3 ###############################################################################
5 ## ofpath: determine OpenFirmware path from unix device node
6 ## Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
8 ## Portions based on show_of_path.sh:
10 ## Copyright (C) 2000 Olaf Hering <olh@suse.de>
12 ## This program is free software; you can redistribute it and/or
13 ## modify it under the terms of the GNU General Public License
14 ## as published by the Free Software Foundation; either version 2
15 ## of the License, or (at your option) any later version.
17 ## This program is distributed in the hope that it will be useful,
18 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ## GNU General Public License for more details.
22 ## You should have received a copy of the GNU General Public License
23 ## along with this program; if not, write to the Free Software
24 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 ###############################################################################
28 PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin"
39 Written by Ethan Benson
40 Portions based on show_of_path.sh written by Olaf Hering
42 Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
43 Portions Copyright (C) 2000 Olaf Hering
44 This is free software; see the source for copying conditions. There is NO
45 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
52 "Usage: $PRG [OPTION]... FILE
53 Find OpenFirmware device path from unix device node.
55 --debug print boring junk only useful for debugging
56 -h, --help display this help and exit
57 -V, --version output version information and exit"
60 ## a small seq replacement, seq is not present on boot/rescue floppies.
66 while [ "$v" -gt 1 ] ; do
74 ## a kludge to replace wc -l, wc is not present on boot/rescue
75 ## floppies. max file is 145 lines, 3 hosts * 16 devs each * 3 lines
76 ## per device, + 1 "Attached Devices:" line.
83 local file="$(cat $1)"
87 if [ -z "$file" ] ; then
92 ## use real wc if available
93 if (command -v wc > /dev/null 2>&1) ; then
94 if [ -x `command -v wc` ] ; then
95 lines="$(echo "$file" | wc -l)"
105 for i in `smallseq 145` ; do
106 local b="$(echo "$file" | tail -n $i)"
107 if [ "$v" = "$b" ] ; then
116 ## small tr replacment which handles a specific need of this script.
120 a) echo 1 ;; b) echo 2 ;; c) echo 3 ;; d) echo 4 ;; e) echo 5 ;; f) echo 6 ;;
121 g) echo 7 ;; h) echo 8 ;; i) echo 9 ;; j) echo 10 ;; k) echo 11 ;; l) echo 12 ;;
122 m) echo 13 ;; n) echo 14 ;; o) echo 15 ;; p) echo 16 ;;
123 1) echo a ;; 2) echo b ;; 3) echo c ;; 4) echo d ;; 5) echo e ;;
124 6) echo f ;; 7) echo g ;; 8) echo h ;; 9) echo i ;; 10) echo j ;;
125 11) echo k ;; 12) echo l ;; 13) echo m ;; 14) echo n ;; 15) echo o ;;
131 ## replacment for grep -l which is not supported by busybox grep.
132 ## echo $(cat..) hack needed because busybox grep barfs with `line too
133 ## long' when fed /proc files. the for loop is needed since busybox
134 ## grep seems to have somewhat broken regexp support.
135 ## usage: lgrep filename regexp regexp ...
141 echo "$(cat "$f")" | grep -q "$i" && echo "$f" && break
146 ## if readlink is missing use a kludge
147 if (command -v readlink > /dev/null 2>&1) ; then
152 local SYMTARGET="$(v=`ls -l "$1" 2>/dev/null` ; echo ${v##*> })"
153 if [ -n "$SYMTARGET" ] ; then
162 ## a function to print relevant scsi host path when there is more then
163 ## one. this function also takes care of stripping off the trailing
184 ## this finds information we need on both newworld and oldworld macs.
185 ## mainly what scsi host a disk is attached to.
