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#!/usr/bin/env bash
# Vasile needs root privileges and a proper kernel to run
kernelconfig
checkroot
prepareisox64 () {
# we really need this folder as quick as possible
mkdir -p "$isosyncdirx64"
# create an empty 20GB ext4 fs were our rootfs will stay
dd if=/dev/zero of=""$isosyncdirx64".img" bs=50M count=400
mkfs.ext4 ""$isosyncdirx64".img"
# create live iso layout
mkdir -p "$isostagingdirx64"
mkdir -p "$isobootdirx64"
mkdir -p "$isoefibootdirx64"
mkdir -p "$isoliveosdirx64"
mkdir -p "$isosupersquashdirx64"
mkdir -p "$isolivesqfsdirx64"
# mount && copy core stage 4 image
mount -t squashfs "$chrootx64" "$isostagingdirx64"
mount -t ext4 ""$isosyncdirx64".img" "$isosyncdirx64"
rsync -aHAXr --progress "$isostagingdirx64/" "$isosyncdirx64/"
# copy kernel into cdroot
cp -avx ""$isosyncdirx64"/boot/"$isokernelnamex64"" ""$isorootdirx64"/boot/vmlinuz"
# generate live initramfs
isostartx64
isoramfsx64
isostopx64
# copy live initramfs into cdroot
mv ""$isosyncdirx64"/boot/"$isoramfsname"" ""$isorootdirx64"/boot/initrd"
# generate live efi image
isostartx64
isoefiimgx64
isostopx64
# copy efi image into cdroot
mv ""$isosyncdirx64"/root/bootx64.efi" "$isoefibootdirx64"
chmod 755 ""$isoefibootdirx64"/bootx64.efi"
# configure portage && give up control for package / desktop environment installation
isostartx64
isooverlaysx64
isobuildsystemx64
isochrootx64
isostopx64
# unmount rootfs before compression
umount -l "$isosyncdirx64" > /dev/null 2>&1
# move rootfs in place
mv ""$isosyncdirx64".img" "$isolivesqfsdirx64"
# squash rootfs with best compression
mksquashfs "$isosupersquashdirx64" ""$isorootdirx64"/squashfs.img" -b 1048576 -comp xz -Xdict-size 100%
# move squashed rootfs in place
mv ""$isorootdirx64/"squashfs.img" "$isoliveosdirx64"
}
bootcoreisox64 () {
# configure live bootloader
git clone https://gitlab.com/rogentos/boot-core.git "$bootcorepath"
cp -avx "$bootcorefiles" "$isorootdirx64"
}
cleanupisox64 () {
umount "$isostagingdirx64"
rm -rf "$isosyncdirx64"
rm -rf "$isostagingdirx64"
rm -rf "$isosupersquashdirx64"
rm -rf "$bootcorepath"
}
makeisox64 () {
grub2-mkrescue -o ""$releasename"-"$releasetarget"-"$releaseversion"-"$isomainarchx64".iso" "$isorootdirx64"
}
main () {
chrootchecksumx64
prepareisox64
bootcoreisox64
cleanupisox64
makeisox64
}
main
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