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Commit | Line | Data |
---|---|---|
1 | #!/bin/bash | |
2 | ||
3 | export LANG=C | |
4 | ||
5 | COMMAND="$1" | |
6 | KERNEL_VERSION="$2" | |
7 | BOOT_DIR_ABS="${3%/*}/0-rescue" | |
8 | KERNEL_IMAGE="$4" | |
9 | ||
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 | } | |
33 | ||
34 | [[ -f /etc/os-release ]] && . /etc/os-release | |
35 | ||
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 | |
40 | fi | |
41 | ||
42 | if ! [[ $MACHINE_ID ]]; then | |
43 | exit 0 | |
44 | fi | |
45 | ||
46 | if [[ -f /etc/kernel/cmdline ]]; then | |
47 | read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline | |
48 | elif [[ -f /usr/lib/kernel/cmdline ]]; then | |
49 | read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline | |
50 | else | |
51 | declare -a BOOT_OPTIONS | |
52 | ||
53 | read -r -d '' -a line < /proc/cmdline | |
54 | for i in "${line[@]}"; do | |
55 | [[ "${i#initrd=*}" != "$i" ]] && continue | |
56 | BOOT_OPTIONS+=("$i") | |
57 | done | |
58 | fi | |
59 | ||
60 | if [[ -d "${BOOT_DIR_ABS%/*}" ]]; then | |
61 | BOOT_DIR="/${MACHINE_ID}/0-rescue" | |
62 | BOOT_ROOT=${BOOT_DIR_ABS%$BOOT_DIR} | |
63 | LOADER_ENTRY="$BOOT_ROOT/loader/entries/${MACHINE_ID}-0-rescue.conf" | |
64 | KERNEL="linux" | |
65 | INITRD="initrd" | |
66 | else | |
67 | BLS_DIR="/boot/loader/entries" | |
68 | BOOT_DIR_ABS="/boot" | |
69 | LOADER_ENTRY="$BLS_DIR/${MACHINE_ID}-0-rescue.conf" | |
70 | KERNEL="vmlinuz-0-rescue-${MACHINE_ID}" | |
71 | INITRD="initramfs-0-rescue-${MACHINE_ID}.img" | |
72 | fi | |
73 | ||
74 | ret=0 | |
75 | ||
76 | case "$COMMAND" in | |
77 | add) | |
78 | [[ -f "$LOADER_ENTRY" ]] && [[ -f "$BOOT_DIR_ABS/$KERNEL" ]] \ | |
79 | && [[ -f "$BOOT_DIR_ABS/$INITRD" ]] && exit 0 | |
80 | ||
81 | # source our config dir | |
82 | for f in $(dropindirs_sort ".conf" "/etc/dracut.conf.d" "/usr/lib/dracut/dracut.conf.d"); do | |
83 | [[ -e $f ]] && . "$f" | |
84 | done | |
85 | ||
86 | [[ $dracut_rescue_image != "yes" ]] && exit 0 | |
87 | ||
88 | [[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS" | |
89 | ||
90 | if ! cp --reflink=auto "$KERNEL_IMAGE" "$BOOT_DIR_ABS/$KERNEL"; then | |
91 | echo "Can't copy '$KERNEL_IMAGE to '$BOOT_DIR_ABS/$KERNEL'!" >&2 | |
92 | fi | |
93 | ||
94 | if [[ ! -f "$BOOT_DIR_ABS/$INITRD" ]]; then | |
95 | dracut -f --no-hostonly -a "rescue" "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION" | |
96 | ((ret+=$?)) | |
97 | fi | |
98 | ||
99 | if [[ "${BOOT_DIR_ABS}" != "/boot" ]]; then | |
100 | { | |
101 | echo "title $PRETTY_NAME - Rescue Image" | |
102 | echo "version $KERNEL_VERSION" | |
103 | echo "machine-id $MACHINE_ID" | |
104 | echo "options ${BOOT_OPTIONS[@]} rd.auto=1" | |
105 | echo "linux $BOOT_DIR/linux" | |
106 | echo "initrd $BOOT_DIR/initrd" | |
107 | } > $LOADER_ENTRY | |
108 | else | |
109 | cp -aT "${KERNEL_IMAGE%/*}/bls.conf" $LOADER_ENTRY | |
110 | sed -i 's/'$KERNEL_VERSION'/0-rescue-'${MACHINE_ID}'/' $LOADER_ENTRY | |
111 | fi | |
112 | ||
113 | ((ret+=$?)) | |
114 | ;; | |
115 | ||
116 | remove) | |
117 | exit 0 | |
118 | ;; | |
119 | ||
120 | *) | |
121 | usage | |
122 | ret=1;; | |
123 | esac | |
124 | ||
125 | exit $ret |