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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
#!/bin/sh
# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# void single_user()
#
# Drop to a shell, remount / ro, and then reboot
#
single_user() {
if [ "${RC_SYS}" = "VPS" ] ; then
einfo "Halting"
halt -f
return
fi
sulogin ${CONSOLE}
einfo "Unmounting filesystems"
if [ -c /dev/null ] ; then
mount -a -o remount,ro 2>/dev/null
else
mount -a -o remount,ro
fi
einfo "Rebooting"
reboot -f
}
# This basically mounts $svcdir as a ramdisk, but preserving its content
# which allows us to run depscan.sh
# The tricky part is finding something our kernel supports
# tmpfs and ramfs are easy, so force one or the other
mount_svcdir() {
local fs= fsopts="-o rw,noexec,nodev,nosuid" devdir="none" devtmp="none" x=
local svcsize=${svcsize:-1024}
local mntcmd=$(fstabinfo --mountcmd "${RC_SVCDIR}")
if grep -Eq "[[:space:]]+tmpfs$" /proc/filesystems ; then
fs="tmpfs"
fsopts="${fsopts},mode=0755,size=${svcsize}k"
elif grep -Eq "[[:space:]]+ramfs$" /proc/filesystems ; then
fs="ramfs"
# ramfs has no special options
elif [ -e /dev/ram0 -a -e /dev/ram1 ] \
&& grep -Eq "[[:space:]]+ext2$" /proc/filesystems ; then
devdir="/dev/ram0"
devtmp="/dev/ram1"
fs="ext2"
for x in ${devdir} ${devtmp} ; do
try dd if=/dev/zero of="${x}" bs=1k count="${svcsize}"
try mkfs -t "${fs}" -i 1024 -vm0 "${x}" "${svcsize}"
done
else
echo
eerror "Gentoo Linux requires tmpfs, ramfs or 2 ramdisks + ext2"
eerror "compiled into the kernel"
echo
single_user
fi
# If we have no entry in fstab for $svcdir, provide our own
if [ -z "${mntcmd}" ] ; then
mntcmd="-t ${fs} ${fsopts} ${devdir} ${RC_SVCDIR}"
fi
local dotmp=false
if [ -e "${RC_SVCDIR}"/deptree ] ; then
dotmp=true
try mount -n -t "${fs}" -o rw "${devtmp}" "${RC_LIBDIR}"/tmp
cp -p "${RC_SVCDIR}"/deptree "${RC_SVCDIR}"/depconfig \
"${RC_SVCDIR}"/nettree "${RC_LIBDIR}"/tmp 2>/dev/null
fi
try mount -n ${mntcmd}
if ${dotmp} ; then
cp -p "${RC_LIBDIR}"/tmp/deptree "${RC_LIBDIR}"/tmp/depconfig \
"${RC_LIBDIR}"/tmp/nettree "${RC_SVCDIR}" 2>/dev/null
try umount -n "${RC_LIBDIR}"/tmp
fi
}
_RC_GET_KV_CACHE=""
get_KV() {
[ -z "${_RC_GET_KV_CACHE}" ] \
&& _RC_GET_KV_CACHE="$(uname -r)"
echo "$(KV_to_int "${_RC_GET_KV_CACHE}")"
return $?
}
. /etc/init.d/functions.sh
. "${RC_LIBDIR}"/sh/init-functions.sh
. "${RC_LIBDIR}"/sh/rc-functions.sh
# Set the console loglevel to 1 for a cleaner boot
# the logger should anyhow dump the ring-0 buffer at start to the
# logs, and that with dmesg can be used to check for problems
if [ -n "${RC_DMESG_LEVEL}" -a "${RC_SYS}" != "VPS" ] ; then
dmesg -n "${RC_DMESG_LEVEL}"
fi
check_statedir /proc
# By default VServer already has /proc mounted, but OpenVZ does not!
# However, some of our users have an old proc image in /proc
# NFC how they managed that, but the end result means we have to test if
# /proc actually works or not. We to this by comparing uptime to one a second
# ago
mountproc=true
if [ -e /proc/uptime ] ; then
up="$(cat /proc/uptime)"
sleep 1
if [ "${up}" = "$(cat /proc/uptime)" ] ; then
eerror "You have cruft in /proc that should be deleted"
else
einfo "/proc is already mounted, skipping"
mountproc=false
fi
unset up
fi
if ${mountproc} ; then
procfs="proc"
[ "${RC_UNAME}" = "GNU/kFreeBSD" ] && proc="linprocfs"
ebegin "Mounting ${procfs} at /proc"
mntcmd="$(fstabinfo --mountcmd /proc)"
try mount -n ${mntcmd:--t ${procfs} -o noexec,nosuid,nodev proc /proc}
eend $?
