Contents of /tags/mkinitrd-6_1_3/livecd/linuxrc.sh
Parent Directory | Revision Log
Revision 706 -
(show annotations)
(download)
(as text)
Thu Apr 10 20:16:43 2008 UTC (16 years, 5 months ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/linuxrc.sh
File MIME type: application/x-sh
File size: 4420 byte(s)
Thu Apr 10 20:16:43 2008 UTC (16 years, 5 months ago) by niro
Original Path: trunk/mkinitrd-magellan/livecd/linuxrc.sh
File MIME type: application/x-sh
File size: 4420 byte(s)
-fixes some mounting issues
1 | #!/bin/sh |
2 | # $Header: /home/cvsd/magellan-cvs/magellan-src/mkinitrd-magellan/livecd/linuxrc.sh,v 1.6 2008-04-10 20:16:43 niro Exp $ |
3 | |
4 | # loads given kernel modules |
5 | load_kernel_modules() |
6 | { |
7 | local type="$1" |
8 | local module |
9 | local args |
10 | |
11 | echo -e "-- Loading ${type} modules:" |
12 | ( cat /etc/modules.${type}; echo) | while read module args |
13 | do |
14 | case "${module}" in |
15 | \#*|"") continue ;; |
16 | esac |
17 | |
18 | if [ -e /lib/${module}.ko ] |
19 | then |
20 | insmod -f /lib/${module}.ko ${args} > /dev/null 2>&1 |
21 | [ $? -eq 0 ] && echo -e "-- ${module}" |
22 | fi |
23 | done |
24 | echo |
25 | } |
26 | |
27 | # check_drives $devices $fstype |
28 | check_drives() |
29 | { |
30 | local devices="$1" |
31 | local fs="$2" |
32 | |
33 | for dev in ${devices} |
34 | do |
35 | mount -t ${fs} ${dev} /sysroot/mnt/cdrom >/dev/null 2>&1 |
36 | media_found=$? |
37 | |
38 | # if mount was ok check if cdid exists |
39 | if [ "${media_found}" -eq 0 ] |
40 | then |
41 | [ -e /sysroot/mnt/cdrom/livecdrootfs.sqsh ] && media_id_ok=$? |
42 | umount /sysroot/mnt/cdrom |
43 | |
44 | if [ "${media_id_ok}" -eq 0 ] |
45 | then |
46 | echo -e "Magellan boot device found." |
47 | BOOT_DEVICE="${dev}" |
48 | FSTYPE="${fs}" |
49 | break |
50 | fi |
51 | fi |
52 | done |
53 | } |
54 | |
55 | ## some defaults ## |
56 | DOSCSI=no |
57 | DOUSB=no |
58 | DOSATA=no |
59 | DOFB=no |
60 | DOPATA=no |
61 | FORCED_ROOTFS="" |
62 | |
63 | ## starts here ## |
64 | |
65 | # mount essential filesystems |
66 | mount -t proc proc /proc |
67 | mount -t sysfs sysfs /sys |
68 | |
69 | # silencio |
70 | echo 0 > /proc/sys/kernel/printk |
71 | |
72 | # check command line for params |
73 | for i in $(cat /proc/cmdline) |
74 | do |
75 | case "${i}" in |
76 | doscsi) |
77 | DOSCSI=yes |
78 | ;; |
79 | dousb) |
80 | DOUSB=yes |
81 | ;; |
82 | dosata) |
83 | DOSATA=yes |
84 | ;; |
85 | dofb) |
86 | DOFB=yes |
87 | ;; |
88 | dopata) |
89 | DOPATA=yes |
90 | ;; |
91 | rootfs=*) |
92 | FORCED_ROOTFS="${i#*=}" |
93 | ;; |
94 | esac |
95 | done |
96 | |
97 | # now load all needed modules |
98 | [ "${DOFB}" = "yes" ] && load_kernel_modules "framebuffer" |
99 | load_kernel_modules "generic" |
100 | [ "${DOPATA}" = "yes" ] && load_kernel_modules "pata" |
101 | [ "${DOSCSI}" = "yes" ] && load_kernel_modules "scsi" |
102 | [ "${DOUSB}" = "yes" ] && load_kernel_modules "usb" |
103 | [ "${DOSATA}" = "yes" ] && load_kernel_modules "sata" |
104 | |
105 | # create newroot mount point |
106 | mkdir -p /sysroot |
107 | # fake a new filesystem (also needed with an initramfs!!) |
