#!/bin/sh -e
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#
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# Copyright (c) 2012, Intel Corporation.
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# All rights reserved.
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#
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# install.sh [device_name] [rootfs_name]
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#
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PATH=/sbin:/bin:/usr/sbin:/usr/bin
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# figure out how big of a boot partition we need
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boot_size=$(du -ms /run/media/$1/ | awk '{print $1}')
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# remove rootfs.img ($2) from the size if it exists, as its not installed to /boot
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if [ -e /run/media/$1/$2 ]; then
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boot_size=$(( boot_size - $( du -ms /run/media/$1/$2 | awk '{print $1}') ))
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fi
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# remove initrd from size since its not currently installed
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if [ -e /run/media/$1/initrd ]; then
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boot_size=$(( boot_size - $( du -ms /run/media/$1/initrd | awk '{print $1}') ))
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fi
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# add 10M to provide some extra space for users and account
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# for rounding in the above subtractions
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boot_size=$(( boot_size + 10 ))
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# 5% for swap
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swap_ratio=5
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# Get a list of hard drives
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hdnamelist=""
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live_dev_name=`cat /proc/mounts | grep ${1%/} | awk '{print $1}'`
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live_dev_name=${live_dev_name#\/dev/}
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# Only strip the digit identifier if the device is not an mmc
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case $live_dev_name in
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mmcblk*)
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;;
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nvme*)
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;;
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*)
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live_dev_name=${live_dev_name%%[0-9]*}
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;;
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esac
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echo "Searching for hard drives ..."
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# Some eMMC devices have special sub devices such as mmcblk0boot0 etc
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# we're currently only interested in the root device so pick them wisely
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devices=`ls /sys/block/ | grep -v mmcblk` || true
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mmc_devices=`ls /sys/block/ | grep "mmcblk[0-9]\{1,\}$"` || true
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devices="$devices $mmc_devices"
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for device in $devices; do
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case $device in
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loop*)
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# skip loop device
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;;
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sr*)
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# skip CDROM device
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;;
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ram*)
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# skip ram device
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;;
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*)
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# skip the device LiveOS is on
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# Add valid hard drive name to the list
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case $device in
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$live_dev_name*)
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# skip the device we are running from
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;;
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*)
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hdnamelist="$hdnamelist $device"
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;;
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esac
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;;
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esac
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done
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if [ -z "${hdnamelist}" ]; then
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echo "You need another device (besides the live device /dev/${live_dev_name}) to install the image. Installation aborted."
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exit 1
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fi
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TARGET_DEVICE_NAME=""
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for hdname in $hdnamelist; do
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# Display found hard drives and their basic info
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echo "-------------------------------"
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echo /dev/$hdname
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if [ -r /sys/block/$hdname/device/vendor ]; then
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echo -n "VENDOR="
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cat /sys/block/$hdname/device/vendor
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fi
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if [ -r /sys/block/$hdname/device/model ]; then
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echo -n "MODEL="
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cat /sys/block/$hdname/device/model
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fi
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if [ -r /sys/block/$hdname/device/uevent ]; then
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echo -n "UEVENT="
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cat /sys/block/$hdname/device/uevent
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fi
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echo
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done
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# Get user choice
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while true; do
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echo "Please select an install target or press n to exit ($hdnamelist ): "
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read answer
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if [ "$answer" = "n" ]; then
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echo "Installation manually aborted."
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exit 1
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fi
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for hdname in $hdnamelist; do
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if [ "$answer" = "$hdname" ]; then
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TARGET_DEVICE_NAME=$answer
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break
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fi
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done
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if [ -n "$TARGET_DEVICE_NAME" ]; then
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break
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fi
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done
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if [ -n "$TARGET_DEVICE_NAME" ]; then
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echo "Installing image on /dev/$TARGET_DEVICE_NAME ..."
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else
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echo "No hard drive selected. Installation aborted."
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exit 1
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fi
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device=/dev/$TARGET_DEVICE_NAME
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#
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# The udev automounter can cause pain here, kill it
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#
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rm -f /etc/udev/rules.d/automount.rules
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rm -f /etc/udev/scripts/mount*
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#
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# Unmount anything the automounter had mounted
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#
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umount ${device}* 2> /dev/null || /bin/true
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mkdir -p /tmp
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# Create /etc/mtab if not present
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if [ ! -e /etc/mtab ] && [ -e /proc/mounts ]; then
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ln -sf /proc/mounts /etc/mtab
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fi
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disk_size=$(parted ${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")
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swap_size=$((disk_size*swap_ratio/100))
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rootfs_size=$((disk_size-boot_size-swap_size))
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rootfs_start=$((boot_size))
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rootfs_end=$((rootfs_start+rootfs_size))
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swap_start=$((rootfs_end))
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# MMC devices are special in a couple of ways
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# 1) they use a partition prefix character 'p'
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# 2) they are detected asynchronously (need rootwait)
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rootwait=""
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part_prefix=""
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if [ ! "${device#/dev/mmcblk}" = "${device}" ] || \
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[ ! "${device#/dev/nvme}" = "${device}" ]; then
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part_prefix="p"
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rootwait="rootwait"
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fi
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# USB devices also require rootwait
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if [ -n `readlink /dev/disk/by-id/usb* | grep $TARGET_DEVICE_NAME` ]; then
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rootwait="rootwait"
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fi
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bootfs=${device}${part_prefix}1
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rootfs=${device}${part_prefix}2
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swap=${device}${part_prefix}3
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echo "*****************"
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echo "Boot partition size: $boot_size MB ($bootfs)"
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echo "Rootfs partition size: $rootfs_size MB ($rootfs)"
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echo "Swap partition size: $swap_size MB ($swap)"
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echo "*****************"
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echo "Deleting partition table on ${device} ..."
