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-rwxr-xr-xprojects/cros-scripts/install/cros-kernel-install286
-rw-r--r--projects/cros-scripts/install/install1
2 files changed, 287 insertions, 0 deletions
diff --git a/projects/cros-scripts/install/cros-kernel-install b/projects/cros-scripts/install/cros-kernel-install
new file mode 100755
index 00000000..33168caa
--- /dev/null
+++ b/projects/cros-scripts/install/cros-kernel-install
@@ -0,0 +1,286 @@
+#!/bin/bash
+
+# Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+SYS_BLOCK_PATH="/sys/class/block"
+DEV_PATH="/dev"
+DEVICE="device"
+VENDOR="vendor"
+MODEL="model"
+NAME="name"
+
+usage() {
+ printf "$executable [action] [storage] [kernel image|kernel modules]\n" >&2
+
+ printf "\nActions:\n" >&2
+ printf " backup - Backup kernel image\n" >&2
+ printf " image - Install kernel image\n" >&2
+ printf " modules - Install kernel modules" >&2
+
+ usage_storage
+
+ printf "\nEnvironment variables:\n" >&2
+ printf " VBOOT_KEYS_PATH - Path to the vboot keys\n" >&2
+ printf " VBOOT_TOOLS_PATH - Path to vboot tools\n" >&2
+}
+
+usage_storage() {
+ printf "\nStorage:\n" >&2
+
+ local nodes=$( ls "$SYS_BLOCK_PATH" )
+ local node_path
+ local name
+
+ for node in $nodes
+ do
+ node_path="$DEV_PATH/$node"
+ if ! [ -b "$node_path" ]
+ then
+ continue
+ fi
+
+ name=$( storage_name "$node_path" )
+ if [ -z "$name" ]
+ then
+ continue
+ fi
+
+ printf " $node_path - $name\n" >&2
+ done
+}
+
+storage_affect_confirm() {
+ local storage_path=$1
+
+ local name=$( storage_name "$storage_path" )
+ local confirm
+
+ printf "This is going to affect the following storage:\n"
+ printf " $storage_path - $name\n"
+ printf "Press enter to confirm: "
+
+ read confirm
+}
+
+storage_name() {
+ local storage_path=$1
+
+ local node=$( basename "$storage_path" )
+ local vendor_path="$SYS_BLOCK_PATH/$node/$DEVICE/$VENDOR"
+ local model_path="$SYS_BLOCK_PATH/$node/$DEVICE/$MODEL"
+ local name_path="$SYS_BLOCK_PATH/$node/$DEVICE/$NAME"
+ local vendor
+ local name
+
+ if [ -f "$model_path" ]
+ then
+ name=$( cat "$model_path" )
+ elif [ -f "$name_path" ]
+ then
+ name=$( cat "$name_path" )
+ else
+ return 0
+ fi
+
+ name=$( echo "$name" | sed -e "s/^[[:space:]]*//;s/[[:space:]]*$//" )
+
+ if [ -f "$vendor_path" ]
+ then
+ vendor=$( cat "$vendor_path" )
+ vendor=$( echo "$vendor" | sed -e "s/^[[:space:]]*//;s/[[:space:]]*$//" )
+
+ name="$vendor $name"
+ fi
+
+ echo "$name"
+}
+
+storage_partition_path() {
+ local storage_path=$1
+ local index=$2
+
+ storage_partition_path="$storage_path$index"
+
+ if ! [ -b "$storage_partition_path" ]
+ then
+ storage_partition_path="$storage_path""p$index"
+ fi
+
+ if ! [ -b "$storage_partition_path" ]
+ then
+ return 1
+ fi
+
+ echo "$storage_partition_path"
+}
+
+storage_partition_mount_path() {
+ local storage_partition_path=$1
+
+ local storage_partition_mount_path=$( udisksctl info -b "$storage_partition_path" | grep "MountPoints" | sed "s/.*MountPoints:[[:space:]]*\(.*\)/\1/g" )
+
+ echo "$storage_partition_mount_path"
+}
+
+storage_kernel_path() {
+ local storage_path=$1
+
+ cgpt find -t kernel "$storage_path" | head -n 1
+}
+
+storage_rootfs_path() {
+ local storage_path=$1
+
+ cgpt find -t rootfs "$storage_path" | head -n 1