188 ## see if system has scsi at all
189 if [ ! -f /proc/scsi/scsi ] ; then
190 local kver="$(uname -r)"
193 if [ -d /sys/bus/scsi/devices -a \
194 -n "$(ls /sys/bus/scsi/devices 2>/dev/null)" ] ; then
195 echo 1>&2 "$PRG: /proc/scsi/scsi does not exist"
196 echo 1>&2 "$PRG: Make sure you compiled your kernel with CONFIG_SCSI_PROC_FS=y"
201 echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
205 ## first we have to figure out the SCSI ID, have to do that
206 ## anyway [to] find the attached scsi disks = "Direct-Access" and
207 ## stop at sda=1 sdb=2 or whatever count in 3 lines steps
209 ## get last letter of device node, ie sda -> a
210 SUBNODE=${DEVNODE##*sd}
212 ## turn SUBNODE above into a number starting at 1, ie a -> 1
213 SUBDEV="$(smalltr $SUBNODE)"
214 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SUBNODE=$SUBNODE SUBDEV=$SUBDEV"
218 ## copy scsi file into a variable removing "Attached Devices"
219 ## which is the first line. this avoids a lot of
220 ## [incmopatible] crap later, and improves readability.
222 ## find number of lines once and recycle that number, to save
223 ## some time (linecount is a bit slow). subtract one line
224 ## to scrap Attached Devices:
226 SCSILINES="$(($(linecount /proc/scsi/scsi) - 1))"
228 if [ "$SUBDEV" -gt "$(cat /proc/scsi/scsi | grep Direct-Access | linecount)" ] ; then
229 echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
233 PROCSCSI="$(cat /proc/scsi/scsi | tail -n $SCSILINES)"
235 for i in $(smallseq $(($SCSILINES / 3))) ; do
237 ## put every scsi device into one single line
238 DEVINFO="$(echo "$PROCSCSI" | head -n $(($i * 3)) | tail -n 3)"
239 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVINFO=$DEVINFO"
241 ## cut the type field, expect "Direct-Access" later.
242 DEVTYPE="$(v=$(echo ${DEVINFO##*Type: }) ; echo ${v%% *})"
243 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVTYPE=$DEVTYPE"
245 ## get the device id.
246 DEVID="$(v=$(echo ${DEVINFO##*Id: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
247 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVID=$DEVID"
249 ## get the scsi host id.
250 DEVHOST="$(v=$(echo ${DEVINFO##*Host: scsi}) ; echo ${v%% *})"
251 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVHOST=$DEVHOST"
253 if [ "$DEVTYPE" = "Direct-Access" ] || [ "$DEVTYPE" = "Direct-Access-RBC" ] ; then
254 DEVCOUNT="$(($DEVCOUNT + 1))"
255 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVCOUNT=$DEVCOUNT"
256 if [ "$SUBDEV" = "$DEVCOUNT" ] ; then
259 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVICE_HOST=$DEVICE_HOST"
265 ## figure out what the scsi driver is, it is /proc/scsi/dirname.
266 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVICE_HOST=$DEVICE_HOST"
267 SCSI_DRIVER="$(x=`ls /proc/scsi/*/$DEVICE_HOST 2>/dev/null | cat` ; y=`echo ${x##*proc/scsi/}` ; echo ${y%%/*})"
268 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SCSI_DRIVER=$SCSI_DRIVER"
270 ## figure out which host we found.
271 SCSI_HOSTNUMBER="$(v=`ls /proc/scsi/$SCSI_DRIVER/* 2>/dev/null | cat | grep -n "$DEVICE_HOST\>"` ; echo ${v%%:*})"
272 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SCSI_HOSTNUMBER=$SCSI_HOSTNUMBER"
277 ## generic function that can find OF device paths for scsi devices,
278 ## must be run after scsiinfo().
