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#!/usr/bin/env bash
jailisomnt () {
mount -o bind packages "$jailsynctarget"/var/cache/packages
mount -t proc proc "$jailsynctarget"/proc
mount -t sysfs sysfs "$jailsynctarget"/sys
mount -t devtmpfs -o relatime,size=3055348k,nr_inodes=763837,mode=755 none "$jailsynctarget"/dev
mount -t devpts -o nosuid,noexec,relatime,gid=5,mode=620 none "$jailsynctarget"/dev/pts
mount -t tmpfs -o nosuid,nodev none "$jailsynctarget"/dev/shm
mount -t tmpfs -o nosuid,nodev,noexec none "$jailsynctarget"/tmp
}
jailisodmnt () {
umount -l "$jailsynctarget"/proc > /dev/null 2>&1
umount -l "$jailsynctarget"/sys > /dev/null 2>&1
umount -l "$jailsynctarget"/dev/pts > /dev/null 2>&1
umount -l "$jailsynctarget"/dev/shm > /dev/null 2>&1
umount -l "$jailsynctarget"/dev > /dev/null 2>&1
umount -l "$jailsynctarget"/tmp > /dev/null 2>&1
umount -l "$jailsynctarget"/var/cache/packages > /dev/null 2>&1
}
jailisobinmode () {
chroot "$jailsynctarget" su - "$jailuser" -c "$jailbinmodecmd"
}
jailisomkramfs () {
chroot "$jailsynctarget" su - "$jailuser" -c "$jaildracutcmd"
}
jailisomkefi () {
chroot "$jailsynctarget" su - "$jailuser" -c "$jailmkx64eficmd"
chroot "$jailsynctarget" su - "$jailuser" -c "$jailmkia32eficmd"
}
jailisomkchload () {
chroot "$jailsynctarget" su - "$jailuser" -c "$jailmkchainloadercmd"
}
jailisoenserv () {
chroot "$jailsynctarget" su - "$jailuser" -c "rc-update add redcorelive boot"
for service in acpid alsasound avahi-daemon bluetooth cronie cupsd ModemManager NetworkManager ntpd openrc-settingsd samba syslog-ng ufw xdm ; do
chroot "$jailsynctarget" su - "$jailuser" -c "rc-update add "$service" default"
done
}
jailisomkmandb() {
chroot "$jailsynctarget" su - "$jailuser" -c "$jailmandbcmd"
}
jailisomkdkms () {
chroot "$jailsynctarget" su - "$jailuser" -c "$jaildkmscmd"
}
jailisostart () {
einfo "Oh no, I'm in jail!"
chroot "$jailsynctarget" su - "$jailuser"
}
mkliveimg () {
# create live filesystem image layout
mkdir -p "$jailsynctarget"
dd if=/dev/zero of=""$jailsynctarget".img" bs=1M count=15360
sync
mkfs.ext2 -F ""$jailsynctarget".img"
mkdir -p "$jailsyncsource"
mkdir -p "$jaildvdpath"
mkdir -p "$jailsquashfspath"
mkdir -p "$jailrealfspath"
mkdir -p "$jailbootldrpath"
mkdir -p "$jailefildrpath"
sync
# mount "stage4" image and sync live filesystem image core components
mount -t squashfs "$jailx64" "$jailsyncsource"
mount -t ext4 ""$jailsynctarget".img" "$jailsynctarget"
rsync -aHAXr --progress "$jailsyncsource/" "$jailsynctarget/"
sync
# umount "stage4" image
umount "$jailsyncsource"
# copy live kernel image
cp -avx ""$jailsynctarget"/boot/"$jailkernname"" ""$jailrootpath"/boot/vmlinuz"
# create and copy live initramfs
jailisomnt
jailisomkramfs
jailisodmnt
mv ""$jailsynctarget"/boot/"$jailramfsname"" ""$jailrootpath"/boot/initrd"
sync
# create and copy EFI loader
jailisomnt
jailisomkefi
jailisodmnt
mv ""$jailsynctarget"/root/bootx64.efi" "$jailefildrpath"
mv ""$jailsynctarget"/root/bootia32.efi" "$jailefildrpath"
chmod 755 ""$jailefildrpath"/bootx64.efi"
chmod 755 ""$jailefildrpath"/bootia32.efi"
sync
# create and copy syslinux -> grub chainloader for Unetbootin compatibility
jailisomnt
jailisomkchload
jailisodmnt
mv ""$jailsynctarget"/root/core.img" "$jailbootldrpath"
cp -avx ""$jailsynctarget"/usr/lib64/grub/i386-pc/lnxboot.img" "$jailbootldrpath"
sync
# chroot into live filesystem image
jailisomnt
jailisobinmode
jailisostart
jailisodmnt
sync
# create mandb dbs (this will significantly reduce live session CPU usage)
jailisomnt
jailisomkmandb
jailisodmnt
sync
# compile and install DKMS modules, if any
jailisomnt
jailisomkdkms
jailisodmnt
sync
# enable live services
jailisomnt
jailisoenserv
jailisodmnt
sync
# unmount live filesystem image
umount -l "$jailsynctarget" > /dev/null 2>&1
# move live filesystem image where it should be
mv ""$jailsynctarget".img" "$jailrealfspath"
sync
# compress live filesystem image
mksquashfs "$jaildvdpath" ""$jailrootpath"/squashfs.img" -b 1048576 -comp xz -Xdict-size 100%
sync
# move compressed live filesystem image where it should be
mv ""$jailrootpath/"squashfs.img" "$jailsquashfspath"
sync
}
cfgbootldr () {
# fetch and install GRUB2 config files
git clone https://gitlab.com/"$distname"/boot-core.git "$jailbootldrdlpath"
cp -avx "$jailbootldrcfgpath" "$jailrootpath"
sync
}
mkclean () {
# clean temporary resources
rm -rf "$jailsyncsource"
rm -rf "$jailsynctarget"
rm -rf "$jaildvdpath"
rm -rf "$jailbootldrdlpath"
}
mkisoimg () {
# create the actual iso image
grub2-mkrescue -o ""$jailrootpath".iso" "$jailrootpath"
}
makeiso () {
checkifroot
checkjailsum
mkliveimg
cfgbootldr
mkclean
mkisoimg
}
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