build an image of an ext2 fs that can be dd'ed to an usb stick

1 files changed, 65 insertions, 0 deletions

diff --git a/distrib/loongson/miniroot/Makefile b/distrib/loongson/miniroot/Makefile
new file mode 100644
index 00000000000..ff85254caaa
--- /dev/null
+++ b/distrib/loongson/miniroot/Makefile
@@ -0,0 +1,65 @@
+
+REV=	${OSrev}
+BSD_RD=		bsd.rd
+
+IMAGE=	miniroot${REV}.fs
+
+MOUNT_POINT=	/mnt
+
+VND?=		svnd0
+VND_DEV=	/dev/${VND}a
+VND_CDEV=	/dev/${VND}c
+VND_IDEV=	/dev/${VND}i
+VND_RDEV=	/dev/r${VND}a
+VND_CRDEV=	/dev/r${VND}c
+VND_RIDEV=	/dev/r${VND}i
+PID!=		echo $$$$
+
+DISKTYPE=       miniroot
+# if we make the image smaller, there is no room for an alternate sb
+# out fsck_ext2fs does not like that
+NBLKS=		18432
+
+
+.ifndef DESTDIR
+all ${IMAGE}:
+	@echo setenv DESTDIR before making a ramdisk!
+	@false
+.else
+all:	${IMAGE}
+
+${IMAGE}: rd_setup do_files rd_teardown
+
+.endif
+
+do_files:
+	cp ${.OBJDIR}/../ramdisk/bsd.rd ${MOUNT_POINT}/bsd.rd
+
+rd_setup:
+	dd if=/dev/zero of=${IMAGE} bs=512 count=${NBLKS}
+	vnconfig -v -c -t ${DISKTYPE} ${VND} ${IMAGE}
+	echo 'u\ne 0\n83\n\n63\n*\nw\nq\n' | fdisk -e ${VND} > /dev/null
+	echo 'w\ny\nq\n' | disklabel -E ${VND} > /dev/null
+	newfs_ext2fs ${VND_RIDEV}
+	fsck_ext2fs -f ${VND_RIDEV}
+	mount ${VND_IDEV} ${MOUNT_POINT}
+
+rd_teardown:
+	@df -i ${MOUNT_POINT}
+	-umount ${MOUNT_POINT}
+	-vnconfig -u ${VND}
+
+
+unconfig:
+	-umount -f ${MOUNT_POINT}
+	-vnconfig -u ${VND}
+
+.PRECIOUS:	${IMAGE}
+
+.ifdef RELEASEDIR
+install:
+	cp ${IMAGE} ${RELEASEDIR}
+.endif
+
+.include <bsd.obj.mk>
+.include <bsd.subdir.mk>