allow using alternative rootfs image via rootfs= parameter

2 files changed, 7 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 5596f5d..b64cab9 100644
--- a/Makefile
+++ b/Makefile
@@ -70,10 +70,12 @@ rootfs:
         [ -e install-stamp ] || sudo make install-stamp
         $(MAKE) -C rootfs
         sudo mkdir -p /srv/nbd
-        sudo ln -sf "$$PWD"/rootfs/samizdat.btrfs /srv/nbd/samizdat.btrfs
+        sudo ln -sf "$$PWD"/rootfs/$(rootfs).btrfs /srv/nbd/samizdat.btrfs
+
+rootfs = samizdat
 
 define get_kernel_version
-egrep '^ii  linux-image-(amd64|686)' rootfs/_build/samizdat.pkgs.txt  | \
+egrep '^ii  linux-image-(amd64|686)' rootfs/_build/$(rootfs).pkgs.txt  | \
         (read _ pkg ver _; apt-cache show $$pkg=$$ver) | \
         grep Depends | \
         (read _ a; echo $${a#linux-image-})
diff --git a/rootfs/Makefile b/rootfs/Makefile
index 8ddebcf..9bb30a0 100644
--- a/rootfs/Makefile
+++ b/rootfs/Makefile
@@ -1,5 +1,7 @@
 fsmgr := $(shell which fsmgr)
 sudo := $(shell [ "$$(id -u)" = 0 ] || echo sudo)
 
+rootfs = samizdat
+
 all:
-        $(sudo) $(fsmgr) build samizdat
+        $(sudo) $(fsmgr) build $(rootfs)