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#!/bin/bash
# Copyright (C) 2016-2018 Iru Cai <mytbk920423@gmail.com>
# SPDX-License-Identifier: GPL-3.0-or-later
set -e
DISTROLIST=()
ISOLIST=()
BOOTPATH=
ROOTPATH=
DEVNAME=
KERNELDIR=
DATADIR=
INSTALL_GRUB=1
GRUBCFG_ONLY=0
DOWNLOAD_ONLY=0
UMOUNT_BOOT=0
UMOUNT_ROOT=0
CLEAN_USB=0
. functions.sh
msg() {
echo -e "$1" >&2
}
fatalerror() {
msg "\x1b[1;31m$1\x1b[0m"
exit 1
}
usage() {
>&2 cat << EOF
$0 [--root <path>] [options] [distro 1] [distro 2] ...
use $0 -L to list available distros
options:
--root <path>
--root=<path>: set the path to put the live USB data files
--boot <path>
--boot=<path>: set the path to put the kernel and loader files
--clean: clean the old live USB files before installing
--no-grub: do not install GRUB loader (still generate grub.cfg)
--grubcfg: do not do real install, only generate grub.cfg file
--downloadonly: only download the ISO files
--dev=<diskdev>: write boot sector to <diskdev> (default <diskdev> is autodetected from <rootpath>)
EOF
}
try_mount() {
local mnt
if [[ "$1" =~ ^/dev ]]
then
if ! findmnt "$1" > /dev/null
then
udevil mount "$1" > /dev/null
mnt=$(findmnt -n -o TARGET "$1")
else
mnt=$(findmnt -n -o TARGET "$1")
fi
else
mnt="$1"
fi
echo "$mnt"
}
unset ISOPATH
CFGFILE="$HOME/.liveusb-builder"
test -f "$CFGFILE" && source "$CFGFILE" || true
ISOPATH=${ISOPATH:-"$HOME/isofiles"}
while [[ -n "$1" ]]
do
case "$1" in
-L)
exec ./listisos.sh
;;
--boot=*)
BOOTPATH="${1/--boot=}"
;;
--boot)
shift
BOOTPATH="$1"
;;
--root=*)
ROOTPATH="${1/--root=}"
;;
--root)
shift
ROOTPATH="$1"
;;
--dev=*)
DEVNAME=${1/--dev=}
;;
--no-grub)
INSTALL_GRUB=0
;;
--grubcfg)
GRUBCFG_ONLY=1
;;
--downloadonly)
DOWNLOAD_ONLY=1
;;
--clean)
CLEAN_USB=1
;;
*=*|-*)
usage
exit 1
;;
*)
if [ -f "distro/$1/isoinfo" ]
then
DISTROLIST=(${DISTROLIST[@]} "$1")
else
fatalerror "directory distro/$1/isoinfo not found"
fi
;;
esac
shift
done
if [[ -z "$ROOTPATH" && "$DOWNLOAD_ONLY" == 0 ]]; then
usage
exit 1
fi
_mnt="$(try_mount "$ROOTPATH")"
if [ "${_mnt}" != "$ROOTPATH" ]; then
ROOTPATH="${_mnt}"
UMOUNT_ROOT=1
fi
if [[ -z "$BOOTPATH" ]]; then
BOOTPATH="$ROOTPATH"
else
_mnt="$(try_mount "$BOOTPATH")"
if [ "${_mnt}" != "$BOOTPATH" ]; then
BOOTPATH="${_mnt}"
UMOUNT_BOOT=1
fi
fi
if [[ "$DOWNLOAD_ONLY" == 0 ]]; then
UUID="$(findmnt -o UUID --raw --noheadings $ROOTPATH \
|| fatalerror "UUID of $ROOTPATH not found, not a mountpoint?")"
BOOTPART="$(findmnt -o SOURCE --raw --noheadings $BOOTPATH \
|| fatalerror "$BOOTPATH seems not a mountpoint!")"
# liveusb kernel and data should be placed on one disk
# so get DEVNAME by the mountpoint of ROOTPATH is ok
DEVNAME="/dev/$(getdiskbypart "/dev/disk/by-uuid/$UUID")"
KERNELDIR="$BOOTPATH/liveusb-kernel"
DATADIR="$ROOTPATH/liveusb-data"
GRUBCFG="$BOOTPATH/grub/grub.cfg"
SYSLINUXCFG="$BOOTPATH/syslinux/syslinux.cfg"
install -d "$BOOTPATH/grub" "$BOOTPATH/syslinux"
install -d "$KERNELDIR" "$DATADIR"
msg "Files will be copy to $ROOTPATH"
fi
if [[ "${#DISTROLIST[@]}" == 0 ]]; then
usage
exit 1
fi
if [ ! -z "$DEVNAME" ]; then
msg "Boot sector will be written to $DEVNAME"
fi
if [[ "$CLEAN_USB" = 1 ]]; then
msg "Cleaning old live USB files."
rm -rf "$KERNELDIR"/* "$DATADIR"/*
fi
for i in ${DISTROLIST[@]}
do
process_isoinfo "$i"
ISOLIST=("${ISOLIST[@]}" "$ISOFILE")
ISONAMELIST=("${ISONAMELIST[@]}" "$ISONAME")
if [ -f "$ISOPATH/$ISOFILE" ] && checksum_verify; then
true
else
download_iso
fi
done
if [[ "$DOWNLOAD_ONLY" == 1 ]]; then
exit 0
fi
grubcfg_header > "$GRUBCFG"
syslinux_header > "$SYSLINUXCFG"
for i in `seq 1 ${#DISTROLIST[@]}`
do
ISOFILE="${ISOLIST[$i-1]}"
ISONAME="${ISONAMELIST[$i-1]}"
DISTRO="${DISTROLIST[$i-1]}"
ISO_FILEPATH="$ISOPATH/$ISOFILE"
set_distro "$DISTRO"
export DISTRONAME KEYWORD # for grub and syslinux generation
process_distro "$DISTRO"
if [ "$GRUBCFG_ONLY" == 0 ]; then
install_live
fi
gen_grubcfg "$DISTRO" >> "$GRUBCFG"
gen_syslinux "$DISTRO" >> "$SYSLINUXCFG"
done
if [ "$GRUBCFG_ONLY" == 1 ]; then
msg 'Only generate grub.cfg and syslinux.cfg, will not install bootloader.'
elif [ "$INSTALL_GRUB" == 1 ]; then
read -p 'Answer Y to install bootloader.[Y/n] '
if [[ "$REPLY" =~ ^[Yy]|^$ ]]; then
if ! as-root ./install_syslinux "$DEVNAME" "$BOOTPART" "$BOOTPATH"; then
msg 'Failed to install syslinux, try to install GRUB as legacy BIOS bootloader.'
as-root grub-install --force --boot-directory="$BOOTPATH" --target=i386-pc "$DEVNAME"
fi
as-root grub-install --boot-directory="$BOOTPATH" --efi-directory="$BOOTPATH" --bootloader-id=grub --target=x86_64-efi --removable --no-nvram "$DEVNAME"
fi
fi
if [ "$UMOUNT_BOOT" == 1 ]; then
msg 'Trying to umount the boot mountpoint, you may need to wait for sync() to complete.'
udevil umount "$BOOTPATH"
fi
if [ "$UMOUNT_ROOT" == 1 -a "$ROOTPATH" != "$BOOTPATH" ]; then
msg 'Trying to umount the root mountpoint, you may need to wait for sync() to complete.'
udevil umount "$ROOTPATH"
fi
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