#!/bin/sh -e
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#
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# Copyright (C) 2008-2011 Intel
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#
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# install.sh [device_name] [rootfs_name] [video_mode] [vga_mode]
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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 the 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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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 ${device}* 2> /dev/null || /bin/true
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if [ ! -b /dev/loop0 ] ; then
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mknod /dev/loop0 b 7 0
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fi
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mkdir -p /tmp
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if [ ! -L /etc/mtab ] && [ -e /proc/mounts ]; then
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ln -sf /proc/mounts /etc/mtab
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fi
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disk_size=$(parted ${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")
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grub_version=$(grub-install -V|sed 's/.* \([0-9]\).*/\1/')
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if [ $grub_version -eq 0 ] ; then
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bios_boot_size=0
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else
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# For GRUB 2 we need separate parition to store stage2 grub image
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# 2Mb value is chosen to align partition for best performance.
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bios_boot_size=2
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fi
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swap_size=$((disk_size*swap_ratio/100))
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rootfs_size=$((disk_size-bios_boot_size-boot_size-swap_size))
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boot_start=$((bios_boot_size))
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rootfs_start=$((bios_boot_size+boot_size))
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rootfs_end=$((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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if [ $grub_version -eq 0 ] ; then
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bios_boot=''
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bootfs=${device}${part_prefix}1
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rootfs=${device}${part_prefix}2
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swap=${device}${part_prefix}3
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else
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bios_boot=${device}${part_prefix}1
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bootfs=${device}${part_prefix}2
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rootfs=${device}${part_prefix}3
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swap=${device}${part_prefix}4
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fi
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echo "*****************"
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[ $grub_version -ne 0 ] && echo "BIOS boot partition size: $bios_boot_size MB ($bios_boot)"
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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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if [ $grub_version -eq 0 ] ; then
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parted ${device} mktable msdos
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echo "Creating boot partition on $bootfs"
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parted ${device} mkpart primary ext3 0% $boot_size
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else
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parted ${device} mktable gpt
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echo "Creating BIOS boot partition on $bios_boot"
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parted ${device} mkpart bios_boot 0% $bios_boot_size
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parted ${device} set 1 bios_grub on
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echo "Creating boot partition on $bootfs"
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parted ${device} mkpart boot ext3 $boot_start $boot_size
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fi
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echo "Creating rootfs partition on $rootfs"
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[ $grub_version -eq 0 ] && pname='primary' || pname='root'
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parted ${device} mkpart $pname ext4 $rootfs_start $rootfs_end
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echo "Creating swap partition on $swap"
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[ $grub_version -eq 0 ] && pname='primary' || pname='swap'
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parted ${device} mkpart $pname 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 ext3..."
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mkfs.ext3 $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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if [ $grub_version -ne 0 ] ; then
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boot_uuid=$(blkid -o value -s UUID ${bootfs})
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swap_part_uuid=$(blkid -o value -s PARTUUID ${swap})
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bootdev="UUID=$boot_uuid"
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swapdev=/dev/disk/by-partuuid/$swap_part_uuid
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else
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bootdev=${bootfs}
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swapdev=${swap}
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fi
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echo "$swapdev swap swap defaults 0 0" >> /tgt_root/etc/fstab
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echo "$bootdev /boot ext3 defaults 1 2" >> /tgt_root/etc/fstab
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# We dont want udev to mount our root device while we're booting...
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if [ -d /tgt_root/etc/udev/ ] ; then
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echo "${device}" >> /tgt_root/etc/udev/mount.blacklist
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fi
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fi
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umount /tgt_root
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umount /src_root
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echo "Looking for kernels to use as boot target.."
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# Find kernel to boot to
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# Give user options if multiple are found
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kernels="$(find /run/media/$1/ -type f \
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-name bzImage* -o -name zImage* \
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-o -name vmlinux* -o -name vmlinuz* \
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-o -name fitImage* \
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| sed s:.*/::)"
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if [ -n "$(echo $kernels)" ]; then
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# only one kernel entry if no space
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if [ -z "$(echo $kernels | grep " ")" ]; then
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kernel=$kernels
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echo "$kernel will be used as the boot target"
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else
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echo "Which kernel do we want to boot by default? The following kernels were found:"
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echo $kernels
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read answer
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kernel=$answer
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fi
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else
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echo "No kernels found, exiting..."
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exit 1
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fi
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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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if [ -f /etc/grub.d/00_header -a $grub_version -ne 0 ] ; then
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echo "Preparing custom grub2 menu..."
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root_part_uuid=$(blkid -o value -s PARTUUID ${rootfs})
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boot_uuid=$(blkid -o value -s UUID ${bootfs})
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GRUBCFG="/boot/grub/grub.cfg"
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mkdir -p $(dirname $GRUBCFG)
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cat >$GRUBCFG <<_EOF
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timeout=5
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default=0
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menuentry "Linux" {
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search --no-floppy --fs-uuid $boot_uuid --set root
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linux /$kernel root=PARTUUID=$root_part_uuid $rootwait rw $5 $3 $4 quiet
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}
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_EOF
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chmod 0444 $GRUBCFG
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fi
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grub-install ${device}
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if [ $grub_version -eq 0 ] ; then
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echo "(hd0) ${device}" > /boot/grub/device.map
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echo "Preparing custom grub menu..."
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echo "default 0" > /boot/grub/menu.lst
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echo "timeout 30" >> /boot/grub/menu.lst
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echo "title Live Boot/Install-Image" >> /boot/grub/menu.lst
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echo "root (hd0,0)" >> /boot/grub/menu.lst
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echo "kernel /$kernel root=$rootfs rw $3 $4 quiet" >> /boot/grub/menu.lst
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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 "Remove your installation media, and press ENTER"
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read enter
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echo "Rebooting..."
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reboot -f
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