diff --git a/releasetools/arm_sdimage.sh b/releasetools/arm_sdimage_omap.sh
similarity index 99%
rename from releasetools/arm_sdimage.sh
rename to releasetools/arm_sdimage_omap.sh
index e9a941edd..a95054255 100755
--- a/releasetools/arm_sdimage.sh
+++ b/releasetools/arm_sdimage_omap.sh
@@ -19,13 +19,13 @@ then
 	. ${SETTINGS_MINIX}
 fi
 
+BSP_NAME=omap
 : ${ARCH=evbearm-el}
-: ${OBJ=../obj.${ARCH}}
 : ${TOOLCHAIN_TRIPLET=arm-elf32-minix-}
 : ${BUILDSH=build.sh}
 
 : ${SETS="minix-base minix-comp minix-games minix-man minix-tests tests"}
-: ${IMG=minix_arm_sd.img}
+: ${IMG=minix_arm_sd_omap.img}
 
 # ARM definitions:
 : ${BUILDVARS=-V MKGCCCMDS=yes -V MKLLVM=no}
diff --git a/releasetools/image.defaults b/releasetools/image.defaults
index a37e023b7..5872b5855 100644
--- a/releasetools/image.defaults
+++ b/releasetools/image.defaults
@@ -1,4 +1,4 @@
-: ${OBJ=../obj.${ARCH}}
+: ${OBJ=../obj.${ARCH}-${BSP_NAME}}
 : ${CROSS_TOOLS=${OBJ}/"tooldir.`uname -s`-`uname -r`-`uname -m`"/bin}
 : ${CROSS_PREFIX=${CROSS_TOOLS}/${TOOLCHAIN_TRIPLET}}
 : ${JOBS=1}
@@ -21,6 +21,9 @@
 : ${RC=../local/rc.${ARCH}}
 : ${ASR_HACK=0}
 
+# add BSP to buildvars
+BUILDVARS="-V BSP_NAME=${BSP_NAME} ${BUILDVARS}"
+
 # where the kernel & boot modules will be
 MODDIR=${DESTDIR}/boot/minix/.temp
 
diff --git a/releasetools/x86_cdimage.sh b/releasetools/x86_cdimage.sh
index c51ec202c..337056fb1 100755
--- a/releasetools/x86_cdimage.sh
+++ b/releasetools/x86_cdimage.sh
@@ -6,8 +6,8 @@ set -e
 # be replaced by the proper NetBSD infrastructure.
 #
 
+BSP_NAME=generic-pc
 : ${ARCH=i386}
-: ${OBJ=../obj.${ARCH}}
 : ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
 : ${BUILDSH=build.sh}
 
diff --git a/releasetools/x86_hdimage.sh b/releasetools/x86_hdimage.sh
index 58c758886..eff4a0736 100755
--- a/releasetools/x86_hdimage.sh
+++ b/releasetools/x86_hdimage.sh
@@ -6,8 +6,8 @@ set -e
 # be replaced by the proper NetBSD infrastructure.
 #
 
+BSP_NAME=generic-pc
 : ${ARCH=i386}
-: ${OBJ=../obj.${ARCH}}
 : ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
 : ${BUILDSH=build.sh}
 
diff --git a/releasetools/x86_ramimage.sh b/releasetools/x86_ramimage.sh
index 6e691900d..7cc0f284f 100755
--- a/releasetools/x86_ramimage.sh
+++ b/releasetools/x86_ramimage.sh
@@ -6,8 +6,8 @@ set -e
 # be replaced by the proper NetBSD infrastructure.
 #
 
+BSP_NAME=generic-pc
 : ${ARCH=i386}
-: ${OBJ=../obj.${ARCH}}
 : ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
 : ${BUILDSH=build.sh}
 
diff --git a/releasetools/x86_usbimage.sh b/releasetools/x86_usbimage.sh
index 63b07a32f..20ce76fea 100755
--- a/releasetools/x86_usbimage.sh
+++ b/releasetools/x86_usbimage.sh
@@ -6,8 +6,8 @@ set -e
 # be replaced by the proper NetBSD infrastructure.
 #
 
+BSP_NAME=generic-pc
 : ${ARCH=i386}
-: ${OBJ=../obj.${ARCH}}
 : ${TOOLCHAIN_TRIPLET=i586-elf32-minix-}
 : ${BUILDSH=build.sh}