281 case "$SCSI_DRIVER" in
283 HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
284 lgrep "$i" "^ADPT" "^pci900[45]" "^pciclass,01000" ; done)"
285 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
286 echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
289 HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
290 lgrep "$i" "^Symbios" "^pci1000" "^pciclass,01000" ; done)"
291 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
292 echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
295 HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
296 lgrep "$i" "mesh" ; done)"
297 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
298 echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
301 #Not all G5 device trees have a compatible "k2-sata" node
302 #per channel use parent
303 HOST_LIST="$(for i in `find /proc/device-tree -name compatible ` ; do
304 lgrep "$i" "k2-s-ata" ; done | sort)"
305 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
307 while [ "$DEVICE_PATH" = "" ] ; do
308 SCSI_HOSTNUMBER=`expr $SCSI_HOSTNUMBER - 1`
309 let "K2_DEVICE_ID += 1"
310 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
312 echo "${DEVICE_PATH##*device-tree}/k2-sata@$K2_DEVICE_ID/disk@0:$PARTITION"
315 HOST_LIST="$(for i in `find /proc/device-tree -name name | grep usb` ; do
316 lgrep "$i" "disk" ; done)"
317 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
318 echo "${DEVICE_PATH##*device-tree}:$PARTITION"
321 # sbp-2 driver may not have a dir in /proc/scsi
322 HOST_LIST="$(for i in `find /proc/device-tree -name name` ; do
323 lgrep "$i" "sbp-2" ; done)"
324 if [ "$SCSI_HOSTNUMBER" = "" ] ; then
327 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
328 echo "${DEVICE_PATH##*device-tree}/disk@0:$PARTITION"
331 echo 1>&2 "$PRG: Driver: $SCSI_DRIVER is not supported"
340 if [ ! -L "/proc/ide/$DEVNODE" ] ; then
341 echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
345 local IDEBUS="$(v=`readlink /proc/ide/$DEVNODE` ; echo ${v%%/*} )"
346 if [ -z "$IDEBUS" ] ; then
347 echo 1>&2 "$PRG: BUG: IDEBUS == NULL"
351 case "$(uname -r)" in
352 2.5.*|2.6.0*|2.6.1|2.6.1-*|2.6.2|2.6.2-*)
353 echo 1>&2 "$PRG: Linux kernel `uname -r` is not supported"
357 if ! (grep -q '.* .* sysfs ' /proc/mounts 2> /dev/null) ; then
358 echo 1>&2 "$PRG: sysfs must be mounted for ofpath to support this system"
361 local SYS="$(m=`grep '.* .* sysfs ' /proc/mounts | head -n 1` ; echo `d=${m#* };echo ${d%% *}`)"
362 if [ -z "$SYS" -o ! -d "$SYS" ] ; then
363 echo 1>&2 "$PRG: Unable to determine sysfs mountpoint"
366 local OF1275IDE="${SYS}/block/${DEVNODE}/device/../../devspec"
369 local OF1275IDE="/proc/ide/$IDEBUS/devspec"
373 if [ ! -f "$OF1275IDE" ] ; then
374 case "$(cat /proc/device-tree/model)" in
375 PowerMac3*|PowerMac4*|PowerMac5*|PowerMac6*|PowerMac7*|RackMac*)
376 local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
377 if [ -z "$CDROM" ] ; then
378 echo 1>&2 "$PRG: WARNING: Your kernel is too old for proper support, device may be innaccurate."
379 echo "ultra2:$PARTITION"
385 local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
386 if [ -z "$CDROM" ] ; then
387 if [ "$DEVNODE" = hda ] ; then
390 echo "ultra1:$PARTITION"
398 local DEVSPEC="$(cat $OF1275IDE)"
399 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVSPEC=$DEVSPEC"
400 if [ -z "$DEVSPEC" ] ; then
401 echo 1>&2 "$PRG: KERNEL BUG: $OF1275IDE exists, but is empty"
405 if [ ! -f "/proc/ide/${IDEBUS}/channel" ] ; then
406 echo 1>&2 "$PRG: KERNEL BUG: /proc/ide/${IDEBUS}/channel does not exist"
410 case "$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)" in
412 local MASTER="/disk@0"
413 local SLAVE="/disk@1"
416 local MASTER="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@0"
417 local SLAVE="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@1"
419 scsi) ## some lame controllers pretend they are scsi, hopefully all kludges are created equal.
