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multiboot/multiboot.sh
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multiboot.sh
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#!/bin/bash
set -x # show commands
if [ "$#" -le 0 ]; then
echo "Not enough arguments"
echo "Syntax: multiboot /dev/sdX ISO_SOURCE_DIRECTORY"
exit -1
fi
# set the first passed argument as the target device
DEV=$1
# prompt confirmation
read -p "Are you sure you want to format ${DEV}? (Y/N): " -n 1 -r
if [[ ! $REPLY =~ ^[Yy]$ ]]; then
echo
echo "No modification has been applied, exiting"
exit -2
fi
echo
# check for configuration template existance
GLIM=$(pwd)/glim
if [ ! -d "${GLIM}" ]; then
echo "${GLIM} directory is missing, cloning it"
git clone https://github.com/thias/glim.git # clone configuration template repository
gitstatus=#?
if [ ${gitstatus} -ne 0 ]; then
echo "Could not clone glim repository, check for internet connection"
exit -3
fi
else
echo "${GLIM} directory existing"
# TODO, check for directory integrity
fi
# ask for root, root UID is 0
if [ "$EUID" -ne 0 ]
then echo "Please run this script as root"
exit -4
fi
echo "Proceeding formatting ${DEV}"
# fdisk pre-configuration
sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << EOF | fdisk ${DEV}
o # clear the in memory partition table
g # set a GPT partition table
n # new partition
1 # partition number 1
# default - start at beginning of disk
+2048 # 1 MiB boot parttion
n # new partition
2 # partion number 2
# default, start immediately after preceding partition
+102400 # 50 Mib, EFI partition
n # new partition
3 # partion number 2
# default, start immediately after preceding partition
# default, extend partition to end of disk
t # change the type of a partition
1 # select partition 1
4 # set type of partition 1 as BIOS boot
t # change the type of a partition
2 # select partition 2
1 # set type of partition 2 as EFI
p # print the in-memory partition table
w # write the partition table
q # and we're done
EOF
# gdisk configuration
sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << EOF | gdisk ${DEV}
r # enter recovery mode
h # initialize a Hybrid MBRs
1 2 3 # give partitions
N # Place EFI GPT (0xEE) partition first in MBR (good for GRUB)
EF # Enter an MBR hex code (default EF), partition 1
N # Not bootable, partition 1
EF # Enter an MBR hex code (default EF), partition 2
N # Not bootable, partition 2
83 # Enter an MBR hex code (default 83), partition 3
Y # Bootable, partition 3
x # enter expert mode commands
h # recompute MBR codes
w # write data and quit
Y # confirm
EOF
# format the partitions
mkfs.fat -F32 ${DEV}2 # format partition 2 as fat32
mkfs.ext4 ${DEV}3 # format partition 3 as ext4
# create mount points
MNT=$(pwd)/mnt
BOOT=${MNT}/boot
EFI=${BOOT}/EFI
mkdir ${MNT}
mount ${DEV}3 ${MNT}
mkdir -p ${EFI}
mount ${DEV}2 ${EFI}
# install the grub
grub-install --target=x86_64-efi --recheck --removable --efi-directory=${EFI} --boot-directory=${BOOT} # UEFI
grub-install --target=i386-pc --recheck --boot-directory=${BOOT} ${DEV}
# copy grub configuration template
cp -r ${GLIM}/grub2/* ${BOOT}/grub
# make all directories exist
ISO_DEST=${BOOT}/iso
if [ "$#" -ge 3 ]; then
ISO_SRC=$2
else
ISO_SRC=$(pwd)/iso # default source path
fi
# create iso destination directory
mkdir -p ${ISO_DEST}
# for each distro, copy the iso from the source to the destination
DISTROS=( antergos antix arch bodhi centos clonezilla debian elementary fedora gparted grml ipxe kali linuxmint manjaro netrunner peppermint porteus rhel sabayon sysrescd tails ubuntu void xubuntu)
for distro in "${DISTROS[@]}" do
if [ ! -d "${ISO_DEST}/${distro}"]; then
# create directory containing the distro iso
mkdir -p ${ISO_DEST}/${distro}
fi
# update the iso if modified (-u)
cp -vu ${ISO_SRC}/${distro}/*.iso ${ISO_DEST}/${distro}
done
# umount mount points and erase mnt directory
umount ${EFI}
umount ${MNT}
rmdir ${MNT}
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