108 | mount -t tmpfs tmpfs /sysroot |
109 | |
110 | mkdir -p /sysroot/mnt/cdrom |
111 | mkdir -p /sysroot/mnt/cloop |
112 | mkdir -p /sysroot/mnt/magellan |
113 | |
114 | |
115 | # needed for the usbstick, the timeout maybe to short |
116 | if [ "${DOUSB}" = "yes" ]; then |
117 | echo "-- Waiting 8 seconds for possible usb mount ..." |
118 | sleep 8 |
119 | fi |
120 | |
121 | # searching cdrom with cdid |
122 | BOOT_DEVICE="" |
123 | FSTYPE="" |
124 | |
125 | echo "Searching for a boot device ..." |
126 | |
127 | # searching usbstick |
128 | if [ "${DOUSB}" = "yes" ]; then |
129 | ROOTFS="vfat" |
130 | [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}" |
131 | check_drives "/dev/sd*" "${ROOTFS}" |
132 | check_drives "/dev/sg*" "${ROOTFS}" |
133 | fi |
134 | |
135 | # for cdrom_device in $CDROM_LIST (ide) |
136 | ROOTFS="iso9660" |
137 | [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}" |
138 | check_drives "/dev/cdroms/*" "${ROOTFS}" |
139 | check_drives "/dev/hd*" "${ROOTFS}" |
140 | |
141 | # scsi cdroms |
142 | if [ "${DOSCSI}" = "yes" ] || [ "${DOSATA}" = "yes" ]; then |
143 | ROOTFS="iso9660" |
144 | [[ ! -z ${FORCED_ROOTFS} ]] && ROOTFS="${FORCED_ROOTFS}" |
145 | check_drives "/dev/sr*" "${ROOTFS}" |
146 | check_drives "/dev/sg*" "${ROOTFS}" |
147 | check_drives "/dev/scd*" "${ROOTFS}" |
148 | fi |
149 | |
150 | # mount our rootfs from cdrom |
151 | if [ "${BOOT_DEVICE}" = "" ] |
152 | then |
153 | echo "No Magellan boot CD/USBStick found!!!" |
154 | ash |
155 | exit 1 |
156 | else |
157 | echo -e "Booting from: $BOOT_DEVICE ..." |
158 | mount -o ro -t "${FSTYPE}" "${BOOT_DEVICE}" /sysroot/mnt/cdrom >/dev/null 2>&1 |
159 | |
160 | # write our boot_device to /mnt/.bootdev for later use (mtab) |
161 | echo "BOOTDEV=${BOOT_DEVICE}" > /sysroot/.bootdev |
162 | echo "FSTYPE=${FSTYPE}" >> /sysroot/.bootdev |
163 | |
164 | # mount squashfs |
165 | echo -e "Mounting squashfs system image ..." |
166 | echo |
167 | [ ! -e /dev/loop0 ] && mknod /dev/loop0 b 7 0 |
168 | mount -o loop,ro -t squashfs /sysroot/mnt/cdrom/livecdrootfs.sqsh /sysroot/mnt/cloop |
169 | |
170 | # symlinking cloop rootfs to /mnt as newroot |
171 | cd /sysroot |
172 | |
173 | for x in bin sbin lib lib64 boot usr opt |
174 | do |
175 | [ -d mnt/cloop/${x} ] && ln -s mnt/cloop/${x} ${x} |
176 | done |
177 | mkdir -p initrd proc tmp sys var/tmp dev media |
178 | |
179 | # make /sysroot/dev/console & /mnt/dev/null |
180 | [ ! -e /sysroot/dev/console ] && mknod -m 600 /sysroot/dev/console c 5 1 |
181 | [ ! -e /sysroot/dev/null ] && mknod -m 666 /sysroot/dev/null c 1 3 |
182 | |
183 | (cd /sysroot/mnt/cloop; cp -a etc root home var /sysroot) |
184 | |
185 | # ensure the right permissions |
186 | chmod 1777 /sysroot/tmp |
187 | chmod 1777 /sysroot/var/tmp |
188 | fi |
189 | |
190 | cd / |
191 | |
192 | # de-silencio |
193 | echo 3 > /proc/sys/kernel/printk |
194 | |
195 | echo "-- Switching to real sysroot ..." |
196 | umount /sys |
197 | umount /proc |
198 | |
199 | exec run-init /sysroot /sbin/init $@ </sysroot/dev/console >/sysroot/dev/console |