+}
+
+backup() {
+ local storage_path=$1
+ local kernel_image_path=$2
+
+ local storage_kernel_path=$( storage_kernel_path "$storage_path" )
+
+ if [ -z "$storage_kernel_path" ]
+ then
+ printf "No kernel partition found on storage $storage_path\n" >&2
+ return 1
+ fi
+
+ cat "$storage_kernel_path" > "$kernel_image_path"
+
+ printf "\nBacked up kernel image to $kernel_image_path\n"
+}
+
+image() {
+ local storage_path=$1
+ local kernel_image_path=$2
+
+ local storage_kernel_path=$( storage_kernel_path "$storage_path" )
+
+ if [ -z "$storage_kernel_path" ]
+ then
+ printf "No kernel partition found on storage $storage_path\n" >&2
+ return 1
+ fi
+
+ storage_affect_confirm "$storage_path"
+
+ cat "$kernel_image_path" > "$storage_kernel_path"
+ sync
+
+ printf "\nInstalled kernel image on storage $storage_path\n"
+}
+
+modules() {
+ local storage_path=$1
+ local kernel_modules_path=$2
+
+ local storage_rootfs_path=$( storage_rootfs_path "$storage_path" )
+
+ if [ -z "$storage_rootfs_path" ]
+ then
+ printf "No rootfs partition found on storage $storage_path\n" >&2
+ return 1
+ fi
+
+ storage_affect_confirm "$storage_path"
+
+ # Partition may already be mounted.
+ udisksctl mount -b "$storage_rootfs_path" || true
+
+ storage_rootfs_mount_path=$( storage_partition_mount_path "$storage_rootfs_path" )
+
+ rsync -a --keep-dirlinks "$kernel_modules_path" "$storage_rootfs_mount_path/"
+ sync
+
+ udisksctl unmount -b "$storage_rootfs_path"
+
+ printf "\nInstalled kernel modules on storage $storage_path\n"
+}
+
+requirements() {
+ local requirement
+ local requirement_path
+
+ for requirement in "$@"
+ do
+ requirement_path=$( which "$requirement" || true )
+
+ if [ -z "$requirement_path" ]
+ then
+ printf "Missing requirement: $requirement\n" >&2
+ exit 1
+ fi
+ done
+}
+
+setup() {
+ root=$( realpath "$( dirname "$0" )" )
+ executable=$( basename "$0" )
+
+ if ! [ -z "$VBOOT_TOOLS_PATH" ]
+ then
+ PATH="$PATH:$VBOOT_TOOLS_PATH"
+ fi
+
+ if [ -z "$VBOOT_KEYS_PATH" ]
+ then
+ if ! [ -z "$VBOOT_TOOLS_PATH" ] && [ -d "$VBOOT_TOOLS_PATH/devkeys" ]
+ then
+ VBOOT_KEYS_PATH="$VBOOT_TOOLS_PATH/devkeys"
+ else
+ VBOOT_KEYS_PATH="/usr/share/vboot/devkeys"
+ fi
+ fi
+}
+
+cros_kernel_install() {
+ local action=$1
+ local storage_path=$2
+ local kernel_image_path=$3
+ local kernel_modules_path=$3
+
+ set -e
+
+ setup "$@"
+
+ if [ -z "$action" ] || [ -z "$storage_path" ] || [ -z "$kernel_image_path" ] || [ -z "$kernel_modules_path" ]
+ then
+ usage
+ exit 1
+ fi
+
+ case $action in
+ "backup")
+ requirements "cgpt"
+ backup "$storage_path" "$kernel_image_path"
+ ;;
+ "image")
+ requirements "cgpt"
+ image "$storage_path" "$kernel_image_path"
+ ;;
+ "modules")
+ requirements "cgpt"
+ modules "$storage_path" "$kernel_modules_path"
+ ;;
+ *)
+ usage
+ exit 1
+ ;;
+ esac
+}
+
+cros_kernel_install "$@"
diff --git a/projects/cros-scripts/install/install b/projects/cros-scripts/install/install
index 5e1e68b8..e29374d4 100644
--- a/projects/cros-scripts/install/install
+++ b/projects/cros-scripts/install/install
@@ -1,4 +1,5 @@
cros-boot-keys:cros-boot-keys
cros-firmware-prepare:cros-firmware-prepare
+cros-kernel-install:cros-kernel-install
cros-kernel-prepare:cros-kernel-prepare
cros-medium-setup:cros-medium-setup