source: MondoRescue/branches/2.2.5/mindi/rootfs/sbin/init@ 1717

Last change on this file since 1717 was 1717, checked in by Bruno Cornec, 17 years ago

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1#!/bin/sh
2#
3# $Id: init 1717 2007-10-28 01:08:43Z bruno $
4#
5# init script launched during the restore process
6#------------------------------------------------------------
7
8
9CaughtSoftReset() {
10 trap SIGTERM
11 reboot
12}
13
14
15ConfigureLoggingDaemons() {
16 echo -en "Running klogd..."
17 klogd -c 2 > /dev/null 2> /dev/null
18 echo -en "Done.\nRunning syslogd..."
19 syslogd > /dev/null 2> /dev/null
20 echo "Done."
21 LogIt "klogd and syslogd have been started."
22}
23
24
25
26CopyBootDevEntry() {
27 local outfile devfile
28 devfile=/dev/boot_device
29 outfile=`cat /BOOTLOADER.DEVICE 2> /dev/null`
30 [ ! "$outfile" ] && return 0
31 echo -en "Copying boot device to $outfile..."
32 if [ -e "$outfile" ] ; then
33 echo "OK."
34 return 0
35 fi
36 mkdir -p $outfile
37 rmdir $outfile
38 cp -pRdf $devfile $outfile
39 if [ "$?" -ne "0" ] ; then
40 echo "Failed."
41 return 1
42 else
43 echo "OK."
44 return 0
45 fi
46}
47
48
49
50Die() {
51 LogIt "Fatal error! $1" 1
52 exit 1
53}
54
55
56
57ExtractDevTarballs() {
58 cd /
59 for fname in ataraid.tgz ida.tgz i2o.tgz rd.tgz raw.tgz cciss.tgz nst.tgz dm.tgz vc.tgz ; do
60 if [ ! -e "/$fname" ] ; then
61 LogIt "/$fname not found; cannot extract to /." 1
62 else
63 echo -en "\rExtracting /$fname... "
64 tar -zxf /$fname || LogIt "Error occurred while extracting /$fname"
65 fi
66 done
67 echo -en "\r"
68 LogIt "Extracted additional /dev entries OK. " 1
69}
70
71
72
73LaunchTerminals() {
74 openvt 2 /bin/sh
75 openvt 3 /bin/sh
76 openvt 4 /bin/sh
77 openvt 5 /bin/sh
78 openvt 6 /bin/sh
79 openvt 7 /bin/sh /sbin/wait-for-petris
80}
81
82
83LoadKeymap() {
84 local fname
85 fname=`cat /tmp/KEYMAP-LIVES-HERE 2> /dev/null`
86 [ "$fname" = "" ] && return
87 if which loadkeys > /dev/null 2> /dev/null ; then
88 loadkeys $fname
89# loadkmap != loadkeys
90# elif which loadkmap > /dev/null 2> /dev/null ; then
91# loadkmap < $fname
92 else
93 LogIt "Using default keyboard map." 1
94 fi
95}
96
97
98UntarTapeStuff() {
99 local old_pwd res
100 old_pwd=`pwd`
101 cd $GROOVY
102 [ "$1" != "" ] && tapedev=$1
103 [ ! "$tapedev" ] && tapedev=`grep media-dev /tmp/mondo-restore.cfg | tr -s ' ' ' ' | cut -d' ' -f2`
104# tar -zxf $tapedev
105 dd if=$tapedev bs=32k count=1024 | tar -zx
106 res=$?
107 if [ "$res" -eq "0" ] ; then
108 grep -v media-dev /tmp/mondo-restore.cfg > /tmp/mr.cfg
109 echo "media-dev $tapedev" >> /tmp/mr.cfg
110 cp -f /tmp/mr.cfg /tmp/mondo-restore.cfg
111 fi
112 cd $old_pwd
113 return $res
114}
115
116HandleTape() {
117 local res tapedev
118 tapedev="" ; # will be set by UntarTapeStuff()
119 cd $GROOVY
120 UntarTapeStuff $tapedev || UntarTapeStuff /dev/st0 || UntarTapeStuff /dev/osst0 || UntarTapeStuff /dev/ht0
121 res=$?
