Add storage detection logic to debian deploy

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@16154 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/share/xcat/install/scripts/pre.ubuntu

@@ -4,6 +4,39 @@ if [ ! -c /dev/vcs ]; then
     mknod /dev/vcs c 7 0
 fi
 
+for disk in /dev/vd*[^0-9]; do
+	if [ -z "$firstdirectdisk" ]; then firstdirectdisk=$disk; fi #remember first disk as a guess of medium resort
+	#no edd_id in debian installer, no edd hints supported
+done
+if [ -z "$firstdirectdisk" ]; then
+	for disk in /dev/sd*[^0-9]; do
+		currdriver=`udevadm info --attribute-walk --name $disk |grep DRIVERS|grep -v '""'|grep -v '"sd"'|head -n 1|sed -e 's/[^"]*"//' -e 's/"//'`
+		case "$currdriver" in
+			"ata_piix4"|"PMC MaxRAID"|"ahci"|"megaraid_sas") #certainly direct
+				if [ -z "$firstdirectdisk" ]; then firstdirectdisk=$disk; fi #remember first disk as a guess of medium resor
+				;;
+			 "mptsas"|"mpt2sas") #*PROBABLY* not SAN, but SAS SAN is possible
+				if [ -z "$probablyfirstdirectdisk" ]; then probablyfirstdirectdisk=$disk; fi
+				;;
+			*) # could be san or who knows what, use it as a last resort
+				if [ -z "$firstdisk" ]; then firstdisk=$disk; fi 
+				;;
+		esac
+	done
+fi
+if [ -z "$instdisk" ]; then
+        if [ ! -z "$firstdirectdisk" ]; then
+                instdisk=$firstdirectdisk
+        elif [ ! -z "$probablyfirstdirectdisk" ]; then
+                instdisk=$probablyfirstdirectdisk
+        elif [ ! -z "$firstdisk" ]; then
+                instdisk=$firstdisk
+        fi
+fi
+debconf-set partman-auto/disk "$instdisk"
+
+
+
 cat >/tmp/foo.sh <<EOF
 #!/bin/sh