420 local MASTER="/@$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 0))"
421 local SLAVE="/@$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 1))"
424 local MASTER="/disk@$(cat /proc/ide/${IDEBUS}/channel),0"
425 local SLAVE="/disk@$(cat /proc/ide/${IDEBUS}/channel),1"
428 echo 1>&2 "$PRG: Unsupported IDE device type: \"$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)\""
434 hda|hdc|hde|hdg|hdi|hdk|hdm|hdo)
435 echo "${DEVSPEC}${MASTER}:$PARTITION"
438 hdb|hdd|hdf|hdh|hdj|hdl|hdn|hdp)
439 echo "${DEVSPEC}${SLAVE}:$PARTITION"
443 echo 1>&2 "$PRG: /dev/$DEVNODE is not supported"
450 ## figure out the OpenFirmware device path for newworld macs.
451 ## sd* scsi disks , hd* ide disks.
456 ## use common scsiinfo function to get info we need.
459 ## now we have the data for /@$DEVID:$PARTITION
460 ## find the actual OF path.
461 scsi_ofpath || return 1
464 ide_ofpath || return 1
467 echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
476 ## for some reason 2.4 kernels put OF aliases in aliases@0/ instead of plain aliases/
477 if [ -d "/proc/device-tree/aliases" ] ; then
478 local ALIASES="aliases"
479 elif [ -d "/proc/device-tree/aliases@0" ] ; then
480 local ALIASES="aliases@0"
482 echo 1>&2 "$PRG: Cannot find OpenFirmware aliases directory in /proc/device-tree/"
486 local MODEL="$(cat /proc/device-tree/compatible)"
487 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: Oldworld subarch: $MODEL"
490 AAPL,7300*|AAPL,7500*|AAPL,8500*|AAPL,9500*|AAPL,\?\?\?\?*)
494 case "$SCSI_DRIVER" in
496 echo $(cat /proc/device-tree/$ALIASES/scsi-int)/sd\@$DEVICE_ID:$PARTITION
499 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
502 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
508 echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
517 case "$SCSI_DRIVER" in
519 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
522 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
528 echo $(cat /proc/device-tree/$ALIASES/ata)/ATA-Disk\@0:$PARTITION
531 echo $(cat /proc/device-tree/$ALIASES/ata)/ATA-Disk\@1:$PARTITION
534 echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
542 case "$SCSI_DRIVER" in
544 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
547 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
553 echo $(cat /proc/device-tree/$ALIASES/ata)/ata-disk\@0:$PARTITION
556 echo $(cat /proc/device-tree/$ALIASES/ata)/ata-disk\@1:$PARTITION
559 echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
563 AAPL,Gossamer*|AAPL,PowerMac\ G3*)
567 case "$SCSI_DRIVER" in
569 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
572 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
578 echo $(cat /proc/device-tree/$ALIASES/ide0)/ata-disk\@0:$PARTITION
581 echo $(cat /proc/device-tree/$ALIASES/ide0)/ata-disk\@1:$PARTITION
584 echo $(cat /proc/device-tree/$ALIASES/ide1)/ata-disk\@0:$PARTITION
587 echo $(cat /proc/device-tree/$ALIASES/ide1)/ata-disk\@1:$PARTITION
590 echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
595 if [ -f /proc/device-tree/$ALIASES/ata0 ] ; then
600 if [ -f /proc/device-tree/$ALIASES/ata1 ] ; then
608 case "$SCSI_DRIVER" in
610 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITON
613 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
619 echo $(cat /proc/device-tree/$ALIASES/$ATA0)/ata-disk\@0:$PARTITION
622 echo $(cat /proc/device-tree/$ALIASES/$ATA0)/ata-disk\@1:$PARTITION
625 echo $(cat /proc/device-tree/$ALIASES/$ATA1)/atapi-disk\@0:$PARTITION
628 echo $(cat /proc/device-tree/$ALIASES/$ATA1)/atapi-disk\@1:$PARTITION
631 echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
640 case "$SCSI_DRIVER" in
642 echo $(cat /proc/device-tree/$ALIASES/scsi-int)/sd\@$DEVICE_ID:$PARTITON
645 echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITON
648 echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
654 echo $(cat /proc/device-tree/$ALIASES/ata0)/ata-disk\@0:$PARTITION
657 echo $(cat /proc/device-tree/$ALIASES/ata0)/ata-disk\@1:$PARTITION
660 echo $(cat /proc/device-tree/$ALIASES/ata1)/atapi-disk\@0:$PARTITION
663 echo $(cat /proc/device-tree/$ALIASES/ata1)/atapi-disk\@1:$PARTITION
666 echo $(cat /proc/device-tree/$ALIASES/ata2):$PARTITION
669 echo $(cat /proc/device-tree/$ALIASES/ata3):$PARTITION
672 echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
678 echo 1>&2 "$PRG: This machine is not supported: $MODEL"
685 ## find OpenFirmware device path for IBM CHRP hardware (scsi only)
691 ## use common scsiinfo function to get info we need.