122 while [ "$res" -ne "0" ] ; do
123 LogIt "$tapedev failed to act as extended data disk for booting." 1
124 LogIt "Please specify an alternate tape device," 1
125 LogIt "or hit <Enter> to boot from CD/floppies." 1
126 echo -en "---> "
127 read tapedev
128 if [ "$tapedev" ] ; then
129 LogIt "User specified $tapedev instead"
130 UntarTapeStuff $tapedev
131 res=$?
132 else
133 LogIt "User opted not to specify an alternate tapedev"
134 res=1
135 break
136 fi
137 done
138
139 if [ "$res" -ne "0" ] ; then
140 cd /
141 LogIt "Failed to use tape as extended datadisk. Reverting to floppies." 1
142 HandleCDROMorFloppies
143 res=$?
144 else
145# clear
146 LogIt "Using tape as extended datadisk. Good." 3
147 echo "Using tape as extd ddisk." > /tmp/TAPEDEV-HAS-DATA-DISKS
148 res=0
149 CD_MOUNTED_OK=yes
150 fi
151 return $res
152}
153
154
155
156HandleCDROMorFloppies() {
157 find-and-mount-cdrom
158 res=$?
159 if [ "$res" -ne "0" ] ; then
160 LogIt "First call to find-and-mount-cdrom failed." 1
161 LogIt "Sleeping for 3 seconds and trying again." 1
162 sleep 3
163 find-and-mount-cdrom
164 res=$?
165 fi
166 if [ "$res" -eq "0" ] ; then
167 LogIt "OK, I am running on a CD-ROM. Good." 3
168 CD_MOUNTED_OK=yes
169 elif [ "$res" -eq "1" ] ; then
170 LogIt "OK, I am running on floppies. Good." 3
171 CD_MOUNTED_OK=""
172 else
173 LogIt "OK, I am falling back to floppy mode." 3
174 LogIt "That means you'll have to copy the data disk images from" 3
175 LogIt "the CD/hard disk/whatever to physical 1.44MB disks and" 3
176 LogIt "insert them, one after the other. Please see the manual." 3
177 LogIt "The images are in /images on the CD, or /root/images/mindi" 3
178 LogIt "on your hard disk. Your archives are probably fine but" 3
179 LogIt "your tape streamer and/or CD-ROM drive are eccentric. :-)" 3
180 CD_MOUNTED_OK=""
181 fi
182 return 0
183}
184
185
186HowMuchFreeSpaceOnRamdisk() {
187 df -m -P | grep /dev/ram | head -n1 | tr -s '\t' ' ' | cut -d' ' -f4
188}
189
190
191
192InsertEssentialModules() {
193# Load the VIA IDE module first thing if it exists (requires ide-core).
194# This is to ensure that DMA is working for VIA chipsets with 2.6 kernels.
195 for module in /ide-core.ko /via82cxxx.ko; do
196 [ -f "$module" ] && MyInsmod $module > /dev/null 2> /dev/null
197 done
198# Then load the remaining modules in normal (i.e. arbitrary) order.
199 for j in 1 2 3 4 5 ; do
200 for i in `ls /*.*o* 2> /dev/null` ; do
201 [ -f "$i" ] && MyInsmod $i > /dev/null 2> /dev/null
202 done
203 done
204}
205
206
207
208PauseForRaids() {
209 if [ "`dmesg | grep -i "RAID Controller"`" != "" ] || [ "`dmesg | grep -i "Vendor: 3ware"`" != "" ] ; then
210 LogIt "RAID controller(s) detected. Pausing 10 seconds to let them warm up." 1
211 echo -en "Pausing..."
212 for i in 1 2 3 4 5 6 7 8 9 10 ; do
213 sleep 1
214 echo -en "$(($i*10))%..."
215 done
216 echo "Done."
