From e8cdba85c48dcbbd42e6fcb5be3aa2912008cb84 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <esmil@labitat.dk>
Date: Tue, 7 Nov 2017 16:27:49 +0100
Subject: initial commit

---
 .../files/kernel/90-loaderentry.install            | 89 ++++++++++++++++++++++
 .../files/kernel/95-syslinux-menu.install          | 40 ++++++++++
 2 files changed, 129 insertions(+)
 create mode 100755 roles/space_server/files/kernel/90-loaderentry.install
 create mode 100755 roles/space_server/files/kernel/95-syslinux-menu.install

(limited to 'roles/space_server/files/kernel')

diff --git a/roles/space_server/files/kernel/90-loaderentry.install b/roles/space_server/files/kernel/90-loaderentry.install
new file mode 100755
index 0000000..d31529e
--- /dev/null
+++ b/roles/space_server/files/kernel/90-loaderentry.install
@@ -0,0 +1,89 @@
+#!/bin/bash
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+
+COMMAND="$1"
+KERNEL_VERSION="$2"
+BOOT_DIR_ABS="$3"
+KERNEL_IMAGE="$4"
+
+if [[ -f /etc/machine-id ]]; then
+    read MACHINE_ID < /etc/machine-id
+fi
+
+if ! [[ $MACHINE_ID ]]; then
+    exit 1
+fi
+
+BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION"
+BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR}
+LOADER_ENTRY="$BOOT_ROOT/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf"
+MENU="$BOOT_ROOT/loader/${MACHINE_ID}.cfg"
+
+if [[ $COMMAND == remove ]]; then
+    exec rm -f "$LOADER_ENTRY"
+fi
+
+if ! [[ $COMMAND == add ]]; then
+    exit 1
+fi
+
+if ! [[ $KERNEL_IMAGE ]]; then
+    exit 1
+fi
+
+if [[ -f /etc/os-release ]]; then
+    . /etc/os-release
+elif [[ -f /usr/lib/os-release ]]; then
+    . /usr/lib/os-release
+fi
+
+if ! [[ $PRETTY_NAME ]]; then
+    PRETTY_NAME="Linux $KERNEL_VERSION"
+fi
+
+declare -a BOOT_OPTIONS
+
+if [[ -f /etc/kernel/cmdline ]]; then
+    read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline
+fi
+
+if ! [[ ${BOOT_OPTIONS[*]} ]]; then
+    read -r -d '' -a line < /proc/cmdline
+    for i in "${line[@]}"; do
+        [[ "${i#initrd=*}" != "$i" ]] && continue
+        BOOT_OPTIONS+=("$i")
+    done
+fi
+
+if ! [[ ${BOOT_OPTIONS[*]} ]]; then
+    echo "Could not determine the kernel command line parameters." >&2
+    echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2
+    exit 1
+fi
+
+cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS/linux" &&
+   chown root:root "$BOOT_DIR_ABS/linux" &&
+   chmod 0644 "$BOOT_DIR_ABS/linux" || {
+    echo "Could not copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'." >&2
+    exit 1
+}
+
+mkdir -p "${LOADER_ENTRY%/*}" || {
+    echo "Could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2
+    exit 1
+}
+
+{
+    echo "MENU LABEL $PRETTY_NAME $KERNEL_VERSION"
+    echo "LINUX      $BOOT_DIR/linux"
+    echo "APPEND     ${BOOT_OPTIONS[*]}"
+    [[ -f $BOOT_DIR_ABS/initrd ]] && \
+        echo "INITRD     $BOOT_DIR/initrd"
+    :
+} > "$LOADER_ENTRY" || {
+    echo "Could not create loader entry '$LOADER_ENTRY'." >&2
+    exit 1
+}
+
+exit 0
diff --git a/roles/space_server/files/kernel/95-syslinux-menu.install b/roles/space_server/files/kernel/95-syslinux-menu.install
new file mode 100755
index 0000000..06ddad7
--- /dev/null
+++ b/roles/space_server/files/kernel/95-syslinux-menu.install
@@ -0,0 +1,40 @@
+#!/bin/bash
+# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# ex: ts=8 sw=4 sts=4 et filetype=sh
+
+COMMAND="$1"
+KERNEL_VERSION="$2"
+BOOT_DIR_ABS="$3"
+KERNEL_IMAGE="$4"
+
+if [[ -f /etc/machine-id ]]; then
+    read MACHINE_ID < /etc/machine-id
+fi
+
+if ! [[ $MACHINE_ID ]]; then
+    exit 1
+fi
+
+BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION"
+BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR}
+MENU="$BOOT_ROOT/loader/${MACHINE_ID}.cfg"
+
+{
+    declare -a paths
+    len=0
+    for path in "$BOOT_ROOT/loader/entries/$MACHINE_ID"-*; do
+        paths[$((len++))]="$path"
+    done
+
+    i=0
+    while [[ $len -gt 0 ]]; do
+        path="${paths[$((--len))]}"
+        echo "LABEL $((++i))"
+        echo "INCLUDE ${path#$BOOT_ROOT}"
+    done
+} > "$MENU" || {
+    echo "Could not create aggregated menu '$MENU'." >&2
+    exit 1
+}
+
+exit 0
-- 
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