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() { | |
4357bb11 JB |
32 | echo -e -n " ${BOLD}${BLUE}*${NORM} Creating and mounting tmpfs... " |
33 | mkdir /.tmpfs | |
34 | mount -t tmpfs tmpfs /.tmpfs | |
35 | checkReturn | |
36 | ||
1d7b9c8a | 37 | echo -e " ${BOLD}${BLUE}*${NORM} Searching for the CRUX media..." |
4357bb11 | 38 | mkdir -p /.tmpfs/.media |
1d7b9c8a | 39 | CRUXMEDIA="" |
4357bb11 | 40 | CDROM_DEVICES="`grep 'drive name:' /proc/sys/dev/cdrom/info | awk '{print $3 }'`" |
1d7b9c8a JB |
41 | MMC_DEVICES="`grep -E 'mmcblk' /proc/partitions | awk '{ print $4 }'`" |
42 | BLOCK_DEVICES="`grep -E '[sh]d' /proc/partitions | awk '{ print $4 }'`" | |
4357bb11 | 43 | for DEV in $CDROM_DEVICES $MMC_DEVICES $BLOCK_DEVICES |
1d7b9c8a JB |
44 | do |
45 | DEV="/dev/$DEV" | |
4357bb11 | 46 | mount -r $DEV /.tmpfs/.media 2> /dev/null |
1d7b9c8a | 47 | if [ $? -eq 0 ] |
4357bb11 | 48 | then |
1d7b9c8a | 49 | echo -e -n " ${BOLD}${GREEN}*${NORM} Found media on $DEV" |
4357bb11 | 50 | if [ -e /.tmpfs/.media/crux-media ] |
1d7b9c8a JB |
51 | then |
52 | echo ", CRUX media." | |
53 | CRUXMEDIA=$DEV | |
4357bb11 | 54 | #ln -s $DEV /dev/media |
1d7b9c8a JB |
55 | break |
56 | else | |
57 | echo ", but it's not the CRUX media." | |
4357bb11 | 58 | umount /.tmpfs/.media |
1d7b9c8a JB |
59 | fi |
60 | else | |
61 | echo -e " ${BOLD}${YELLOW}*${NORM} No media found on $DEV." | |
62 | fi | |
63 | done | |
be3fa5e6 | 64 | |
1d7b9c8a | 65 | # check if the media was mounted properly. if not, spawn a shell |
4357bb11 | 66 | if [ ! -e /.tmpfs/.media/crux-media ] |
1d7b9c8a JB |
67 | then |
68 | echo | |
69 | echo -e " ${BOLD}${RED}*${NORM} The CRUX media was not properly mounted!" | |
70 | echo " Spawning a shell for you to attempt to fix this problem. If" | |
71 | echo " you are able to find the correct device, mount it at" | |
4357bb11 | 72 | echo " /.tmpfs/.media and then log out of this shell to continue." |
1d7b9c8a JB |
73 | echo " If you are NOT able to fix the problem, installation will" |
74 | echo " not be possible." | |
75 | echo | |
76 | /bin/sh | |
77 | fi | |
be3fa5e6 | 78 | |
1d7b9c8a | 79 | # check again and stop if it's still not there |
4357bb11 | 80 | if [ ! -e /.tmpfs/.media/crux-media ] |
1d7b9c8a JB |
81 | then |
82 | echo | |
83 | echo -e " ${BOLD}${RED}*${NORM} The CRUX media still appears not to be" | |
84 | echo " found and installation will not continue." | |
85 | echo | |
4357bb11 JB |
86 | sleep 99999 |
87 | exit 1 | |
1d7b9c8a | 88 | fi |
4357bb11 JB |
89 | |
90 | echo -e " ${BOLD}${BLUE}*${NORM} Populating root filesystem..." | |
91 | mkdir -p /newroot | |
92 | echo -e -n " ${BOLD}${BLUE}*${NORM} Mounting new root filesystem... " | |
93 | mount -t tmpfs tmpfs /newroot | |
94 | checkReturn | |
95 | echo -e -n " ${BOLD}${BLUE}*${NORM} Copying files from rootfs.tar.xz... " | |
96 | tar -xpf /.tmpfs/.media/rootfs.tar.xz -C /newroot | |
97 | checkReturn | |
98 | echo -e -n " ${BOLD}${BLUE}*${NORM} Copying devices from rootfs... " | |
99 | cp -af /dev/* /newroot/dev | |
100 | checkReturn | |
101 | mkdir -p /newroot/dev/pts /newroot/media | |
102 | ||
103 | # the media gets unmounted here and remounted after switch_root | |
104 | umount /.tmpfs/.media | |
105 | rmdir /.tmpfs/.media | |
106 | sed -i -e "s,#CRUXMEDIA#,${CRUXMEDIA}," /newroot/etc/fstab | |
107 | ||
108 | echo -e -n " ${BOLD}${BLUE}*${NORM} Unmounting tmpfs... " | |
109 | umount /.tmpfs | |
110 | checkReturn | |
111 | rmdir /.tmpfs | |
1d7b9c8a JB |