fi
unset mountproc
# Read off the kernel commandline to see if there's any special settings
# especially check to see if we need to set the CDBOOT environment variable
# Note: /proc MUST be mounted
if [ -r /sbin/livecd-functions.sh ] ; then
. /sbin/livecd-functions.sh
livecd_read_commandline
fi
[ "$(KV_to_int "$(uname -r)")" -ge "$(KV_to_int "2.6.0")" ]
K26=$?
if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${RC_SYS}" != "VPS" -a "${K26}" = "0" ] ; then
if [ -d /sys ] ; then
ebegin "Mounting sysfs at /sys"
mntcmd="$(fstabinfo --mountcmd /sys)"
try mount -n ${mntcmd:--t sysfs -o noexec,nosuid,nodev sysfs /sys}
eend $?
else
ewarn "No /sys to mount sysfs needed in 2.6 and later kernels!"
fi
fi
check_statedir /dev
devfs_mounted=
if [ -e /dev/.devfsd ] ; then
# make sure devfs is actually mounted and it isnt a bogus file
devfs_mounted=$(mountinfo --fstype-regex devfs)
fi
# Try to figure out how the user wants /dev handled
# - check $RC_DEVICES from /etc/conf.d/rc
# - check boot parameters
# - make sure the required binaries exist
# - make sure the kernel has support
if [ "${RC_DEVICES}" = "static" -o "${RC_SYS}" = "VPS" ] ; then
ebegin "Using existing device nodes in /dev"
eend 0
elif [ "${RC_UNAME}" = "GNU/kFreeBSD" ] ; then
ebegin "Using kFreeBSD devfs in /dev"
eend 0
else
case ${RC_DEVICES} in
devfs) managers="devfs udev mdev";;
udev) managers="udev devfs mdev";;
mdev) managers="mdev udev devfs";;
auto|*) managers="udev devfs mdev";;
esac
for m in ${managers} ; do
# Check common manager prerequisites and kernel params
if get_bootparam "no${m}" || ! has_addon ${m}-start ; then
continue
fi
# Check specific manager prerequisites
case ${m} in
udev|mdev)
if [ -n "${devfs_mounted}" -o "${K26}" != 0 ] ; then
continue
fi
;;
devfs)
grep -Eqs "[[:space:]]+devfs$" /proc/filesystems || continue
;;
esac
# Let's see if we can get this puppy rolling
start_addon ${m} && break
done
fi
# From linux-2.6 we need to mount /dev/pts again ...
if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${K26}" = "0" ] ; then
if grep -Eq "[[:space:]]+devpts$" /proc/filesystems && \
! mountinfo /dev/pts > /dev/null ; then
if [ ! -d /dev/pts ] && \
[ "${devfs}" = "yes" -o "${udev}" = "yes" ] ; then
# Make sure we have /dev/pts
mkdir -p /dev/pts >/dev/null 2>/dev/null || \
ewarn "Could not create /dev/pts!"
fi
if [ -d /dev/pts ] ; then
ebegin "Mounting devpts at /dev/pts"
mntcmd="$(fstabinfo --mountcmd /dev/pts)"
try mount -n ${mntcmd:--t devpts -o gid=5,mode=0620,noexec,nosuid devpts /dev/pts}
eend $?
fi
fi
fi
# If booting off CD, we want to update inittab before setting the runlevel
if [ -f /sbin/livecd-functions.sh -a -n "${CDBOOT}" ] ; then
ebegin "Updating inittab"
livecd_fix_inittab
eend $?
/sbin/telinit q &>/dev/null
fi
. "${RC_LIBDIR}"/sh/init-common-post.sh
# vim: set ts=4 :
|