217 fi
218}
219
220
221# 06/13/2002 --- DuckX's & Hugo's new routine
222# 10/11/2003 --- added a simple devfsd.conf file
223# 01/24/2005 --- cater for arbitrary locations of devfsd.conf by using the
224# config file path compiled into devfsd
225RunDevfsd() {
226 loc=`which devfsd 2> /dev/null`
227 if [ "$loc" != "" ] ; then
228 LogIt "Devfs found. Testing kernel support..."
229 if [ ! -e "/dev/.devfsd" ] ; then
230 mount -t devfs devfs /dev 2>> $LOGFILE
231 if [ "$?" -ne "0" ] ; then
232 LogIt "Error while trying to mount devfs"
233 else
234 LogIt "Devfs mounted OK"
235 fi
236 fi
237 #check if the kernel supports devfs
238 if [ -e "/dev/.devfsd" ] ; then
239 [ -d "/proc/1" ] || mount -n /proc
240 LogIt "Kernel support found. Creating config file and starting devfsd"
241 conffile=`strings $loc | grep -E "devfsd.conf$"`
242 [ "$conffile" ] || conffile="/etc/devfsd.conf"
243 confpath=`echo $conffile | sed "s/\/devfsd\.conf$//"`
244 [ -d "$confpath" ] || mkdir -p $confpath
245 echo -en "REGISTER .* MKOLDCOMPAT\nUNREGISTER .* RMOLDCOMPAT\n" > $conffile
246 devfsd /dev &
247 sleep 5
248 else
249 LogIt "No devfs kernel support."
250 fi
251 fi
252}
253
254RunUdevd() {
255 # Inspiration from LFS docs
256 mkdir -p /lib/udev/devices &&
257 mknod -m0666 /lib/udev/devices/null c 1 3
258 ln -sf /proc/self/fd /lib/udev/devices/fd &&
259 ln -sf /proc/self/fd/0 /lib/udev/devices/stdin &&
260 ln -sf /proc/self/fd/1 /lib/udev/devices/stdout &&
261 ln -sf /proc/self/fd/2 /lib/udev/devices/stderr &&
262 ln -sf /proc/kcore /lib/udev/devices/core &&
263 mkdir -p /lib/udev/devices/{pts,shm}
264 cp -R /lib/udev/devices/* /dev
265 udevd --daemon
266}
267
268
269
270
271
272
273#RunDevfsd() {
274# loc=`which devfsd 2> /dev/null`
275# if [ "$loc" != "" ] ; then
276# LogIt "Starting devfsd"
277# devfsd /dev &
278# sleep 5
279# fi
280#}
281
282
283
284SpaceTests() {
285 [ -e "/tmp/filelist.full" ] && cp /tmp/filelist.full /tmp/FLF
286 if [ "`HowMuchFreeSpaceOnRamdisk`" -le "3" ] ; then
287 LogIt "Ramdisk is a bit smaller than I would like." 1
288 LogIt "Please re-run Mondo/Mindi but edit /usr/local/mindi first" 1
289 LogIt "and set EXTRA_SPACE to something high, e.g. 8000" 1
290 Die "Aborting. Please reboot."
291 fi
292 rm -f /tmp/FLF
293}
294
295
296
297StartLvms() {
298 if [ -e "/tmp/i-want-my-lvm" ] ; then
299 LogIt "Scanning LVM's..." 1
300 if which lvm ; then
301 MyInsmod dm-mod
302 MyInsmod dm_mod
303 lvm vgscan --mknodes
304 else
305 vgscan
306 fi
307 grep -E "^#.*vgchange" /tmp/i-want-my-lvm | sed "s/^#[ ]*//" > /tmp/start-lvm
308 chmod +x /tmp/start-lvm
309 echo -en "Starting LVM's..."
310 /tmp/start-lvm &
311 for i in 1 2 3 4 5 ; do
312 echo -en "."
313 sleep 1
314 done
315 echo "Done."
316 fi
317# If necessary, cannibalize 'analyze-my-lvm'; copy some of its code here,
318# pipe vgscan's output, strip it, run 'vgchange' on its output, etc.etc.