112 | } |
113 | ||
55f11ffe JB |
114 | /bin/busybox --install -s /bin |
115 | ||
1d7b9c8a JB |
116 | # |
117 | # main script | |
118 | # | |
be3fa5e6 | 119 | |
1d7b9c8a JB |
120 | echo "" |
121 | echo -e "${BOLD}CRUX-ARM 2.7.1 - ${BLUE}http://crux-arm.nu/${NORM}" | |
122 | echo "" | |
be3fa5e6 | 123 | |
1d7b9c8a JB |
124 | exec >/dev/console </dev/console 2>&1 |
125 | ||
55f11ffe JB |
126 | echo -e -n " ${BOLD}${BLUE}*${NORM} Mounting " |
127 | echo -e -n "${BOLD}${GREEN}/proc${NORM}" | |
128 | mount -t proc proc /proc | |
129 | ||
130 | PRINTK="`cat /proc/sys/kernel/printk`" | |
131 | echo "0" > /proc/sys/kernel/printk | |
132 | ||
133 | echo -e ", ${BOLD}${GREEN}/sys${NORM}." | |
134 | mount -t sysfs sysfs /sys | |
1d7b9c8a JB |
135 | |
136 | echo -e -n " ${BOLD}${BLUE}*${NORM} Populating /dev via mdev... " | |
137 | mdev -s | |
138 | checkReturn | |
139 | ||
140 | echo -e -n " ${BOLD}${BLUE}*${NORM} Registering mdev as hotplug agent... " | |
be3fa5e6 | 141 | echo "/bin/mdev" > /proc/sys/kernel/hotplug |
1d7b9c8a JB |
142 | checkReturn |
143 | ||
4357bb11 JB |
144 | if [ -d /lib/modules ] |
145 | then | |
146 | echo -e -n " ${BOLD}${BLUE}*${NORM} Loading modules... " | |
147 | # TODO | |
148 | else | |
149 | echo -e " ${BOLD}${YELLOW}*${NORM} No modules were found in the initial RAM filesystem." | |
150 | fi | |
be3fa5e6 | 151 | |
55f11ffe JB |
152 | grep -q "devicetimeout=*" /proc/cmdline |
153 | if [ $? -eq 0 ] | |
154 | then | |
155 | for opt in `cat /proc/cmdline` | |
156 | do | |
157 | echo "$opt" | grep -q "devicetimeout=" | |
158 | if [ $? -eq 0 ] | |
159 | then | |
160 | DEVTIMEOUT=`echo $opt | cut -d'=' -f2` | |
161 | fi | |
162 | done | |
163 | else | |
164 | DEVTIMEOUT=10 | |
165 | fi | |
166 | echo -e " ${BOLD}${BLUE}*${NORM} Waiting $DEVTIMEOUT seconds for devices to settle..." | |
167 | sleep $DEVTIMEOUT | |
168 | ||
169 | # if root=/dev/XXX was specified on the command line, use that as the new root | |
170 | # instead of searching for the media and using it. if it fails, fall back to the media | |
171 | grep -q "root=/dev/*" /proc/cmdline | |
172 | if [ $? -eq 0 ] | |
173 | then | |
174 | for opt in `cat /proc/cmdline` | |
175 | do | |
176 | echo "$opt" | grep -q "root=" | |
177 | if [ $? -eq 0 ] | |
178 | then | |
179 | ROOTDEV=`echo $opt | cut -d'=' -f2` | |
180 | fi | |
181 | done | |
182 | mkdir -p /newroot | |
183 | # check the specified root device to see if it has an init | |
184 | mount $ROOTDEV /newroot | |
185 | if [ $? -ne 0 ] | |
186 | then | |
187 | echo -e " ${BOLD}${RED}*${NORM} Unable to mount the specified root device! Falling back to the live media." | |
188 | find_and_mount_media | |
189 | else | |
190 | if [ -x /newroot/sbin/init ] | |
191 | then | |
192 | echo -e " ${BOLD}${BLUE}*${NORM} Mounted root device $ROOTDEV." | |
193 | else | |
194 | echo -e " ${BOLD}${RED}*${NORM} The specified root device ($ROOTDEV) does not appear to be usable! Falling back to the live media." | |
195 | umount /newroot | |
196 | find_and_mount_media | |
197 | fi | |
198 | fi | |
199 | else | |
200 | find_and_mount_media | |
201 | fi | |
202 | ||
203 | echo -e "${BOLD}${BLUE}*${NORM} Switching root.\n" | |
204 | echo "$PRINTK" > /proc/sys/kernel/printk | |
205 | echo > /proc/sys/kernel/hotplug | |
206 | umount /sys | |
207 | umount /proc | |
208 | exec /bin/switch_root /newroot /sbin/init | |
209 | ||
210 | echo "Something's broken, here's a shell." | |
211 | exec /bin/sh | |
be3fa5e6 JB |
212 | |
213 | # End of file |