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663996b3 MS |
1 | #!/bin/bash |
2 | # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- | |
3 | # ex: ts=8 sw=4 sts=4 et filetype=sh | |
4 | ||
5 | COMMAND="$1" | |
6 | KERNEL_VERSION="$2" | |
7 | BOOT_DIR_ABS="$3" | |
8 | KERNEL_IMAGE="$4" | |
9 | ||
10 | if [[ -f /etc/machine-id ]]; then | |
11 | read MACHINE_ID < /etc/machine-id | |
12 | fi | |
13 | ||
14 | if ! [[ $MACHINE_ID ]]; then | |
15 | exit 1 | |
16 | fi | |
17 | ||
18 | BOOT_DIR="/$MACHINE_ID/$KERNEL_VERSION" | |
19 | LOADER_ENTRY="/boot/loader/entries/$MACHINE_ID-$KERNEL_VERSION.conf" | |
20 | ||
21 | if [[ $COMMAND == remove ]]; then | |
22 | exec rm -f "$LOADER_ENTRY" | |
23 | fi | |
24 | ||
25 | if ! [[ $COMMAND == add ]]; then | |
26 | exit 1 | |
27 | fi | |
28 | ||
29 | if ! [[ $KERNEL_IMAGE ]]; then | |
30 | exit 1 | |
31 | fi | |
32 | ||
33 | if [[ -f /etc/os-release ]]; then | |
34 | . /etc/os-release | |
e842803a MB |
35 | elif [[ -f /usr/lib/os-release ]]; then |
36 | . /usr/lib/os-release | |
663996b3 MS |
37 | fi |
38 | ||
39 | if ! [[ $PRETTY_NAME ]]; then | |
40 | PRETTY_NAME="Linux $KERNEL_VERSION" | |
41 | fi | |
42 | ||
14228c0d MB |
43 | declare -a BOOT_OPTIONS |
44 | ||
663996b3 MS |
45 | if [[ -f /etc/kernel/cmdline ]]; then |
46 | readarray -t BOOT_OPTIONS < /etc/kernel/cmdline | |
47 | fi | |
48 | ||
49 | if ! [[ ${BOOT_OPTIONS[*]} ]]; then | |
5eef597e MP |
50 | read -ar line < /proc/cmdline |
51 | for i in "${line[@]}"; do | |
52 | [[ "${i#initrd=*}" != "$i" ]] && continue | |
53 | BOOT_OPTIONS[${#BOOT_OPTIONS[@]}]="$i" | |
14228c0d | 54 | done |
663996b3 MS |
55 | fi |
56 | ||
14228c0d | 57 | if ! [[ ${BOOT_OPTIONS[*]} ]]; then |
663996b3 MS |
58 | echo "Could not determine the kernel command line parameters." >&2 |
59 | echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2 | |
60 | exit 1 | |
61 | fi | |
62 | ||
14228c0d MB |
63 | cp "$KERNEL_IMAGE" "$BOOT_DIR_ABS/linux" && |
64 | chown root:root "$BOOT_DIR_ABS/linux" && | |
65 | chmod 0644 "$BOOT_DIR_ABS/linux" || { | |
663996b3 MS |
66 | echo "Could not copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/linux'." >&2 |
67 | exit 1 | |
68 | } | |
69 | ||
70 | mkdir -p "${LOADER_ENTRY%/*}" || { | |
71 | echo "Could not create loader entry directory '${LOADER_ENTRY%/*}'." >&2 | |
72 | exit 1 | |
73 | } | |
74 | ||
75 | { | |
76 | echo "title $PRETTY_NAME" | |
77 | echo "version $KERNEL_VERSION" | |
78 | echo "machine-id $MACHINE_ID" | |
79 | echo "options ${BOOT_OPTIONS[*]}" | |
80 | echo "linux $BOOT_DIR/linux" | |
81 | [[ -f $BOOT_DIR_ABS/initrd ]] && \ | |
82 | echo "initrd $BOOT_DIR/initrd" | |
14228c0d | 83 | : |
663996b3 MS |
84 | } > "$LOADER_ENTRY" || { |
85 | echo "Could not create loader entry '$LOADER_ENTRY'." >&2 | |
86 | exit 1 | |
87 | } | |
88 | exit 0 |