg
}
squashfs_rootfs() {
[ -f $ISODIR/boot/rootfs.sfs ] && return
mkdir -p $ISODIR/boot
msg "squashing rootfs..."
mksquashfs \
$ROOTFS \
$ISODIR/boot/rootfs.sfs \
-b 1048576 \
-comp xz \
-wildcards \
-e tmp/* -e root/* -e sys/* -e dev/* -e proc/* -e run/*
}
add_kmod() {
[ -f $INITRAMFSDIR/$KERNEL_MODULES_DIR/$1 ] && continue
mkdir -p $INITRAMFSDIR/$KERNEL_MODULES_DIR/${1%/*}
cp $ROOTFS/$KERNEL_MODULES_DIR/$1 $INITRAMFSDIR/$KERNEL_MODULES_DIR/${1%/*}
for d in $(grep $1: $ROOTFS/$KERNEL_MODULES_DIR/modules.dep | tr ' ' '\n' | tail -n+2); do
add_kmod $d
done
}
make_initramfs() {
[ -f $ISODIR/boot/initrd ] && return
mkdir -p $INITRAMFSDIR/bin
cp $MKISOD/init $INITRAMFSDIR
chmod +x $INITRAMFSDIR/init
cp /bin/busybox $INITRAMFSDIR/bin
KERNEL_VER=$(file $ROOTFS/boot/vmlinuz-linux | awk '{print $9}')
KERNEL_MODULES_DIR=lib/modules/$KERNEL_VER
msg "copying kernel modules..."
( cd $ROOTFS/$KERNEL_MODULES_DIR
for rk in $required_kmods; do
[ -d kernel/$rk ] || continue
for f in $(find kernel/$rk -type f); do
add_kmod $f
done
done
)
for i in order builtin builtin.modinfo; do
cp $ROOTFS/$KERNEL_MODULES_DIR/modules.$i $INITRAMFSDIR/lib/modules/$KERNEL_VER/
done
depmod -b $INITRAMFSDIR $KERNEL_VER
msg "generating live initrd..."
( cd $INITRAMFSDIR ; find . | cpio -o -H newc | gzip -9 ) > $ISODIR/boot/initrd
}
prepare_grub() {
[ -f $ISODIR/boot/efiboot.img ] && return
msg "preparing grub boot files..."
mkdir -p $ISODIR/boot/grub/x86_64-efi $ISODIR/boot/grub/fonts
echo "set prefix=/boot/grub" > $ISODIR/boot/grub-early.cfg
cp -a $ROOTFS/usr/lib/grub/x86_64-efi/*.mod $ISODIR/boot/grub/x86_64-efi
cp -a $ROOTFS/usr/lib/grub/x86_64-efi/*.lst $ISODIR/boot/grub/x86_64-efi
cp $ROOTFS/usr/share/grub/unicode.pf2 $ISODIR/boot/grub/fonts/unicode.pf2
# UEFI
rm -f $ISODIR/boot/efiboot.img
mkdir -p $ISODIR/efi/boot
grub-mkimage -c $ISODIR/boot/grub-early.cfg -o $ISODIR/efi/boot/bootx64.efi -O x86_64-efi -p "" iso9660 normal search search_fs_file
modprobe loop
dd if=/dev/zero of=$ISODIR/boot/efiboot.img count=4096
mkdosfs -n LIVE-UEFI $ISODIR/boot/efiboot.img
mkdir -p $ISODIR/boot/efiboot
mount -o loop $ISODIR/boot/efiboot.img $ISODIR/boot/efiboot
mkdir -p $ISODIR/boot/efiboot/EFI/boot
cp $ISODIR/efi/boot/bootx64.efi $ISODIR/boot/efiboot/EFI/boot
umount $ISODIR/boot/efiboot
rm -fr $ISODIR/boot/efiboot
}
prepare_syslinux() {
[ -f $ISODIR/isolinux/isolinux.bin ] && return
msg "preparing syslinux boot files..."
mkdir -p $ISODIR/isolinux
cp $ROOTFS/usr/share/syslinux/ldlinux.c32 $ISODIR/isolinux
cp $ROOTFS/usr/share/syslinux/isolinux.bin $ISODIR/isolinux
}
make_iso() {
cp $ROOTFS/boot/vmlinuz-linux $ISODIR/boot/vmlinuz
[ -f $MKISOD/live_script.sh ] && cp $MKISOD/live_script.sh $ISODIR/boot
touch $ISODIR/boot/livemedia
if [ -d $MKISOD/include ]; then
echo "include rootfs files..."
(
cd $MKISOD/include
chown -R 0:0 *
tar -czf $ISODIR/boot/rootfs.gz *
)
fi
cat << EOF > $ISODIR/isolinux/isolinux.cfg
#UI /isolinux/menu.c32
DEFAULT silent
TIMEOUT 0
LABEL silent
LINUX /boot/vmlinuz
APPEND initrd=/boot/initrd
EOF
cat << EOF > $ISODIR/boot/grub/grub.cfg
set default=0
set timeout=3
set timeout_style=hidden
menuentry 'Alice Linux' {
linux /boot/vmlinuz
initrd /boot/initrd
}
EOF
msg "generating iso..."
rm -f $OUTPUT
xorriso -as mkisofs \
-isohybrid-mbr $ROOTFS/usr/share/syslinux/isohdpfx.bin \
-c isolinux/boot.cat \
-b isolinux/isolinux.bin \
-no-emul-boot \
-boot-load-size 4 \
-boot-info-table \
-eltorito-alt-boot \
-e boot/efiboot.img \
-no-emul-boot \
-isohybrid-gpt-basdat \
-volid ALICE \
-o $OUTPUT $ISODIR
sha256sum $OUTPUT > $ISOSUM
}
WORKDIR=/tmp/alice-iso
ROOTFS=$WORKDIR/rootfs
ISODIR=$WORKDIR/liveiso
INITRAMFSDIR=$WORKDIR/initramfs
MKISOD=$PWD/mkiso.d
OUTPUT=$PWD/alicelinux-$(date +%Y%m%d).iso
ISOSUM=$OUTPUT.sha256sum
required_kmods="crypto
fs lib
drivers/block
drivers/md
drivers/ata
drivers/firewire
drivers/input/keyboard
drivers/input/mouse
drivers/scsi
drivers/message
drivers/pcmcia
drivers/virtio
drivers/usb/host
drivers/usb/storage
drivers/hid
drivers/cdrom"
cleanup
prepare_rootfs
squashfs_rootfs
make_initramfs
prepare_grub
prepare_syslinux
make_iso
cleanup
msg "making iso done"
exit 0
|