319 LogIt "LVM's have been started."
320}
321
322
323StartRaids() {
324 local raid_devices i
325
326 raid_devices=`grep /dev/md /tmp/mountlist.txt | cut -d' ' -f1`
327 if which raidstart > /dev/null 2> /dev/null ; then
328 for i in $raid_devices ; do
329 if grep `basename $i` /proc/mdstat > /dev/null 2> /dev/null ; then
330 LogIt "$i is started already; no need to run 'raidstart $i'" 1
331 else
332 LogIt "Running 'raidstart $i'" 1
333 raidstart $i
334 fi
335 done
336 elif which mdrun > /dev/null 2> /dev/null ; then
337 LogIt "Running 'mdrun'" 1
338 mdrun
339 elif which mdadm > /dev/null 2> /dev/null ; then
340 LogIt "Running 'mdadm'" 1
341 for i in $raid_devices ; do
342 if grep `basename $i` /proc/mdstat > /dev/null 2> /dev/null ; then
343 LogIt "$i is started already; no need to run 'mdadm $i'" 1
344 else
345 if [ -f /etc/mdadm.conf ] ; then
346 LogIt "Running 'mdadm $i' with user supplied /etc/mdadm.conf" 1
347 mdadm -A $i -c /etc/mdadm.conf
348 elif [ -f /etc/mdadm/mdadm.conf ] ; then
349 LogIt "Running 'mdadm $i' with user supplied /etc/mdadm/mdadm.conf" 1
350 mdadm -A $i -c /etc/mdadm/mdadm.conf
351 else
352 LogIt "Running 'mdadm $i'" 1
353 mdadm -Ac partitions -m dev $i
354 fi
355 fi
356 done
357 else
358 LogIt "Warning: Neither 'raidstart' nor 'mdrun''found. RAID devices may not have started." 1
359 fi
360
361}
362
363
364TryAgainToFindCD() {
365 local res
366 mount | grep /mnt/cdrom && return 0
367 [ "`grep "backup_media_type" /tmp/mondo-restore.cfg | grep "cdstream"`" ] && return
368 LogIt "Trying to mount CD-ROM a 2nd time..."
369 find-and-mount-cdrom --second-try
370 res=$?
371 if [ "$res" -eq "0" ] ; then
372 CD_MOUNTED_OK=yes
373 LogIt "CD-ROM drive mounted successfully." 1
374 else
375 LogIt "I still cannot find or mount the CD-ROM drive, by the way."
376 fi
377}
378
379
380
381UseTmpfs()
382{
383 local mount_cmd
384 echo -en "Mounting /tmp/tmpfs..."
385 mkdir -p /tmp/tmpfs
386# For technical reasons, some sets are as large as 16MB.
387# I am allowing 32MB because selective restore occupies a lot of space.
388 for size in 64m 48m 40m 32m ; do
389 mount_cmd="mount /dev/shm -t tmpfs -o size=$size" ; # was 34m until 04/2003
390 LogIt "Trying '$mount_cmd'"
391 $mount_cmd /tmp/tmpfs 2>> $LOGFILE
392 res=$?
393 [ "$res" -eq "0" ] && break
394 done
395 if [ "$res" -ne "0" ] ; then
396 LogIt "Failed. I could not run '$mount_cmd /tmp/tmpfs'. Your kernel is BROKEN or you do not have enough RAM." 1
397 umount /tmp/tmpfs > /dev/null 2> /dev/null
398 rmdir /tmp/tmpfs
399 ln -sf /mnt/RESTORING/tmp /tmp/tmpfs; # used by mondo-restore
400 LogIt "Failed to mount /tmp/tmpfs; using ugly softlink instead"
401 else
402 LogIt "Great. Pivot succeeded w/ size=$size" 1
403 echo -en "Pivoting /tmp..."
404 umount /tmp/tmpfs
405 mkdir -p /tmp.old
406 mv -f /tmp/* /tmp.old/
407 $mount_cmd /tmp
408 mv /tmp.old/* /tmp/
409 rmdir /tmp.old
410 mkdir -p /tmp/tmpfs
411 mkdir -p $GROOVY
412 echo "Done."
413 LogIt "Successfully mounted dynamic /tmp ramdisk"
414# mkdir -p /tmp/tmpfs/var
415# mv -f /var/log /tmp/tmpfs/var/log
416# ln -sf /tmp/tmpfs/var/log /var/log
417 fi
418}
419
420
421WelcomeMessage()
422{
423 echo "********************************************************************"
424 echo "MINDI-LINUX by Mondo Dev Team - web site: http://www.mondorescue.org"
425 echo "Boot disk based on AlfaLinux & Trinux. BusyBox by Erik Andersen."
