ofpath does not generate device name

[Matevz Langus]

Hi,

I tried latest version of yaboot on Ubuntu 14.10 on PowerMac G5 Quad.
ofpath script does not generate OF device name for my boot disk.

Additional issue is usage of let statement in the script. This works 
with BASH, but default in Ubuntu is DASH.

Both issues fixed in the patch bellow.

best regards,
   Matevz Langus

diff --git a/ybin/ofpath b/ybin/ofpath
index aff5583..ad0b388 100755
--- a/ybin/ofpath
+++ b/ybin/ofpath
@@ -280,19 +280,19 @@ scsi_ofpath()
  {
      case "$SCSI_DRIVER" in
         aic7xxx)
-           HOST_LIST="$(for i in `find /proc/device-tree -name 
compatible` ; do
+           HOST_LIST="$(for i in `find /proc/device-tree/ -name 
compatible` ; do
                         lgrep "$i" "^ADPT" "^pci900[45]" 
"^pciclass,01000" ; done)"
             DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
             echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
             ;;
         sym53c8xx)
-           HOST_LIST="$(for i in `find /proc/device-tree -name 
compatible` ; do
+           HOST_LIST="$(for i in `find /proc/device-tree/ -name 
compatible` ; do
                         lgrep "$i" "^Symbios" "^pci1000" 
"^pciclass,01000" ; done)"
             DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
             echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
             ;;
         mesh)
-           HOST_LIST="$(for i in `find /proc/device-tree -name 
compatible` ; do
+           HOST_LIST="$(for i in `find /proc/device-tree/ -name 
compatible` ; do
                         lgrep "$i" "mesh" ; done)"
             DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
             echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
@@ -300,26 +300,26 @@ scsi_ofpath()
ata_k2|sata_svw)
              #Not all G5 device trees have a compatible "k2-sata" node
              #per channel use parent
-           HOST_LIST="$(for i in `find /proc/device-tree -name 
compatible ` ; do
+           HOST_LIST="$(for i in `find /proc/device-tree/ -name 
compatible ` ; do
                         lgrep "$i" "k2-s-ata" ; done | sort)"
             DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
K2_DEVICE_ID=0
             while [ "$DEVICE_PATH" = "" ] ; do
                 SCSI_HOSTNUMBER=`expr $SCSI_HOSTNUMBER - 1`
-               let "K2_DEVICE_ID += 1"
+               K2_DEVICE_ID=$(( $K2_DEVICE_ID + 1 ))
                 DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
done
             echo 
"${DEVICE_PATH##*device-tree}/k2-sata@$K2_DEVICE_ID/disk at 0:$PARTITION"
;;
usb-storage)
-            HOST_LIST="$(for i in `find /proc/device-tree -name name | 
grep usb` ; do
+            HOST_LIST="$(for i in `find /proc/device-tree/ -name name | 
grep usb` ; do
                          lgrep "$i" "disk" ; done)"
              DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
              echo "${DEVICE_PATH##*device-tree}:$PARTITION"
;;
         sbp2|"")
              # sbp-2 driver may not have a dir in /proc/scsi
-            HOST_LIST="$(for i in `find /proc/device-tree -name name` ; do
+            HOST_LIST="$(for i in `find /proc/device-tree/ -name name` ; do
                          lgrep "$i" "sbp-2" ; done)"
              if [ "$SCSI_HOSTNUMBER" = "" ] ; then
                  SCSI_HOSTNUMBER=1