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authorEmil Renner Berthing <esmil@labitat.dk>2017-11-07 16:27:49 +0100
committerEmil Renner Berthing <esmil@labitat.dk>2017-11-12 14:56:32 +0100
commite8cdba85c48dcbbd42e6fcb5be3aa2912008cb84 (patch)
tree41ba5163cf6f110521f2ebc9035f77d2754796a0 /roles/space_server/files/kernel/90-loaderentry.install
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initial commit
Diffstat (limited to 'roles/space_server/files/kernel/90-loaderentry.install')
-rwxr-xr-xroles/space_server/files/kernel/90-loaderentry.install89
1 files changed, 89 insertions, 0 deletions
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