694 ## now we have the data for /@$DEVID:$PARTITION
695 ## find the actual OF path.
696 scsi_ofpath || return 1
699 echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
706 ## If we get lame devfs name, we need to make it foad
710 /dev/ide/*|/dev/scsi/*|/dev/discs/*)
719 ## convert devfs names into normal short ones, written by Tom Rini.
722 ## get partition number, if any
723 local PARTNUM="${1##*[a-z]}"
724 ## Find the bus type.
725 local TYPE="$(v=${1#/dev/} ; echo ${v%/host*})"
726 ## Find the host number.
727 local HOST="$(v=${1#/dev/*/host} ; echo ${v%/bus*})"
728 ## Find the bus number.
729 local BUS="$(v=${1#/dev/*/bus} ; echo ${v%/tar*})"
731 local TARGET="$(v=${1#/dev/*/target} ; echo ${v%/lun*})"
757 echo 1>&2 "$PRG: $1: Unable to translate this device, try again without devfs."
760 local DEV="${DEV}${PARTNUM}"
765 local LUN="$(v=${1#/dev/*/lun} ; echo ${v%/*})"
767 ## In this case, we need to figure out what number our device is
770 ## copy scsi file into a variable removing "Attached Devices"
771 ## which is the first line. this avoids a lot of
772 ## [incmopatible] crap later, and improves readability.
774 ## find number of lines once and recycle that number, to save
775 ## some time (linecount is a bit slow). subtract one line
776 ## to scrap Attached Devices:
778 local SCSILINES="$(($(linecount /proc/scsi/scsi) - 1))"
779 local PROCSCSI="$(cat /proc/scsi/scsi | tail -n $SCSILINES)"
781 for i in $(smallseq $(($SCSILINES / 3))) ; do
783 ## put every scsi device into one single line
784 local DEVINFO="$(echo "$PROCSCSI" | head -n $(($i * 3)) | tail -n 3)"
785 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVINFO=$DEVINFO"
787 ## cut the type field, expect "Direct-Access" later.
788 local DEVTYPE="$(v=$(echo ${DEVINFO##*Type: }) ; echo ${v%% *})"
789 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVTYPE=$DEVTYPE"
791 if [ "$DEVTYPE" = "Direct-Access" ] || [ "$DEVTYPE" = "Direct-Access-RBC" ] ; then
792 ## Lets find out some more information
793 ## get the device id.
794 local DEVID="$(v=$(echo ${DEVINFO##*Id: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
795 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVID=$DEVID"
797 ## get the device lun.
798 local DEVLUN="$(v=$(echo ${DEVINFO##*Lun: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
799 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVLUN=$DEVLUN"
801 ## get the device channel.
802 local DEVCHAN="$(v=$(echo ${DEVINFO##*Channel: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
803 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVCHAN=$DEVCHAN"
805 ## get the scsi host id.
806 local DEVHOST="$(v=$(echo ${DEVINFO##*Host: scsi}) ; echo ${v%% *})"
807 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVHOST=$DEVHOST"
809 local DEVCOUNT="$(($DEVCOUNT + 1))"
810 [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVCOUNT=$DEVCOUNT"
811 if [ "$DEVHOST" = "$HOST" -a "$DEVCHAN" = "$BUS" -a \
812 "$DEVID" = "$TARGET" -a "$DEVLUN" = "$LUN" ] ; then
813 local DEV="sd$(smalltr $DEVCOUNT)${PARTNUM}"
819 echo 1>&2 "$PRG: $1: Unable to translate this device, try again without devfs."
