blob: 65b7056bd36243077fb9b79af84fee9d2620c79a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
#!/sbin/openrc-run
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
depend() {
need localmount
}
image_path() {
local x= kver=$(uname -r) karch=$(uname -m)
BOOTPART="${BOOTPART:-/boot}"
KNAME="${KNAME:-bzImage}"
if [ -e "${KNAME}" ]; then
echo "${KNAME}"
return 0
fi
for x in "${KNAME#${BOOTPART}}" vmlinuz \
bzImage-${kver} vmlinuz-${kver} \
kernel-genkernel-${karch}-${kver} \
kernel-${kver} kernel-${karch}; do
if [ -e "${BOOTPART}/${x}" ]; then
echo "${BOOTPART}/${x}"
return 0
fi
done
return 1
}
initrd_path() {
local x= kver=$(uname -r) karch=$(uname -m)
BOOTPART="${BOOTPART:-/boot}"
INITRD="${INITRD:-initrd}"
if [ -e "${INITRD}" ]; then
echo "${INITRD}"
return 0
fi
for x in "${INITRD#${BOOTPART}}" \
initrd.img-${kver} initrd-${kver}.img \
initrd-${kver} initramfs-${kver}.img \
initramfs-genkernel-${karch}-${kver} ; do
if [ -e "${BOOTPART}/${x}" ]; then
echo "${BOOTPART}/${x}"
return 0
fi
done
return 1
}
mount_boot(){
local ret
[ "${DONT_MOUNT_BOOT:-no}" = "no" ] || return 1
grep -q " ${BOOTPART:-/boot} " /proc/mounts && return 1
BOOTPART="${BOOTPART:-/boot}"
ebegin "Mounting ${BOOTPART}"
mount "${BOOTPART}"; ret=$?
eend ${ret}
return ${ret}
}
load_image() {
local ret
if [ "${KNAME}" = "-" ]; then
ebegin "Disabling kexec"
kexec -u; ret=$?
eend ${ret}
return ${ret}
fi
BOOTPART="${BOOTPART:-/boot}"
local img= initrd="$(initrd_path)" mounted=false initrdopt=
if ! img="$(image_path)"; then
if mount_boot; then
if img="$(image_path)"; then
mounted=true
initrd="$(initrd_path)"
else
eerror "No kernel image found in ${BOOTPART}!"
umount "${BOOTPART}"
return 1
fi
else
eerror "No kernel image found in ${BOOTPART}!"
return 1
fi
fi
if [ -n "${INITRD}" ] && \
! [ "${BOOTPART}/${INITRD#${BOOTPART}}" = "${initrd}" ]; then
eerror "Requested initrd: ${INITRD#${BOOTPART}}"
eerror "could not be found"
return 1
fi
[ -n "${ROOTPART}" ] || \
ROOTPART="$(readlink -f "$(sed -n '/^\/[^ ]* \/ / s,^\([^ ]*\).*,\1,p' /proc/mounts)")"
[ -n "${KPARAM}" ] || KEXEC_OPT_ARGS="${KEXEC_OPT_ARGS} --reuse-cmdline"
[ -n "${initrd}" ] && [ -e "${initrd}" ] && initrdopt="--initrd=${initrd}"
local msg=
[ -n "${initrd}" ] && \
msg="with ${initrd}"
einfo "Using kernel image ${img} ${msg} for kexec"
ebegin "Setting kexec with ${KEXEC_OPT_ARGS} -l ${img} root=${ROOTPART} ${KPARAM} ${initrdopt}"
kexec ${KEXEC_OPT_ARGS} -l "${img}" --append="root=${ROOTPART} ${KPARAM}" ${initrdopt}
local res=$?
${mounted} && umount "${BOOTPART}"
eend ${res}
return ${res}
}
start() {
if [ "${LOAD_DURING_SHUTDOWN:-yes}" = "yes" ]; then
local ret=0
BOOTPART="${BOOTPART:-/boot}"
if mount_boot; then
mounted=true
fi
if ! image_path > /dev/null; then
ewarn "Cannot find kernel image!"
ewarn "Please make sure a valid kernel image is present before reboot."
return 0
fi
if [ -n "${mounted}" ]; then
ebegin "Unmounting ${BOOTPART}"
umount "${BOOTPART}"; ret=$?
eend ${ret}
fi
return ${ret}
else
ebegin "Configuring kexec"
load_image
eend $?
fi
}
stop() {
if ! yesno $RC_REBOOT; then
einfo "Not rebooting, so disabling"
kexec -u
return 0
fi
if [ -f /nokexec ]; then
einfo "Not using kexec during reboot"
rm -f /nokexec
kexec -u
return 0
fi
[ "${LOAD_DURING_SHUTDOWN:-yes}" != "yes" ] && return 0
ebegin "Configuring kexec"
load_image
eend $?
}
|
GitWeb