Commit | Line | Data |
---|---|---|
be3fa5e6 | 1 | #!/bin/sh |
1d7b9c8a | 2 | |
be3fa5e6 | 3 | # |
1d7b9c8a | 4 | # initramfs /init (busybox ash) |
be3fa5e6 JB |
5 | # |
6 | ||
1d7b9c8a JB |
7 | # color codes and some predefined texts |
8 | BOLD="\033[1m" | |
9 | NORM="\033[0m" | |
10 | RED="\033[31m" | |
11 | GREEN="\033[32m" | |
12 | YELLOW="\033[33m" | |
13 | BLUE="\033[34m" | |
14 | OK="${BOLD}${GREEN}OK${NORM}" | |
15 | FAILED="${BOLD}${RED}FAILED${NORM}" | |
16 | ||
17 | # helper functions | |
18 | ||
19 | # check an exit value and print a colored status | |
20 | checkReturn() { | |
21 | if [ $? -ne 0 ] | |
22 | then | |
23 | echo -e $FAILED | |
24 | else | |
25 | echo -e $OK | |
26 | fi | |
27 | } | |
be3fa5e6 | 28 | |
1d7b9c8a JB |
29 | # search for and mount the crux media, populate a tmpfs from it, |
30 | # and prepare /newroot for switch_root at the end of the script | |
31 | find_and_mount_media() { | |
32 | echo -e " ${BOLD}${BLUE}*${NORM} Searching for the CRUX media..." | |
33 | mkdir -p /media | |
34 | CRUXMEDIA="" | |
35 | MMC_DEVICES="`grep -E 'mmcblk' /proc/partitions | awk '{ print $4 }'`" | |
36 | BLOCK_DEVICES="`grep -E '[sh]d' /proc/partitions | awk '{ print $4 }'`" | |
37 | for DEV in $MMC_DEVICES $BLOCK_DEVICES | |
38 | do | |
39 | DEV="/dev/$DEV" | |
40 | mount -r $DEV /media 2> /dev/null | |
41 | if [ $? -eq 0 ] | |
42 | then | |
43 | echo -e -n " ${BOLD}${GREEN}*${NORM} Found media on $DEV" | |
44 | if [ -e /media/crux-media ] | |
45 | then | |
46 | echo ", CRUX media." | |
47 | CRUXMEDIA=$DEV | |
48 | ln -s $DEV /dev/media | |
49 | break | |
50 | else | |
51 | echo ", but it's not the CRUX media." | |
52 | umount /media | |
53 | fi | |
54 | else | |
55 | echo -e " ${BOLD}${YELLOW}*${NORM} No media found on $DEV." | |
56 | fi | |
57 | done | |
be3fa5e6 | 58 | |
1d7b9c8a JB |
59 | # check if the media was mounted properly. if not, spawn a shell |
60 | if [ ! -e /media/crux-media ] | |
61 | then | |
62 | echo | |
63 | echo -e " ${BOLD}${RED}*${NORM} The CRUX media was not properly mounted!" | |
64 | echo " Spawning a shell for you to attempt to fix this problem. If" | |
65 | echo " you are able to find the correct device, mount it at" | |
66 | echo " /media and then log out of this shell to continue." | |
67 | echo " If you are NOT able to fix the problem, installation will" | |
68 | echo " not be possible." | |
69 | echo | |
70 | /bin/sh | |
71 | fi | |
be3fa5e6 | 72 | |
1d7b9c8a JB |
73 | # check again and stop if it's still not there |
74 | if [ ! -e /media/crux-media ] | |
75 | then | |
76 | echo | |
77 | echo -e " ${BOLD}${RED}*${NORM} The CRUX media still appears not to be" | |
78 | echo " found and installation will not continue." | |
79 | echo | |
80 | else | |
81 | # configure modules | |
82 | MODULES="`find /media/crux/kernel -type f -name 'modules-*.tar.*'`" | |
83 | if [ ! -z "$MODULES" ]; then | |
84 | tar -C /tmp -xf $MODULES | |
85 | cd /lib && ln -s /tmp/lib/* . | |
86 | depmod | |
87 | fi | |
88 | # configure pkgutils | |
89 | PKGUTILS="`find /media/crux/core -type f -name 'pkgutils#*.pkg.tar.*'`" | |
90 | if [ ! -z "$PKGUTILS" ]; then | |
91 | tar -C /tmp -xf $PKGUTILS | |
92 | cd /usr/bin && ln -s /tmp/usr/bin/* . | |
93 | cd /etc && ln -s /tmp/etc/* . | |
94 | fi | |
95 | fi | |
96 | } | |
97 | ||
55f11ffe JB |
98 | /bin/busybox --install -s /bin |
99 | ||
1d7b9c8a JB |
100 | # |
101 | # main script | |
102 | # | |
be3fa5e6 | 103 | |
1d7b9c8a JB |
104 | echo "" |
105 | echo -e "${BOLD}CRUX-ARM 2.7.1 - ${BLUE}http://crux-arm.nu/${NORM}" | |
106 | echo "" | |
be3fa5e6 | 107 | |
1d7b9c8a JB |
108 | exec >/dev/console </dev/console 2>&1 |
109 | ||
55f11ffe JB |
110 | echo -e -n " ${BOLD}${BLUE}*${NORM} Mounting " |
