Add firstboot-growfs port:

  When the system first boots, resize the (GPT) partition holding the root
  filesystem, then resize the (UFS) root filesystem.  This is intended to be
  used in virtual machines where a VM image is built with one size but may
  be launched onto a larger disk.

This will be used in EC2 images in the near future.

4 files changed, 89 insertions, 0 deletions

diff --git a/sysutils/Makefile b/sysutils/Makefile
index 097ed22745c1..2694e4b53d13 100644
--- a/sysutils/Makefile
+++ b/sysutils/Makefile
@@ -245,6 +245,7 @@
     SUBDIR += filewatcherd
     SUBDIR += finfo
     SUBDIR += firstboot-freebsd-update
+    SUBDIR += firstboot-growfs
     SUBDIR += firstboot-pkgs
     SUBDIR += flasher
     SUBDIR += flashrom
diff --git a/sysutils/firstboot-growfs/Makefile b/sysutils/firstboot-growfs/Makefile
new file mode 100644
index 000000000000..c44d72d20409
--- /dev/null
+++ b/sysutils/firstboot-growfs/Makefile
@@ -0,0 +1,26 @@
+# $FreeBSD$
+
+PORTNAME=	firstboot-growfs
+PORTVERSION=	1.0
+CATEGORIES=	sysutils
+MASTER_SITES=	# none
+DISTFILES=	# none
+
+MAINTAINER=	cperciva@FreeBSD.org
+COMMENT=	Expand / when the system first boots
+
+NO_WRKSUBDIR=	yes
+NO_BUILD=	yes
+
+USE_RC_SUBR=	firstboot_growfs
+
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} < 902504 || ( ${OSVERSION} >= 1000000 && ${OSVERSION} < 1000100 ) || ( ${OSVERSION} >= 1000500 && ${OSVERSION} < 1000501 ) || (${OSVERSION} >= 1100000 && ${OSVERSION} < 1100001 )
+IGNORE=	first boot rc.d scripts not supported on this version of FreeBSD
+.endif
+
+do-fetch do-install:
+	@${DO_NADA}
+
+.include <bsd.port.post.mk>
diff --git a/sysutils/firstboot-growfs/files/firstboot_growfs.in b/sysutils/firstboot-growfs/files/firstboot_growfs.in
new file mode 100644
index 000000000000..7e56684cd67f
--- /dev/null
+++ b/sysutils/firstboot-growfs/files/firstboot_growfs.in
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+# $FreeBSD$
+# KEYWORD: firstboot
+# PROVIDE: firstboot_growfs
+# REQUIRE: NETWORKING
+# BEFORE: LOGIN
+
+# Add the following lines to /etc/rc.conf.local or /etc/rc.conf (in the disk
+# image, since this only runs on the first boot) to enable this:
+#
+# firstboot_growfs_enable="YES"
+
+. /etc/rc.subr
+
+: ${firstboot_growfs_enable:="NO"}
+: ${firstboot_growfs_fs:="/"}
+
+name="firstboot_growfs"
+rcvar=firstboot_growfs_enable
+start_cmd="firstboot_growfs_run"
+stop_cmd=":"
+
+firstboot_growfs_run()
+{
+	local FSTYPE DISK GPTLABEL GPART GDISK GPARTNO
+
+	FSTYPE=`mount -p | awk "{ if (\\$2 == \"${firstboot_growfs_fs}\") print \\$3 }"`
+	case ${FSTYPE} in
+	ufs)
+		;;
+	*)
+		echo "${firstboot_growfs_fs} is not a UFS volume, cannot resize"
+		;;
+	esac
+
+	DISK=`mount -p | awk "{ if (\\$2 == \"${firstboot_growfs_fs}\") print \\$1 }"`
+	case ${DISK} in
+	/dev/gpt/*)
+		GPTLABEL=${DISK##/dev/gpt/}
+		;;
+	*)
+		echo "${firstboot_growfs_fs} is not on a GPT disk, cannot resize"
+		return 0
+		;;
+	esac
+
+	GPART=`glabel status -s | awk "{ if (\\$1 == \"gpt/${GPTLABEL}\") print \\$3 }"`
+	GDISK=${GPART%p*}
+	GPARTNO=${GPART##*p}
+
+	gpart recover ${GDISK}
+	gpart resize -i ${GPARTNO} ${GDISK}
+	growfs -y ${firstboot_growfs_fs}
+}
+
+load_rc_config $name
+run_rc_command "$1"
diff --git a/sysutils/firstboot-growfs/pkg-descr b/sysutils/firstboot-growfs/pkg-descr
new file mode 100644
index 000000000000..1c36bcfe9e0a
--- /dev/null
+++ b/sysutils/firstboot-growfs/pkg-descr
@@ -0,0 +1,4 @@
+When the system first boots, resize the (GPT) partition holding the root
+filesystem, then resize the (UFS) root filesystem.  This is intended to be
+used in virtual machines where a VM image is built with one size but may
+be launched onto a larger disk.