blob: 2beb59760527512626ccc6bc6d9f2e9aa244224b (
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
|
#!/bin/sh
echo "Loading, please wait..."
mkdir /sys
mkdir /proc
mkdir /tmp
mkdir -p /var/lock
mount -t sysfs none /sys
mount -t proc none /proc
# Note that this only becomes /dev on the real filesystem if udev's scripts
# are used; which they will be, but it's worth pointing out
tmpfs_size="10M"
if [ -e /etc/udev/udev.conf ]; then
. /etc/udev/udev.conf
fi
mount -t tmpfs -o size=$tmpfs_size,mode=0755 udev /dev
> /dev/.initramfs-tools
mkdir /dev/.initramfs
mknod /dev/console c 5 1
mknod /dev/null c 1 3
# Export the dpkg architecture
export DPKG_ARCH=
. /conf/arch.conf
# Export it for root hardcoding
export ROOT=
# Bring in the main config
. /conf/initramfs.conf
for i in conf/conf.d/*; do
[ -f ${i} ] && . ${i}
done
. /scripts/functions
# Parse command line options
export break=
export init=/sbin/init
export quiet=n
export readonly=y
export rootmnt=/root
export debug=
export cryptopts=${CRYPTOPTS}
for x in $(cat /proc/cmdline); do
case $x in
init=*)
init=${x#init=}
;;
root=*)
ROOT=${x#root=}
case $ROOT in
LABEL=*)
ROOT="/dev/disk/by-label/${ROOT#LABEL=}"
;;
UUID=*)
ROOT="/dev/disk/by-uuid/${ROOT#UUID=}"
;;
esac
;;
rootflags=*)
ROOTFLAGS="-o ${x#rootflags=}"
;;
cryptopts=*)
cryptopts="${x#cryptopts=}"
;;
nfsroot=*)
NFSROOT="${x#nfsroot=}"
;;
nfsopts=*)
NFSOPTS="-o ${x#nfsopts=}"
;;
boot=*)
BOOT=${x#boot=}
;;
resume=*)
RESUME=${x#resume=}
;;
noresume)
NORESUME=y
;;
quiet)
quiet=y
;;
ro)
readonly=y
;;
rw)
readonly=n
;;
debug)
debug=y
exec >/tmp/initramfs.debug 2>&1
set -x
;;
break=*)
break=${x#break=}
;;
break)
break=premount
;;
esac
done
if [ -z ${NORESUME} ]; then
export resume=${RESUME}
fi
depmod -a
maybe_break top
# Don't do log messages here to avoid confusing usplash
run_scripts /scripts/init-top
maybe_break modules
log_begin_msg "Loading essential drivers..."
load_modules
log_end_msg
maybe_break premount
log_begin_msg "Running /scripts/init-premount"
run_scripts /scripts/init-premount
log_end_msg
maybe_break mount
log_begin_msg "Mounting root file system..."
. /scripts/${BOOT}
parse_numeric ${ROOT}
mountroot
log_end_msg
maybe_break bottom
[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/init-bottom"
run_scripts /scripts/init-bottom
[ "$quiet" != "y" ] && log_end_msg
# Move virtual filesystems over to the real filesystem
mount -n -o move /sys ${rootmnt}/sys
mount -n -o move /proc ${rootmnt}/proc
while [ ! -x ${rootmnt}${init} ]; do
panic "Target filesystem doesn't have ${init}"
done
# Confuses /etc/init.d/rc
if [ -n ${debug} ]; then
unset debug
fi
# Chain to real filesystem
maybe_break init
exec run-init ${rootmnt} ${init} "$@" <${rootmnt}/dev/console >${rootmnt}/dev/console
|