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#!/bin/sh
# Copyright 2013, 2016, 2017, 2023 Patrick Volkerding, Sebeka, Minnesota, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# This script installs the elilo boot loader, the kernel, and optionally
# an initrd into the EFI System Partition. A boot menu entry can also be
# installed using efibootmgr. The kernel used will be whatever the symlink
# /boot/vmlinuz points to, and if /boot/initrd.gz exists, that will be
# installed as the initrd.
#
# The EFI System Partition is expected to be mounted on /boot/efi before
# running this script.
TMP=/var/log/setup/tmp
# Set the OS root directory (called T_PX for some unknown reason).
# If an argument is given to this script and it is a directory, it
# is taken to be the root directory. First though, we check for a
# directory named $T_PX, and that gets the first priority.
if [ ! -d "$T_PX" ]; then
if [ ! "$1" = "" ]; then
if [ -d "$1" ]; then
T_PX="$1"
fi
else
# Are we on the installer image?
if [ -r /usr/lib/setup/SeTpartitions ]; then
T_PX=/mnt
# Or, are we on a running system?
elif [ -r /etc/slackware-version ]; then
T_PX=/
# One more installer-likely thing:
elif [ -r /usr/lib/setup/setup ]; then
T_PX=/mnt
else
# We will have to assume we're on an installed and running system.
T_PX=/
fi
fi
fi
# Determine the root partition (such as /dev/sda1)
ROOT_DEVICE=$2
if [ "$ROOT_DEVICE" = "" ]; then
if [ -r $TMP/SeTrootdev ]; then
ROOT_DEVICE="$(cat $TMP/SeTrootdev)"
else
ROOT_DEVICE="$(mount | grep ' / ' | cut -f 1 -d ' ' | head -n 1)"
fi
fi
# If the system is not running under EFI, skip running this script:
if [ ! -d /sys/firmware/efi ]; then
if [ "$T_PX" = "/" ]; then
echo "ERROR: System is not running under UEFI."
fi
exit
fi
# If there's no vfat mounted on /boot/efi or $T_PX/boot/efi, forget it:
if ! mount | grep vfat | grep -wq /boot/efi ; then
if ! mount | grep vfat | grep -wq $T_PX/boot/efi ; then
if [ "$T_PX" = "/" ]; then
echo "ERROR: No EFI System Partition mounted on /boot/efi."
fi
exit
fi
fi
# Figure out the device and partition number of the ESP:
DEVLEN=8
PARTLEN=9
if mount | grep vfat | grep -wq /boot/efi ; then
mount | grep vfat | grep -w /boot/efi | grep -q -e nvme -e mmcblk && DEVLEN=12 && PARTLEN=14
EFI_DEVICE=$(mount | grep vfat | grep -w /boot/efi | cut -b 1-${DEVLEN})
EFI_PARTITION=$(mount | grep vfat | grep -w /boot/efi | cut -f 1 -d ' ' | cut -b ${PARTLEN}- | sed 's/[^0-9]*//g')
else
mount | grep vfat | grep -w $T_PX/boot/efi | grep -q -e nvme -e mmcblk && DEVLEN=12 && PARTLEN=14
EFI_DEVICE=$(mount | grep vfat | grep -w $T_PX/boot/efi | cut -b 1-${DEVLEN})
EFI_PARTITION=$(mount | grep vfat | grep -w $T_PX/boot/efi | cut -f 1 -d ' ' | cut -b ${PARTLEN}- | sed 's/[^0-9]*//g')
fi
# There better be a kernel:
if [ ! -r $T_PX/boot/vmlinuz ]; then
if [ "$T_PX" = "/" ]; then
echo "ERROR: No kernel found at /boot/vmlinuz."