823 echo 1>&2 "$PRG: Unknown bus $TYPE"
827 ## we should never get here
831 ## make sure that find, head and tail can be found. otherwise the
832 ## script will silently give bogus paths. these are the only /usr/*
833 ## utilities this script depends on.
836 if command -v find > /dev/null 2>&1 ; then
837 [ -x `command -v find` ] || FAIL=1 ; else FAIL=1 ; fi
838 if command -v head > /dev/null 2>&1 ; then
839 [ -x `command -v head` ] || FAIL=1 ; else FAIL=1 ; fi
840 if command -v tail > /dev/null 2>&1 ; then
841 [ -x `command -v tail` ] || FAIL=1 ; else FAIL=1 ; fi
843 if [ "$FAIL" = 1 ] ; then
844 echo 1>&2 "$PRG: \`find', \`head', or \`tail' could not be found, aborting."
851 ## parse command line switches.
852 if [ $# != 0 ] ; then
868 echo 1>&2 "$PRG: unrecognized option \`$1'"
869 echo 1>&2 "$PRG: Try \`$PRG --help' for more information."
873 echo 1>&2 "$PRG: You must specify a filename"
874 echo 1>&2 "Try \`$PRG --help' for more information."
884 echo 1>&2 "$PRG: You must specify a /dev device"
885 echo 1>&2 "Try \`$PRG --help' for more information."
889 ## check that FILE is a block device and exists.
890 if [ ! -e "$device" ] ; then
891 echo 1>&2 "$PRG: $device: No such file or directory"
893 elif [ ! -b "$device" ] ; then
894 echo 1>&2 "$PRG: $device is not a block device"
898 ## check that we are running on a GNU/Linux system, OSX/BSD does not
899 ## have the same /proc stuff
900 if [ `uname -s` != Linux ] ; then
901 echo 1>&2 "$PRG: This utility will only work with GNU/Linux"
905 ## check for ppc, i think uname -m is safe for this...
906 if [ `uname -m` != ppc -a `uname -m` != ppc64 ] ; then
907 echo 1>&2 "$PRG: This utility will only work on PowerPC hardware"
911 ## ofpath cannot live without procfs
912 if [ ! -f /proc/uptime ] ; then
913 echo 1>&2 "$PRG: This utility requires the /proc filesystem"
917 ## check for retarded devfs names and tell them to foad.
918 if ckdevfs "$device" ; then
919 device="$(fixdevfs $device)" || exit 1
922 ## check for newworld mac. use cat hack due to /proc wierdness.
923 if [ "$(v=`cat /proc/cpuinfo 2>/dev/null | grep pmac-generation` ; echo ${v##*:[ ]})" = NewWorld ] ; then
925 elif [ "$(v=`cat /proc/cpuinfo 2>/dev/null | grep pmac-generation` ; echo ${v##*:[ ]})" = OldWorld ] ; then
927 elif (cat /proc/cpuinfo 2>/dev/null | grep ^motherboard | grep -q AAPL) ; then
929 elif (cat /proc/cpuinfo 2> /dev/null | grep ^machine | grep -q 'CHRP IBM') ; then
931 elif (cat /proc/cpuinfo 2>/dev/null | grep ^machine | grep -q 'CHRP Pegasos') ; then
934 echo 1>&2 "$PRG: This machine is not yet supported"
938 ## make sure /proc/device-tree exists
939 if [ ! -d /proc/device-tree ] ; then
940 echo 1>&2 "$PRG: /proc/device-tree does not exist"
941 echo 1>&2 "$PRG: Make sure you compiled your kernel with CONFIG_PROC_DEVICETREE=y"
945 ## make sure we have what we need.
948 ## get the base device node and scrap /dev/ ie /dev/hda2 -> hda
949 DEVICE="${device##*/}"
950 DEVNODE="${DEVICE%%[0-9]*}"
951 PARTITION="${DEVICE##*[a-z]}"
953 ## use appropriate search for right sub arch.
955 # Pegasos OF seems to be NewWorld-ish enough to cope with this.