EFI: Make installer EFI aware

[YOCTO #1919]

Create a basic EFI installer script modeled after the existing installer
and add it to a new initramfs-live-install-efi recipe. Update the
init-live.sh script to distinguish between LABEL=install and
LABEL=install-efi and select the appropriate script. Add the efi
installer to core-image-minimal-initramfs.

Update grub-efi.bbclass to use "LABEL=install-efi" when it detects a
label of "install". This is clearly not ideal, but a proper fix would
involve decoupling the LABELS assignment from the image-live.bbclass
usage of SYSLINUX_LABELS. We should be able to address that in a
follow-on clean-up series.

V2: Include missing initramfs-live-install-efi_1.0.bb
V3: Rebase after Radu's console_params fix

(From OE-Core rev: 4bce3417917a3e88ba6529db394525fba82e0699)

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/grub-efi.bbclass

@@ -99,6 +99,8 @@ python build_grub_cfg() {
         bb.data.update_data(localdata)
 
         cfgfile.write('\nmenuentry \'%s\'{\n' % (label))
+        if label == "install":
+            label = "install-efi"
         cfgfile.write('linux /vmlinuz LABEL=%s' % (label))
 
         append = localdata.getVar('APPEND', True)

meta/recipes-core/images/core-image-minimal-initramfs.bb

@@ -3,7 +3,7 @@ DESCRIPTION = "Small image capable of booting a device. The kernel includes \
 the Minimal RAM-based Initial Root Filesystem (initramfs), which finds the \
 first “init” program more efficiently."
 
-IMAGE_INSTALL = "initramfs-live-boot initramfs-live-install busybox udev base-passwd"
+IMAGE_INSTALL = "initramfs-live-boot initramfs-live-install initramfs-live-install-efi busybox udev base-passwd"
 