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dd if=/dev/zero of=${device} bs=512 count=35
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echo "Creating new partition table on ${device} ..."
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parted ${device} mklabel gpt
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echo "Creating boot partition on $bootfs"
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parted ${device} mkpart boot fat32 0% $boot_size
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parted ${device} set 1 boot on
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echo "Creating rootfs partition on $rootfs"
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parted ${device} mkpart root ext4 $rootfs_start $rootfs_end
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echo "Creating swap partition on $swap"
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parted ${device} mkpart swap linux-swap $swap_start 100%
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parted ${device} print
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echo "Waiting for device nodes..."
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C=0
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while [ $C -ne 3 ] && [ ! -e $bootfs -o ! -e $rootfs -o ! -e $swap ]; do
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C=$(( C + 1 ))
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sleep 1
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done
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echo "Formatting $bootfs to vfat..."
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mkfs.vfat $bootfs
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echo "Formatting $rootfs to ext4..."
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mkfs.ext4 $rootfs
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echo "Formatting swap partition...($swap)"
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mkswap $swap
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mkdir /tgt_root
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mkdir /src_root
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mkdir -p /boot
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# Handling of the target root partition
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mount $rootfs /tgt_root
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mount -o rw,loop,noatime,nodiratime /run/media/$1/$2 /src_root
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echo "Copying rootfs files..."
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cp -a /src_root/* /tgt_root
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if [ -d /tgt_root/etc/ ] ; then
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boot_uuid=$(blkid -o value -s UUID ${bootfs})
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swap_part_uuid=$(blkid -o value -s PARTUUID ${swap})
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echo "/dev/disk/by-partuuid/$swap_part_uuid swap swap defaults 0 0" >> /tgt_root/etc/fstab
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echo "UUID=$boot_uuid /boot vfat defaults 1 2" >> /tgt_root/etc/fstab
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# We dont want udev to mount our root device while we're booting...
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if [ -d /tgt_root/etc/udev/ ] ; then
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echo "${device}" >> /tgt_root/etc/udev/mount.blacklist
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fi
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fi
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umount /src_root
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# Handling of the target boot partition
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mount $bootfs /boot
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echo "Preparing boot partition..."
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EFIDIR="/boot/EFI/BOOT"
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mkdir -p $EFIDIR
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# Copy the efi loader
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cp /run/media/$1/EFI/BOOT/*.efi $EFIDIR
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if [ -f /run/media/$1/EFI/BOOT/grub.cfg ]; then
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root_part_uuid=$(blkid -o value -s PARTUUID ${rootfs})
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GRUBCFG="$EFIDIR/grub.cfg"
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cp /run/media/$1/EFI/BOOT/grub.cfg $GRUBCFG
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# Update grub config for the installed image
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# Delete the install entry
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sed -i "/menuentry 'install'/,/^}/d" $GRUBCFG
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# Delete the initrd lines
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sed -i "/initrd /d" $GRUBCFG
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# Delete any LABEL= strings
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sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG
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# Replace root= and add additional standard boot options
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# We use root as a sentinel value, as vmlinuz is no longer guaranteed
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sed -i "s/ root=[^ ]*/ root=PARTUUID=$root_part_uuid rw $rootwait quiet /g" $GRUBCFG
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fi
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if [ -d /run/media/$1/loader ]; then
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rootuuid=$(blkid -o value -s PARTUUID ${rootfs})
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SYSTEMDBOOT_CFGS="/boot/loader/entries/*.conf"
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# copy config files for systemd-boot
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cp -dr /run/media/$1/loader /boot
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# delete the install entry
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rm -f /boot/loader/entries/install.conf
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# delete the initrd lines
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sed -i "/initrd /d" $SYSTEMDBOOT_CFGS
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# delete any LABEL= strings
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sed -i "s/ LABEL=[^ ]*/ /" $SYSTEMDBOOT_CFGS
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# delete any root= strings
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sed -i "s/ root=[^ ]*/ /" $SYSTEMDBOOT_CFGS
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# add the root= and other standard boot options
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sed -i "s@options *@options root=PARTUUID=$rootuuid rw $rootwait quiet @" $SYSTEMDBOOT_CFGS
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fi
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umount /tgt_root
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# copy any extra files needed for ESP
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if [ -d /run/media/$1/esp ]; then
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cp -r /run/media/$1/esp/* /boot
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fi
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# Copy kernel artifacts. To add more artifacts just add to types
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# For now just support kernel types already being used by something in OE-core
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for types in bzImage zImage vmlinux vmlinuz fitImage; do
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for kernel in `find /run/media/$1/ -name $types*`; do
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cp $kernel /boot
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done
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done
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umount /boot
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sync
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echo "Installation successful. Remove your installation media and press ENTER to reboot."
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read enter
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echo "Rebooting..."
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reboot -f
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