426which petris > /dev/null 2> /dev/null && echo "Petris was written by Peter Seidler <p.seidler@mail1.stofanet.dk>."
427 echo "Executables and source code are covered by the GNU GPL. No warranty."
428 echo "running on $ARCH"
429 echo "********************************************************************"
430}
431
432
433EnableCcissIfAppropriate() {
434 local i fname
435 for i in 0 1 2 3 ; do
436 fname="/proc/driver/cciss/cciss$i"
437 if [ -e "$fname" ] ; then
438 LogIt "Engaging $fname"
439 echo "engage scsi" > $fname
440 LogIt "...result=$?"
441 fi
442 done
443}
444
445
446ExtractDataDisksAndLoadModules() {
447 echo "Installing additional tools ..."
448 install-additional-tools
449 echo "Inserting modules ..."
450 insert-all-my-modules >> $LOGFILE 2>> $LOGFILE
451}
452
453# ------------------------ main -----------------------
454
455MINDI_VER=PBVER
456MINDI_REV=PBREV
457trap CaughtSoftReset SIGTERM
458LOGFILE=/var/log/mondorestore.log
459PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/mondo:/usr/games
460GROOVY=/tmp/groovy-stuff
461USER=root
462export PATH GROOVY USER LOGFILE
463
464echo "Welcome to init (from mindi ${MINDI_VER}-r${MINDI_REV})"
465
466mount -o remount rw /
467[ ! "$GROOVY" ] && Die "I'm not groovy!"
468for i in $GROOVY /mnt/floppy /mnt/cdrom /mnt/isodir /var/local/petris /tmp/isodir; do
469 mkdir -p $i
470done
471#/bin/update
472mount /proc/ /proc -v -t proc
473mkdir /sys 2> /dev/null
474mount /sys/ /sys -v -t sysfs 2>> $LOGFILE
475rm -f /foozero
476
477echo 0 > /proc/sys/kernel/exec-shield 2>> /dev/null
478
479if [ -e "/tmp/USE-UDEV" ] ; then
480 RunUdevd
481fi
482echo "Starting potential Raid/LVMs ..."
483ExtractDevTarballs
484LaunchTerminals
485InsertEssentialModules
486EnableCcissIfAppropriate
487#-------------------------------
488#WHOLIVESINAPINEAPPLEUNDERTHESEA#;# --- don't touch this :)
489#-------------------------------
490UseTmpfs
491if [ ! -e "/tmp/mondo-restore.cfg" ] ; then
492 LogIt "Warning - /tmp/mondo-restore.cfg not found"
493fi
494
495if [ "`grep -i 'tape ' /tmp/mondo-restore.cfg`" ] || [ "`grep -i udev /tmp/mondo-restore.cfg`" ]; then
496 HandleTape
497 ExtractDataDisksAndLoadModules
498elif [ "`grep -i pxe /proc/cmdline`" ]; then
499 # We need to get here exported variables from start-nfs
500 . /sbin/start-nfs
501
502 # Simulate a local CD
503 echo "/mnt/cdrom" > /tmp/CDROM-LIVES-HERE
504 CD_MOUNTED_OK=yes
505 ExtractDataDisksAndLoadModules
506elif [ "`grep -i usb= /proc/cmdline`" ] || [ "`grep -i usb /tmp/mondo-restore.cfg | grep media-type`" ]; then
507 # We need to get here exported variables from start-nfs
508 . /sbin/start-usb
509
510 # Simulate a local CD
511 echo "/mnt/cdrom" > /tmp/CDROM-LIVES-HERE
512 CD_MOUNTED_OK=yes
513 ExtractDataDisksAndLoadModules
514else
515 HandleCDROMorFloppies
516 ExtractDataDisksAndLoadModules
517 # We need to get here exported variables from start-nfs
518 . /sbin/start-nfs
519fi
520res=$?
521ConfigureLoggingDaemons
522if [ -e "/tmp/USE-DEVFS" ] ; then
523 umount /mnt/cdrom 2> /dev/null
524 mv /dev/cdrom /cdrom.lnk 2> /dev/null
525 CD_MOUNTED_OK=""
526 RunDevfsd
527fi
528echo "Starting potential Raid/LVMs ..."
