From f97090ab1539ee680d4040b17ca54368879f6d62 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Thu, 20 Aug 2009 07:54:35 +0000
Subject: init: setup serial login in inittab if console=ttyS*

---
 initramfs-init.in | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/initramfs-init.in b/initramfs-init.in
index 8b0f749..afcc979 100755
--- a/initramfs-init.in
+++ b/initramfs-init.in
@@ -147,6 +147,17 @@ find_ovl_dev() {
 	done
 }
 
+setup_inittab_serial(){
+	local tty=$1
+	local speed=$2
+
+	# do nothing if inittab already have the tty set up
+	grep -q "^$tty:" $sysroot/etc/inittab && return 0
+	echo "# enable login on serial console" >> $sysroot/etc/inittab
+	echo "$tty::respawn:/sbin/getty -L $tty $speed vt100" \
+		>> $sysroot/etc/inittab
+}
+
 # gotta start from somewhere :)
 echo "Alpine Init $VERSION"
 
@@ -366,6 +377,11 @@ fi
 apk add --root $sysroot $repo_opt $apkflags $pkgs >/dev/null
 eend $?
 
+# fix inittab if serial console
+case  "$KOPT_console" in
+	ttyS*) setup_inittab_serial $(echo "$KOPT_console" | tr ',' ' ')
+esac
+
 # copy alpine release info
 cp $ALPINE_MNT/.alpine-release $sysroot/
 ln -sf /.alpine-release $sysroot/etc/alpine-release
-- 
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