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Commit | Line | Data |
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2fa6fd3a | 1 | #!/bin/bash |
d837ac39 HH |
2 | |
3 | export LANG=C | |
4 | ||
5 | COMMAND="$1" | |
6 | KERNEL_VERSION="$2" | |
8652d549 HH |
7 | BOOT_DIR_ABS="${3%/*}/0-rescue" |
8 | KERNEL_IMAGE="$4" | |
9 | ||
2fa6fd3a HH |
10 | |
11 | dropindirs_sort() | |
12 | { | |
13 | suffix=$1; shift | |
14 | args=("$@") | |
15 | files=$( | |
16 | while (( $# > 0 )); do | |
17 | for i in ${1}/*${suffix}; do | |
18 | [[ -f $i ]] && echo ${i##*/} | |
19 | done | |
20 | shift | |
21 | done | sort -Vu | |
22 | ) | |
23 | ||
24 | for f in $files; do | |
25 | for d in "${args[@]}"; do | |
26 | if [[ -f "$d/$f" ]]; then | |
27 | echo "$d/$f" | |
28 | continue 2 | |
29 | fi | |
30 | done | |
31 | done | |
32 | } | |
d837ac39 HH |
33 | |
34 | [[ -f /etc/os-release ]] && . /etc/os-release | |
478aa7da | 35 | |
b71d162a YW |
36 | if [[ ${KERNEL_INSTALL_MACHINE_ID+x} ]]; then |
37 | MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID | |
38 | elif [[ -f /etc/machine-id ]] ; then | |
39 | read MACHINE_ID < /etc/machine-id | |
478aa7da HH |
40 | fi |
41 | ||
b71d162a YW |
42 | if ! [[ $MACHINE_ID ]]; then |
43 | exit 0 | |
44 | fi | |
478aa7da | 45 | |
d837ac39 | 46 | if [[ -f /etc/kernel/cmdline ]]; then |
a6018700 | 47 | read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline |
a7d3ad67 | 48 | elif [[ -f /usr/lib/kernel/cmdline ]]; then |
a6018700 | 49 | read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline |
d837ac39 | 50 | fi |
10e59202 | 51 | |
d837ac39 | 52 | if ! [[ "${BOOT_OPTIONS[@]}" ]]; then |
10e59202 HH |
53 | read -r -d '' -a line < /proc/cmdline |
54 | for i in "${line[@]}"; do | |
55 | [[ "${i#initrd=*}" != "$i" ]] && continue | |
56 | BOOT_OPTIONS+=("$i") | |
57 | done | |
d837ac39 | 58 | fi |
10e59202 HH |
59 | |
60 | if ! [[ ${BOOT_OPTIONS[*]} ]]; then | |
61 | echo "Could not determine the kernel command line parameters." >&2 | |
62 | echo "Please specify the kernel command line in /etc/kernel/cmdline!" >&2 | |
d837ac39 HH |
63 | exit 1 |
64 | fi | |
65 | ||
f8c24964 | 66 | if [[ -d "${BOOT_DIR_ABS%/*}" ]]; then |
b39b8452 JMC |
67 | BOOT_DIR="/${MACHINE_ID}/0-rescue" |
68 | BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR} | |
69 | LOADER_ENTRY="$BOOT_ROOT/loader/entries/${MACHINE_ID}-0-rescue.conf" | |
70 | KERNEL="linux" | |
71 | INITRD="initrd" | |
72 | else | |
73 | BLS_DIR="/boot/loader/entries" | |
b39b8452 JMC |
74 | BOOT_DIR_ABS="/boot" |
75 | LOADER_ENTRY="$BLS_DIR/${MACHINE_ID}-0-rescue.conf" | |
76 | KERNEL="vmlinuz-0-rescue-${MACHINE_ID}" | |
77 | INITRD="initramfs-0-rescue-${MACHINE_ID}.img" | |
78 | fi | |
d837ac39 HH |
79 | |
80 | ret=0 | |
81 | ||
82 | case "$COMMAND" in | |
83 | add) | |
b39b8452 JMC |
84 | [[ -f "$LOADER_ENTRY" ]] && [[ -f "$BOOT_DIR_ABS/$KERNEL" ]] \ |
85 | && [[ -f "$BOOT_DIR_ABS/$INITRD" ]] && exit 0 | |
d837ac39 | 86 | |
2fa6fd3a HH |
87 | # source our config dir |
88 | for f in $(dropindirs_sort ".conf" "/etc/dracut.conf.d" "/usr/lib/dracut/dracut.conf.d"); do | |
89 | [[ -e $f ]] && . "$f" | |
90 | done | |
91 | ||
92 | [[ $dracut_rescue_image != "yes" ]] && exit 0 | |
93 | ||
c0c6c74d HH |
94 | [[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS" |
95 | ||
b39b8452 JMC |
96 | if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS/$KERNEL"; then |
97 | echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/$KERNEL'!" >&2 | |
2fa6fd3a HH |
98 | fi |
99 | ||
b39b8452 | 100 | if [[ ! -f "$BOOT_DIR_ABS/$INITRD" ]]; then |
48c283a2 | 101 | dracut -f --no-hostonly -a "rescue" "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION" |
b39b8452 JMC |
102 | ((ret+=$?)) |
103 | fi | |
104 | ||
f8c24964 | 105 | if [[ "${BOOT_DIR_ABS}" != "/boot" ]]; then |
b39b8452 JMC |
106 | { |
107 | echo "title $PRETTY_NAME - Rescue Image" | |
108 | echo "version $KERNEL_VERSION" | |
109 | echo "machine-id $MACHINE_ID" | |
110 | echo "options ${BOOT_OPTIONS[@]} rd.auto=1" | |
111 | echo "linux $BOOT_DIR/linux" | |
112 | echo "initrd $BOOT_DIR/initrd" | |
113 | } > $LOADER_ENTRY | |
114 | else | |
115 | cp -aT "${KERNEL_IMAGE%/*}/bls.conf" $LOADER_ENTRY | |
116 | sed -i 's/'$KERNEL_VERSION'/0-rescue-'${MACHINE_ID}'/' $LOADER_ENTRY | |
117 | fi | |
d837ac39 | 118 | |
d837ac39 | 119 | ((ret+=$?)) |
d837ac39 HH |
120 | ;; |
121 | ||
122 | remove) | |
2fa6fd3a | 123 | exit 0 |
d837ac39 HH |
124 | ;; |
125 | ||
126 | *) | |
127 | usage | |
128 | ret=1;; | |
129 | esac | |
130 | ||
d837ac39 | 131 | exit $ret |