kernel: ensure that /dev/console exists in initramfs

Linux expects that the /dev/console node is present
in the rootfs image. Create the node in initramfs,
in order to make std{in,out,err} usable even in early
init process.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37846

5 files changed, 150 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.10/922-always-create-console-node-in-initramfs.patch b/target/linux/generic/patches-3.10/922-always-create-console-node-in-initramfs.patch
new file mode 100644
index 0000000..988de35
--- /dev/null
+++ b/target/linux/generic/patches-3.10/922-always-create-console-node-in-initramfs.patch
@@ -0,0 +1,30 @@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -59,6 +59,18 @@ default_initramfs() {
+ 	EOF
+ }
+ 
++list_openwrt_initramfs() {
++	:
++}
++
++openwrt_initramfs() {
++	# make sure that /dev/console exists
++	cat <<-EOF >> ${output}
++		dir /dev 0755 0 0
++		nod /dev/console 0600 0 0 c 5 1
++	EOF
++}
++
+ filetype() {
+ 	local argv1="$1"
+ 
+@@ -177,6 +189,8 @@ dir_filelist() {
+ 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ 		${dep_list}print_mtime "$1"
+ 
++		${dep_list}openwrt_initramfs
++
+ 		echo "${dirlist}" | \
+ 		while read x; do
+ 			${dep_list}parse ${x}
diff --git a/target/linux/generic/patches-3.3/922-always-create-console-node-in-initramfs.patch b/target/linux/generic/patches-3.3/922-always-create-console-node-in-initramfs.patch
new file mode 100644
index 0000000..988de35
--- /dev/null
+++ b/target/linux/generic/patches-3.3/922-always-create-console-node-in-initramfs.patch
@@ -0,0 +1,30 @@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -59,6 +59,18 @@ default_initramfs() {
+ 	EOF
+ }
+ 
++list_openwrt_initramfs() {
++	:
++}
++
++openwrt_initramfs() {
++	# make sure that /dev/console exists
++	cat <<-EOF >> ${output}
++		dir /dev 0755 0 0
++		nod /dev/console 0600 0 0 c 5 1
++	EOF
++}
++
+ filetype() {
+ 	local argv1="$1"
+ 
+@@ -177,6 +189,8 @@ dir_filelist() {
+ 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ 		${dep_list}print_mtime "$1"
+ 
++		${dep_list}openwrt_initramfs
++
+ 		echo "${dirlist}" | \
+ 		while read x; do
+ 			${dep_list}parse ${x}
diff --git a/target/linux/generic/patches-3.6/922-always-create-console-node-in-initramfs.patch b/target/linux/generic/patches-3.6/922-always-create-console-node-in-initramfs.patch
new file mode 100644
index 0000000..988de35
--- /dev/null
+++ b/target/linux/generic/patches-3.6/922-always-create-console-node-in-initramfs.patch
@@ -0,0 +1,30 @@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -59,6 +59,18 @@ default_initramfs() {
+ 	EOF
+ }
+ 
++list_openwrt_initramfs() {
++	:
++}
++
++openwrt_initramfs() {
++	# make sure that /dev/console exists
++	cat <<-EOF >> ${output}
++		dir /dev 0755 0 0
++		nod /dev/console 0600 0 0 c 5 1
++	EOF
++}
++
+ filetype() {
+ 	local argv1="$1"
+ 
+@@ -177,6 +189,8 @@ dir_filelist() {
+ 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ 		${dep_list}print_mtime "$1"
+ 
++		${dep_list}openwrt_initramfs
++
+ 		echo "${dirlist}" | \
+ 		while read x; do
+ 			${dep_list}parse ${x}
diff --git a/target/linux/generic/patches-3.8/922-always-create-console-node-in-initramfs.patch b/target/linux/generic/patches-3.8/922-always-create-console-node-in-initramfs.patch
new file mode 100644
index 0000000..988de35
--- /dev/null
+++ b/target/linux/generic/patches-3.8/922-always-create-console-node-in-initramfs.patch
@@ -0,0 +1,30 @@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -59,6 +59,18 @@ default_initramfs() {
+ 	EOF
+ }
+ 
++list_openwrt_initramfs() {
++	:
++}
++
++openwrt_initramfs() {
++	# make sure that /dev/console exists
++	cat <<-EOF >> ${output}
++		dir /dev 0755 0 0
++		nod /dev/console 0600 0 0 c 5 1
++	EOF
++}
++
+ filetype() {
+ 	local argv1="$1"
+ 
+@@ -177,6 +189,8 @@ dir_filelist() {
+ 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ 		${dep_list}print_mtime "$1"
+ 
++		${dep_list}openwrt_initramfs
++
+ 		echo "${dirlist}" | \
+ 		while read x; do
+ 			${dep_list}parse ${x}
diff --git a/target/linux/generic/patches-3.9/922-always-create-console-node-in-initramfs.patch b/target/linux/generic/patches-3.9/922-always-create-console-node-in-initramfs.patch
new file mode 100644
index 0000000..988de35
--- /dev/null
+++ b/target/linux/generic/patches-3.9/922-always-create-console-node-in-initramfs.patch
@@ -0,0 +1,30 @@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -59,6 +59,18 @@ default_initramfs() {
+ 	EOF
+ }
+ 
++list_openwrt_initramfs() {
++	:
++}
++
++openwrt_initramfs() {
++	# make sure that /dev/console exists
++	cat <<-EOF >> ${output}
++		dir /dev 0755 0 0
++		nod /dev/console 0600 0 0 c 5 1
++	EOF
++}
++
+ filetype() {
+ 	local argv1="$1"
+ 
+@@ -177,6 +189,8 @@ dir_filelist() {
+ 	if [  "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then
+ 		${dep_list}print_mtime "$1"
+ 
++		${dep_list}openwrt_initramfs
++
+ 		echo "${dirlist}" | \
+ 		while read x; do
+ 			${dep_list}parse ${x}