 # Do not pollute the initrd image with rootfs features
 IMAGE_FEATURES = ""

meta/recipes-core/initrdscripts/files/init-install-efi.sh

@@ -0,0 +1,175 @@
+#!/bin/sh -e
+#
+# Copyright (c) 2012, Intel Corporation.
+# All rights reserved.
+#
+# install.sh [device_name] [rootfs_name]
+#
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+
+# We need 20 Mb for the boot partition
+boot_size=20
+
+# 5% for swap
+swap_ratio=5
+
+found="no"
+
+echo "Searching for a hard drive..."
+for device in 'hda' 'hdb' 'sda' 'sdb' 'mmcblk0' 'mmcblk1'
+do
+    if [ -e /sys/block/${device}/removable ]; then
+        if [ "$(cat /sys/block/${device}/removable)" = "0" ]; then
+            found="yes"
+
+            while true; do
+                # Try sleeping here to avoid getting kernel messages
+                # obscuring/confusing user
+                sleep 5
+                echo "Found drive at /dev/${device}. Do you want to install this image there ? [y/n]"
+                read answer
+                if [ "$answer" = "y" ] ; then
+                    break
+                fi
+
+                if [ "$answer" = "n" ] ; then
+                    found=no
+                    break
+                fi
+
+                echo "Please answer y or n"
+            done
+        fi
+    fi
+
+    if [ "$found" = "yes" ]; then
+        break;
+    fi
+
+done
+
+if [ "$found" = "no" ]; then
+    exit 1
+fi
+
+echo "Installing image on /dev/${device}"
+
+#
+# The udev automounter can cause pain here, kill it
+#
+rm -f /etc/udev/scripts/mount*
+
+#
+# Unmount anything the automounter had mounted
+#
+umount /dev/${device}* 2> /dev/null || /bin/true
+
+mkdir -p /tmp
+cat /proc/mounts > /etc/mtab
+
+disk_size=$(parted /dev/${device} unit mb print | grep Disk | cut -d" " -f 3 | sed -e "s/MB//")
+
+swap_size=$((disk_size*swap_ratio/100))
+rootfs_size=$((disk_size-boot_size-swap_size))
+
+rootfs_start=$((boot_size))
+rootfs_end=$((rootfs_start+rootfs_size))
+swap_start=$((rootfs_end))
+
+# MMC devices are special in a couple of ways
+# 1) they use a partition prefix character 'p'
+# 2) they are detected asynchronously (need rootwait)
+rootwait=""
+part_prefix=""
+if [ ! "${device#mmcblk}" = "${device}" ]; then
+    part_prefix="p"
+    rootwait="rootwait"
+fi
+bootfs=/dev/${device}${part_prefix}1
+rootfs=/dev/${device}${part_prefix}2
+swap=/dev/${device}${part_prefix}3
+
+echo "*****************"
+echo "Boot partition size:   $boot_size MB ($bootfs)"
+echo "Rootfs partition size: $rootfs_size MB ($rootfs)"
+echo "Swap partition size:   $swap_size MB ($swap)"
+echo "*****************"
+echo "Deleting partition table on /dev/${device} ..."
+dd if=/dev/zero of=/dev/${device} bs=512 count=2
+
+echo "Creating new partition table on /dev/${device} ..."
+parted /dev/${device} mklabel gpt
+
+echo "Creating boot partition on $bootfs"
+parted /dev/${device} mkpart primary 0% $boot_size
+
+echo "Creating rootfs partition on $rootfs"
+parted /dev/${device} mkpart primary $rootfs_start $rootfs_end
+
+echo "Creating swap partition on $swap"
+parted /dev/${device} mkpart primary $swap_start 100%
+
+parted /dev/${device} print
+
+echo "Formatting $bootfs to vfat..."
+mkfs.vfat $bootfs
+
+echo "Formatting $rootfs to ext3..."
+mkfs.ext3 $rootfs
+
+echo "Formatting swap partition...($swap)"
+mkswap $swap
+
+mkdir /ssd
+mkdir /rootmnt
+mkdir /bootmnt
+
+mount $rootfs /ssd
+mount -o rw,loop,noatime,nodiratime /media/$1/$2 /rootmnt
+
+echo "Copying rootfs files..."
+cp -a /rootmnt/* /ssd
+
+if [ -d /ssd/etc/ ] ; then
+    echo "$swap                swap             swap       defaults              0  0" >> /ssd/etc/fstab
+
+    # We dont want udev to mount our root device while we're booting...
+    if [ -d /ssd/etc/udev/ ] ; then
+        echo "/dev/${device}" >> /ssd/etc/udev/mount.blacklist
+    fi
+fi
+
+umount /ssd
+umount /rootmnt
+
+echo "Preparing boot partition..."
+mount $bootfs /ssd
+
+EFIDIR="/ssd/EFI/BOOT"
+mkdir -p $EFIDIR
+GRUBCFG="$EFIDIR/grub.cfg"
+
+cp /media/$1/vmlinuz /ssd
+# Copy the efi loader and config (booti*.efi and grub.cfg)
+cp /media/$1/EFI/BOOT/* $EFIDIR
+
+# Update grub config for the installed image
+# Delete the install entry
+sed -i "/menuentry 'install'/,/^}/d" $GRUBCFG
+# Delete the initrd lines
+sed -i "/initrd /d" $GRUBCFG
+# Delete any LABEL= strings
+sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG
+# Replace the ramdisk root with the install device and include other options
+sed -i "s@ root=[^ ]*@ root=$rootfs rw $rootwait quiet@" $GRUBCFG
+
+umount /ssd
+sync
+
+echo "Remove your installation media, and press ENTER"
+
+read enter
+
+echo "Rebooting..."
+reboot -f

meta/recipes-core/initrdscripts/files/init-live.sh

@@ -116,11 +116,11 @@ case $label in
 	    fi
 	fi
 	;;
-    install)
+    install|install-efi)
 	if [ -f /media/$i/$ISOLINUX/$ROOT_IMAGE ] ; then
-	    ./install.sh $i/$ISOLINUX $ROOT_IMAGE $video_mode $vga_mode $console_params
+	    ./$label.sh $i/$ISOLINUX $ROOT_IMAGE $video_mode $vga_mode $console_params
 	else
-	    fatal "Could not find install script"
+	    fatal "Could not find $label script"
 	fi
 
 	# If we're getting here, we failed...

meta/recipes-core/initrdscripts/initramfs-live-install-efi_1.0.bb

@@ -0,0 +1,22 @@
+DESCRIPTION = "A live image init script for grub-efi"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+SRC_URI = "file://init-install-efi.sh"
+
+PR = "r0"
+
+RDEPENDS_${PN} = "parted e2fsprogs-mke2fs dosfstools"
+
+do_install() {
+        install -m 0755 ${WORKDIR}/init-install-efi.sh ${D}/install-efi.sh
+}
+
+# While this package maybe an allarch due to it being a
+# simple script, reality is that it is Host specific based
+# on the COMPATIBLE_HOST below, which needs to take precedence
+#inherit allarch
+INHIBIT_DEFAULT_DEPS = "1"
+
+FILES_${PN} = " /install-efi.sh "
+
+COMPATIBLE_HOST = "(i.86|x86_64).*-linux"