SlugOS 5 - replace "mount -U" with "mount UUID=" which works with both mount

and busybox mount; also update boot/disk script to ensure that some key
devices exist in the new /dev which will enable booting to a virgin nfsroot.

1 files changed, 13 insertions, 0 deletions

diff --git a/packages/slugos-init/files/functions b/packages/slugos-init/files/functions
index 18f4009ee7..5b6b40b091 100644
--- a/packages/slugos-init/files/functions
+++ b/packages/slugos-init/files/functions
@@ -173,6 +173,7 @@ checkmount(){
 	# basic test for init (the kernel will try to load this)
 	# but require a shell in bin/sh too
 	test	\( -d "$1/mnt" \) -a \
+		\( -d "$1/dev" \) -a \
 		\( -x "$1/bin/sh" -o -h "$1/bin/sh" \) -a \
 		\( -x "$1/usr/sbin/chroot" -o -h "$1/usr/sbin/chroot" -o \
 		   -x "$1/sbin/chroot" -o -h "$1/sbin/chroot" \) -a \
@@ -181,6 +182,18 @@ checkmount(){
 		   -x "$1/bin/init" -o -h "$1/bin/init" \)
 }
 #
+# minimaldevnodes "mountpoint"
+#  tests an already mounted mountpoint to see if a very minimal
+#  set of devices exists or can be created in dev, and returns
+#  failure if not.  This is required for booting to an nfsroot
+#  with an empty dev directory, as commonly occurs when the rootfs
+#  is created from a tar.gz image.  This is also required for mdev.
+minimaldevnodes(){
+	[ -c "$1/dev/console" ] || mknod -m 600 "$1/dev/console" c 5 1 || return 1
+	[ -c "$1/dev/null"    ] || mknod -m 666 "$1/dev/null"    c 1 3 || return 1
+	return 0
+}
+#
 # swivel "new root" "old root"
 #  NOTE: the arguments must be paths relative to /, bad things
 #  will happen if the arguments themselves start with /