fi
exit
fi
dialog --title "INSTALL ELILO" \
--backtitle "ELILO (EFI Linux Loader) installation" \
--menu "ELILO is a Linux boot loader for \
EFI based systems. Installing ELILO will allow you to boot your Linux \
system from the hard drive after selecting it from the UEFI boot menu. \
Since an EFI System Partition was detected on this machine, it is \
recommended that you install ELILO now. Please select an option:" \
13 70 2 \
"install" "Install ELILO on the EFI System Partition" \
"skip" "Do not install ELILO" 2> $TMP/reply
if [ $? = 1 -o $? = 255 ]; then
exit
fi
REPLY="`cat $TMP/reply`"
rm -f $TMP/reply
if [ "$REPLY" = "skip" ]; then
exit
fi
mkdir -p $T_PX/boot/efi/EFI/Slackware 1> /dev/null 2> /dev/null
cat << EOF > $T_PX/boot/efi/EFI/Slackware/elilo.conf
chooser=simple
delay=1
timeout=1
#
EOF
cp -a $T_PX/boot/elilo-x86_64.efi $T_PX/boot/efi/EFI/Slackware/elilo.efi 1> /dev/null 2> /dev/null
if [ -r $T_PX/boot/initrd.gz ]; then
cp $T_PX/boot/vmlinuz-generic $T_PX/boot/efi/EFI/Slackware/vmlinuz 1> /dev/null 2> /dev/null
touch -r $T_PX/boot/vmlinuz-generic $T_PX/boot/efi/EFI/Slackware/vmlinuz
cp $T_PX/boot/initrd.gz $T_PX/boot/efi/EFI/Slackware 1> /dev/null 2> /dev/null
touch -r $T_PX/boot/initrd.gz $T_PX/boot/efi/EFI/Slackware/initrd.gz
cat << EOF >> $T_PX/boot/efi/EFI/Slackware/elilo.conf
image=vmlinuz
label=vmlinuz
initrd=initrd.gz
EOF
else
cp $T_PX/boot/vmlinuz-huge $T_PX/boot/efi/EFI/Slackware/vmlinuz 1> /dev/null 2> /dev/null
touch -r $T_PX/boot/vmlinuz-huge $T_PX/boot/efi/EFI/Slackware/vmlinuz
cat << EOF >> $T_PX/boot/efi/EFI/Slackware/elilo.conf
image=vmlinuz
label=vmlinuz
EOF
fi
cat << EOF >> $T_PX/boot/efi/EFI/Slackware/elilo.conf
read-only
append="root=$ROOT_DEVICE vga=normal ro"
EOF
dialog --title "INSTALL BOOT MENU ENTRY?" \
--backtitle "ELILO (EFI Linux Loader) installation" \
--menu "Would you like to install \
a boot menu entry so that you can easily select Slackware when you boot your \
machine? WARNING: DO NOT install a boot menu entry on Apple hardware. \
Apple computers use a different type of EFI firmware, and efibootmgr has \
been known to damage them. On all other computers, it is recommended to add \
a boot menu entry. Please select an option:" \
14 70 2 \
"install" "Install a boot menu entry" \
"skip" "Do not install a boot menu entry" 2> $TMP/reply
if [ $? = 1 -o $? = 255 ]; then
exit
fi
REPLY="`cat $TMP/reply`"
rm -f $TMP/reply
if [ "$REPLY" = "skip" ]; then
exit
fi
efibootmgr -v | rev | cut -f 2- | rev | grep Boot0 | grep Slackware | while read line ; do
# Reject entries that don't exactly match as not our business
if [ ! "$(echo $line | cut -f 2- -d ' ')" = "Slackware" ]; then
continue
fi
ENTRY="$(efibootmgr -v | grep "^$(echo $line | cut -b1-8)")"
dialog --title "REMOVE OLD \"Slackware\" EFI BOOT ENTRY?" \
--backtitle "ELILO (EFI Linux Loader) installation" \
--yesno "An old Slackware boot entry has been found in your EFI boot menu. \
Would you like to remove this before installing the new Slackware boot \
entry? This is recommended.\n\nOld EFI boot menu entry:\n$ENTRY" 13 70
if [ ! $? = 0 ]; then
continue
fi
# Remove the boot entry:
efibootmgr -q -B -b $(echo $line | cut -b5-8)
sleep 1
done
efibootmgr -q -c -d $EFI_DEVICE -p $EFI_PARTITION -l "\\EFI\\Slackware\\elilo.efi" -L "Slackware"
sleep 1
efibootmgr -v | rev | cut -f 2- | rev | grep Boot0 | grep Slackware | while read line ; do
# Reject entries that don't exactly match as not our business
if [ ! "$(echo $line | cut -f 2- -d ' ')" = "Slackware" ]; then
continue
fi
ENTRY="$(efibootmgr -v | grep "^$(echo $line | cut -b1-8)")"
if echo $ENTRY | grep -q -F "\EFI\Slackware\elilo.efi" ; then
dialog --title "EFI BOOT ENTRY INSTALLED" \
--backtitle "ELILO (EFI Linux Loader) installation" \
--msgbox "A Slackware boot entry has been installed to your EFI boot
menu.\n\nEFI boot menu entry:\n$ENTRY" 11 70
fi
done
# Done.
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