#!/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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# We need 200 Mb for the boot partition
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boot_size=200
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# 50% for the second rootfs
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testfs_ratio=50
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found="no"
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echo "Searching for a hard drive..."
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for device in 'hda' 'hdb' 'sda' 'sdb' 'mmcblk0' 'mmcblk1'
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do
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if [ -e /sys/block/${device}/removable ]; then
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if [ "$(cat /sys/block/${device}/removable)" = "0" ]; then
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found="yes"
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while true; do
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# Try sleeping here to avoid getting kernel messages
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# obscuring/confusing user
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sleep 5
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echo "Found drive at /dev/${device}. Do you want to install this image there? [y/n]"
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read answer
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if [ "$answer" = "y" ] ; then
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break
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fi
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if [ "$answer" = "n" ] ; then
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found=no
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break
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fi
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echo "Please answer y or n"
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done
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fi
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fi
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if [ "$found" = "yes" ]; then
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break;
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fi
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done
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if [ "$found" = "no" ]; then
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exit 1
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fi
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echo "Installing image on /dev/${device}"
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#
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# The udev automounter can cause pain here, kill it
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#
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rm -f /etc/udev/rules.d/automount.rules
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rm -f /etc/udev/scripts/mount*
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#
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# Unmount anything the automounter had mounted
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#
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umount /dev/${device}* 2> /dev/null || /bin/true
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mkdir -p /tmp
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cat /proc/mounts > /etc/mtab
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disk_size=$(parted /dev/${device} unit mb print | grep '^Disk .*: .*MB' | cut -d" " -f 3 | sed -e "s/MB//")
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testfs_size=$((disk_size*testfs_ratio/100))
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rootfs_size=$((disk_size-boot_size-testfs_size))
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rootfs_start=$((boot_size))
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rootfs_end=$((rootfs_start+rootfs_size))
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testfs_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#mmcblk}" = "${device}" ]; then
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part_prefix="p"
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rootwait="rootwait"
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fi
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bootfs=/dev/${device}${part_prefix}1
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rootfs=/dev/${device}${part_prefix}2
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testfs=/dev/${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 "Testfs partition size: $testfs_size MB ($testfs)"
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echo "*****************"
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echo "Deleting partition table on /dev/${device} ..."
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dd if=/dev/zero of=/dev/${device} bs=512 count=2
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echo "Creating new partition table on /dev/${device} ..."
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parted /dev/${device} mklabel gpt
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echo "Creating boot partition on $bootfs"
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parted /dev/${device} mkpart primary 0% $boot_size
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parted /dev/${device} set 1 boot on
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echo "Creating rootfs partition on $rootfs"
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parted /dev/${device} mkpart primary $rootfs_start $rootfs_end
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echo "Creating testfs partition on $testfs"
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parted /dev/${device} mkpart primary $testfs_start 100%
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parted /dev/${device} print
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echo "Formatting $bootfs to vfat..."
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mkfs.vfat -n "boot" $bootfs
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echo "Formatting $rootfs to ext3..."
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mkfs.ext3 -L "platform" $rootfs
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echo "Formatting $testfs to ext3..."
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mkfs.ext3 -L "testrootfs" $testfs
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mkdir /ssd
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mkdir /rootmnt
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mkdir /bootmnt
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mount $rootfs /ssd
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mount -o rw,loop,noatime,nodiratime /run/media/$1/$2 /rootmnt
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echo "Copying rootfs files..."
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cp -a /rootmnt/* /ssd
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touch /ssd/etc/masterimage
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if [ -d /ssd/etc/ ] ; then
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# We dont want udev to mount our root device while we're booting...
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if [ -d /ssd/etc/udev/ ] ; then
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echo "/dev/${device}" >> /ssd/etc/udev/mount.blacklist
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fi
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fi
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umount /ssd
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umount /rootmnt
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echo "Preparing boot partition..."
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mount $bootfs /ssd
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EFIDIR="/ssd/EFI/BOOT"
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mkdir -p $EFIDIR
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cp /run/media/$1/vmlinuz /ssd
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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/$1/EFI/BOOT/grub.cfg ]; then
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GRUBCFG="$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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# Delete any root= strings
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sed -i "s/ root=[^ ]*/ /" $GRUBCFG
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# Add the root= and other standard boot options
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sed -i "s@linux /vmlinuz *@linux /vmlinuz root=$rootfs rw $rootwait quiet @" $GRUBCFG
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fi
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if [ -d /run/media/$1/loader ]; then
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SYSTEMDBOOT_CFGS="/ssd/loader/entries/*.conf"
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# copy config files for systemd-boot
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cp -dr /run/media/$1/loader /ssd
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# delete the install entry
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rm -f /ssd/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=[^ ]*/ /" $SYSTEMDBOOT_CFGS
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# add the root= and other standard boot options
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sed -i "s@options *@options root=$rootfs rw $rootwait quiet @" $SYSTEMDBOOT_CFGS
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# Add the test label
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echo -ne "title test\nlinux /test-kernel\noptions root=$testfs rw $rootwait quiet\n" > /ssd/loader/entries/test.conf
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fi
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umount /ssd
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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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