529PauseForRaids
530StartRaids
531StartLvms
532CopyBootDevEntry
533LoadKeymap
534mkdir -p /tmp/tmpfs
535sleep 2
536#clear
537if [ -e "/dev/md0" ] && [ ! -e "/dev/md/0" ] && [ "`grep /dev/md/ /tmp/mountlist.txt`" != "" ] ; then
538 LogIt "Creating /dev/md/* softlinks just in case." 1
539 mkdir -p /dev/md
540 cp -af /dev/md0 /dev/md/0 2> /dev/null
541 cp -af /dev/md1 /dev/md/1 2> /dev/null
542 cp -af /dev/md2 /dev/md/2 2> /dev/null
543fi
544export ARCH=`uname -m`
545WelcomeMessage
546# SpaceTests; # Mandrake Linux 8.1 doesn't like this
547[ -e "/tmp/mountlist.txt" ] && cp -f /tmp/mountlist.txt /tmp/mountlist.original
548
549if ! [ "`grep -i "pxe" /proc/cmdline`" ] ; then
550 res="`cat /mnt/cdrom/archives/THIS-CD-NUMBER 2> /dev/null`"
551 [ "$res" != "1" ] && [ "$res" != "" ] && Die "This is CD #$res in the series. Please insert CD #1."
552 [ -e "/cdrom.lnk" ] && mv -f /cdrom.lnk /dev/cdrom && mount /dev/cdrom /mnt/cdrom && CD_MOUNTED_OK=yes
553 [ "$CD_MOUNTED_OK" != "yes" ] && TryAgainToFindCD
554 #mount | grep cdrom > /dev/null 2> /dev/null || mount /dev/cdrom /mnt/cdrom >> $LOGFILE 2>> $LOGFILE
555fi
556hack-cfg-if-necessary || LogIt "Cannot find hack-cfg-if-necessary"
557openvt 8 /usr/bin/tail -f $LOGFILE
558
559# Log some useful info
560LogIt "init (from mindi v$MINDI_VER-r${MINDI_REV}"
561LogIt "/proc/cmdline is:"
562cat /proc/cmdline >> $LOGFILE
563LogIt "df result:"
564LogIt "----------"
565df >> $LOGFILE
566LogIt "-------------"
567LogIt "mount result:"
568LogIt "-------------"
569mount >> $LOGFILE
570LogIt "-------------"
571LogIt "lsmod result:"
572LogIt "-------------"
573lsmod >> $LOGFILE
574LogIt "-------------"
575LogIt "dmesg result:"
576LogIt "-------------"
577dmesg >> $LOGFILE
578
579#-------------------------------
580#ABSORBENTANDYELLOWANDPOROUSISHE#;# --- don't touch this either :)
581#-------------------------------
582
583#ctrlaltdel soft
584for path in /usr.bin /usr/bin ; do
585 fname=$path/nano
586 [ -e "$fname" ] && ln -sf $fname /usr/bin/pico
587done
588res=`which nano 2> /dev/null`
589[ "$res" ] && ln -sf /usr/bin/
590for i in null stdout stdin stderr ; do
591 cp -af /dev/$i /tmp
592done
593if grep "backup-media-type" /tmp/mondo-restore.cfg > /dev/null 2> /dev/null ; then
594 LogIt "backup-media-type is specified in config file - great."
595 LogIt "Calling post-init $mountlist"
596 post-init
597else
598 LogIt "backup-media-type is not specified in config file."
599 LogIt "I think this CD/floppy has no archives on it."
600fi
601if grep "RESTORE" /proc/cmdline > /dev/null 2> /dev/null ; then
602 echo "Rebooting in 10 seconds automatically as per reboot order"
603 echo -en "Press ^C to interrupt if you have to ..."
604 for i in 1 2 3 4 5 6 7 8 9 10 ; do
605 sleep 1
606 echo -en "."
607 done
608 echo "Boom."
609 sleep 1
610else
611 echo -en "Type 'exit' to reboot the PC\n"
612 umount /mnt/cdrom 2> /dev/null
613 mount / -o rw,remount > /dev/null 2> /dev/null
614 LogIt "Launching Shell"
615 sh
616fi
617CaughtSoftReset
618# reboot
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