111 | echo -e -n "${BOLD}${GREEN}/proc${NORM}" | |
112 | mount -t proc proc /proc | |
113 | ||
114 | PRINTK="`cat /proc/sys/kernel/printk`" | |
115 | echo "0" > /proc/sys/kernel/printk | |
116 | ||
117 | echo -e ", ${BOLD}${GREEN}/sys${NORM}." | |
118 | mount -t sysfs sysfs /sys | |
1d7b9c8a JB |
119 | |
120 | echo -e -n " ${BOLD}${BLUE}*${NORM} Populating /dev via mdev... " | |
121 | mdev -s | |
122 | checkReturn | |
123 | ||
124 | echo -e -n " ${BOLD}${BLUE}*${NORM} Registering mdev as hotplug agent... " | |
be3fa5e6 | 125 | echo "/bin/mdev" > /proc/sys/kernel/hotplug |
1d7b9c8a JB |
126 | checkReturn |
127 | ||
128 | echo -e -n " ${BOLD}${BLUE}*${NORM} Creating and mounting /dev/pts... " | |
129 | mkdir /dev/pts | |
130 | mount -t devpts devpts /dev/pts | |
131 | checkReturn | |
132 | ||
133 | echo -e -n " ${BOLD}${BLUE}*${NORM} Starting kernel log daemon... " | |
134 | klogd | |
135 | checkReturn | |
be3fa5e6 | 136 | |
1d7b9c8a JB |
137 | echo -e -n " ${BOLD}${BLUE}*${NORM} Setting hostname... " |
138 | hostname crux | |
139 | checkReturn | |
be3fa5e6 | 140 | |
1d7b9c8a JB |
141 | echo -e -n " ${BOLD}${BLUE}*${NORM} Loading network loopback device... " |
142 | ip addr add 127.0.0.1/8 dev lo broadcast + scope host && \ | |
143 | ip link set lo up && \ | |
144 | echo "127.0.0.1 localhost crux" > /etc/hosts | |
145 | checkReturn | |
be3fa5e6 | 146 | |
1d7b9c8a JB |
147 | echo -e -n " ${BOLD}${BLUE}*${NORM} Saving boot messages... " |
148 | dmesg > /var/log/boot | |
149 | checkReturn | |
be3fa5e6 | 150 | |
55f11ffe JB |
151 | grep -q "devicetimeout=*" /proc/cmdline |
152 | if [ $? -eq 0 ] | |
153 | then | |
154 | for opt in `cat /proc/cmdline` | |
155 | do | |
156 | echo "$opt" | grep -q "devicetimeout=" | |
157 | if [ $? -eq 0 ] | |
158 | then | |
159 | DEVTIMEOUT=`echo $opt | cut -d'=' -f2` | |
160 | fi | |
161 | done | |
162 | else | |
163 | DEVTIMEOUT=10 | |
164 | fi | |
165 | echo -e " ${BOLD}${BLUE}*${NORM} Waiting $DEVTIMEOUT seconds for devices to settle..." | |
166 | sleep $DEVTIMEOUT | |
167 | ||
168 | # if root=/dev/XXX was specified on the command line, use that as the new root | |
169 | # instead of searching for the media and using it. if it fails, fall back to the media | |
170 | grep -q "root=/dev/*" /proc/cmdline | |
171 | if [ $? -eq 0 ] | |
172 | then | |
173 | for opt in `cat /proc/cmdline` | |
174 | do | |
175 | echo "$opt" | grep -q "root=" | |
176 | if [ $? -eq 0 ] | |
177 | then | |
178 | ROOTDEV=`echo $opt | cut -d'=' -f2` | |
179 | fi | |
180 | done | |
181 | mkdir -p /newroot | |
182 | # check the specified root device to see if it has an init | |
183 | mount $ROOTDEV /newroot | |
184 | if [ $? -ne 0 ] | |
185 | then | |
186 | echo -e " ${BOLD}${RED}*${NORM} Unable to mount the specified root device! Falling back to the live media." | |
187 | find_and_mount_media | |
188 | else | |
189 | if [ -x /newroot/sbin/init ] | |
190 | then | |
191 | echo -e " ${BOLD}${BLUE}*${NORM} Mounted root device $ROOTDEV." | |
192 | else | |
193 | echo -e " ${BOLD}${RED}*${NORM} The specified root device ($ROOTDEV) does not appear to be usable! Falling back to the live media." | |
194 | umount /newroot | |
195 | find_and_mount_media | |
196 | fi | |
197 | fi | |
198 | else | |
199 | find_and_mount_media | |
200 | fi | |
201 | ||
202 | echo -e "${BOLD}${BLUE}*${NORM} Switching root.\n" | |
203 | echo "$PRINTK" > /proc/sys/kernel/printk | |
204 | echo > /proc/sys/kernel/hotplug | |
205 | umount /sys | |
206 | umount /proc | |
207 | exec /bin/switch_root /newroot /sbin/init | |
208 | ||
209 | echo "Something's broken, here's a shell." | |
210 | exec /bin/sh | |
be3fa5e6 JB |
211 | |
212 | # End of file |