make.sh: Bind-mount all loop devices

There seems to be a different way how to create loop devices. On my
Debian system, the first loop device is a block device with major=7 and
minor=0, the second device is major=7 and minor=1, and so on.

On a system running Grml, the second loop device has major=7 and
minor=32, and all following ones are increasing their minor by 32
as well instead of one.

Since I don't have an easy way to detect this, we will simply bind-mount
all available loop devices in to the build environment.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/make.sh b/make.sh
index 21543c667e80fd08c5d916c0c4a7e7c832a17017..e8c3b0827881e8ea0a04654a88169134f3222cde 100755 (executable)
--- a/make.sh
+++ b/make.sh
@@ -447,14 +447,19 @@ prepareenv() {
 
        # Create loop devices
        mknod -m 666 "${BUILD_DIR}/dev/loop-control"    c  10 237
-       mknod -m 666 "${BUILD_DIR}/dev/loop0"                   b   7   0
-       mknod -m 666 "${BUILD_DIR}/dev/loop1"                   b   7   1
-       mknod -m 666 "${BUILD_DIR}/dev/loop2"                   b   7   2
-       mknod -m 666 "${BUILD_DIR}/dev/loop3"                   b   7   3
-       mknod -m 666 "${BUILD_DIR}/dev/loop4"                   b   7   4
-       mknod -m 666 "${BUILD_DIR}/dev/loop5"                   b   7   5
-       mknod -m 666 "${BUILD_DIR}/dev/loop6"                   b   7   6
-       mknod -m 666 "${BUILD_DIR}/dev/loop7"                   b   7   7
+
+       local loop
+
+       # Copy all loop devices from the host
+       for loop in /dev/loop*; do
+               if [ -b "${loop}" ]; then
+                       # Create the mountpoint
+                       : > "${BUILD_DIR}${loop}"
+
+                       # Bind-mount the device
+                       mount --bind  "${loop}" "${BUILD_DIR}${loop}"
+               fi
+       done
 
        # Create directories
        mkdir -p "${BUILD_DIR}/dev/pts"