###############################################################################
##
## ofpath: determine OpenFirmware path from unix device node
-## Copyright (C) 2000, 2001, 2002 Ethan Benson
+## Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
##
## Portions based on show_of_path.sh:
##
PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin"
PRG="${0##*/}"
-VERSION=1.0.2
+VERSION=1.0.3
DEBUG=0
export LC_COLLATE=C
Written by Ethan Benson
Portions based on show_of_path.sh written by Olaf Hering
-Copyright (C) 2000, 2001, 2002 Ethan Benson
+Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
Portions Copyright (C) 2000 Olaf Hering
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
return 0
}
+## if readlink is missing use a kludge
+if (command -v readlink > /dev/null 2>&1) ; then
+ true
+else
+ readlink()
+ {
+ local SYMTARGET="$(v=`ls -l "$1" 2>/dev/null` ; echo ${v##*> })"
+ if [ -n "$SYMTARGET" ] ; then
+ echo "$SYMTARGET"
+ return 0
+ else
+ return 1
+ fi
+ }
+fi
+
## a function to print relevant scsi host path when there is more then
## one. this function also takes care of stripping off the trailing
## /compatible.
return 0
}
+ide_ofpath()
+{
+ if [ ! -L "/proc/ide/$DEVNODE" ] ; then
+ echo 2>&1 "$PRG: /dev/$DEVNODE: Device not configured"
+ return 1
+ fi
+
+ local IDEBUS="$(v=`readlink /proc/ide/$DEVNODE` ; echo ${v%%/*} )"
+ if [ -z "$IDEBUS" ] ; then
+ echo 1>&2 "$PRG: BUG: IDEBUS == NULL"
+ return 1
+ fi
+ local OF1275IDE="/proc/ide/$IDEBUS/devspec"
+
+ if [ ! -f "$OF1275IDE" ] ; then
+ case "$(cat /proc/device-tree/model)" in
+ "PowerMac3,6")
+ local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
+ if [ -z "$CDROM" ] ; then
+ echo 1>&2 "$PRG: WARNING: Your kernel is too old for proper support, device may be innaccurate."
+ echo "ultra2:$PARTITION"
+ else
+ echo "cd:$PARTITION"
+ fi
+ ;;
+ *)
+ local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
+ if [ -z "$CDROM" ] ; then
+ if [ "$DEVNODE" = hda ] ; then
+ echo "hd:$PARTITION"
+ else
+ echo "ultra1:$PARTITION"
+ fi
+ else
+ echo "cd:$PARTITION"
+ fi
+ ;;
+ esac
+ else
+ local DEVSPEC="$(cat $OF1275IDE)"
+ [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVSPEC=$DEVSPEC"
+ if [ -z "$DEVSPEC" ] ; then
+ echo 1>&2 "$PRG: KERNEL BUG: $OF1275IDE exists, but is empty"
+ return 1
+ fi
+
+ if [ ! -f "/proc/ide/${IDEBUS}/channel" ] ; then
+ echo 1>&2 "$PRG: KERNEL BUG: /proc/ide/${IDEBUS}/channel does not exist"
+ return 1
+ fi
+
+ case "$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)" in
+ ata)
+ local MASTER="/disk@0"
+ local SLAVE="/disk@1"
+ ;;
+ pci-ide|pci-ata)
+ local MASTER="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@0"
+ local SLAVE="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@1"
+ ;;
+ scsi) ## some lame controllers pretend they are scsi, hopefully all kludges are created equal.
+ local MASTER="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 0)),0"
+ local SLAVE="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 1)),0"
+ ;;
+ *)
+ echo 2>&1 "$PRG: Unsupported IDE device type: \"$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)\""
+ return 1
+ ;;
+ esac
+
+ case "$DEVNODE" in
+ hda|hdc|hde|hdg|hdi|hdk|hdm|hdo)
+ echo "${DEVSPEC}${MASTER}:$PARTITION"
+ return 0
+ ;;
+ hdb|hdd|hdf|hdh|hdj|hdl|hdn|hdp)
+ echo "${DEVSPEC}${SLAVE}:$PARTITION"
+ return 0
+ ;;
+ *)
+ echo 1>&2 "$PRG: /dev/$DEVNODE is not supported"
+ return 1
+ ;;
+ esac
+ fi
+}
+
## figure out the OpenFirmware device path for newworld macs.
## sd* scsi disks , hd* ide disks.
newworld()
true
else
echo 1>&2 "$PRG: /proc/device-tree is broken. Do not use BootX to boot, use yaboot."
- echo 1>&2 "$PRG: The yaboot FAQ can be found here: http://www.alaska.net/~erbenson/doc"
+ echo 1>&2 "$PRG: The yaboot HOWTO can be found here: http://www.alaska.net/~erbenson/doc"
return 1
fi
## find the actual OF path.
scsi_ofpath || return 1
;;
- hda*)
- local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep hda)"
- if [ -z "$CDROM" ] ; then
- echo "hd:$PARTITION"
- else
- echo "cd:$PARTITION"
- fi
- ;;
- hdb*)
- local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep hdb)"
- if [ -z "$CDROM" ] ; then
- echo "ultra1:$PARTITION"
- else
- echo "cd:$PARTITION"
- fi
- ;;
hd*)
- local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
- if [ -z "$CDROM" ] ; then
- echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
- return 1
- else
- echo "cd:$PARTITION"
- fi
+ ide_ofpath || return 1
;;
*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
projects / yaboot.git / blobdiff