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initramfs-framework: configuration to boot up live image

PATCH Superseded [email protected] 2 participants 3 messages Jul 11, 2017

v4 of 6 Superseded Latest is v6 →

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v4 cover initramfs-framework: configuration to boot up live image

From: "Ng, Wei Tee" <[email protected]>

Hi,

This patch is to get initramfs-framework able to boot up live image. A new scriplet named setup-live module has been created to handle the removeable media detection and assign the rootfs.img. This is because the current rootfs module has no support for rootfs images, only rootfs partitions.

This version 4 included the changes for squashing 2 commits into single commit. It involve the creation of initramfs-module-setup-live in the recipe and added udev-extraconf rdepends on this module because it is needed for automounting process.

This changes has been verified with build test and boot up test on Minnowboard Max platform.

Please review and provide feedback if you have any. The patches are targeted for merging into poky master branch.

Thanks and regards,
Wei Tee

The following changes since commit 854c8c2e4c24ea3ddfec6e5b5f6477f0620510e4:

oeqa/tinfoil: Improve test_wait_event for race issues (2017-07-08 13:34:46 +0100)

are available in the git repository at:

ssh://git.yoctoproject.org/poky-contrib weiteeng/initramfs-final
http://git.yoctoproject.org/cgit.cgi//log/?h=weiteeng/initramfs-final

Ng, Wei Tee (1):
initramfs-framwork: module to support boot live image

 .../initrdscripts/initramfs-framework/setup-live   | 67 ++++++++++++++++++++++
 .../initrdscripts/initramfs-framework_1.0.bb       | 13 ++++-
 2 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 meta/recipes-core/initrdscripts/initramfs-framework/setup-live
Signature · 1 line
2.7.4
#1 lore raw

PATCH v4 1/1 initramfs-framwork: module to support boot live image

From: "Ng, Wei Tee" <[email protected]>

setup-live module is a new module being introduced to integrate the functionality of init-live.sh into new scriptlet named setup-live in order to support the live boot image. The udev-extraconf rdepends is being added to perform automounting. It gets to run before the rootfs and finish module.

The setup-live scriplet include the changes for:

- Create a conditional loop for the bootparam_root variable. If it is not set, then it will boot from ROOT_IMAGE. Else, it will boot normally which is not from removable media.

- Gives a standard path to the original boot disk mount which can be used to. While /media/sda is a good guess, it isn't always right, nor is it a good assumption that only one boot disk is in the system.

- The current rootfs module has no support for rootfs images, currently it only support for rootfs partitions for wic image. Therefore, there is a need to assign the rootfs image for live image.

[YOCTO #11701]

---
This v4 is to squash these changes into single commit.

 .../initrdscripts/initramfs-framework/setup-live   | 67 ++++++++++++++++++++++
 .../initrdscripts/initramfs-framework_1.0.bb       | 13 ++++-
 2 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 meta/recipes-core/initrdscripts/initramfs-framework/setup-live
meta/recipes-core/initrdscripts/initramfs-framework/setup-live new file +67 -0
new file mode 100644
index 0000000..16da34a
@@ -0,0 +1,67 @@
+#/bin/sh
+# Copyright (C) 2011 O.S. Systems Software LTDA.
+# Licensed on MIT
+
+setup_enabled() {
+	return 0
+}
+
+setup_run() {
+ROOT_IMAGE="rootfs.img"
+ISOLINUX=""
+ROOT_DISK=""
+shelltimeout=30
+
+	if [ -z $bootparam_root ]; then
+		echo "Waiting for removable media..."
+		C=0
+		while true
+		do
+		  for i in `ls /run/media 2>/dev/null`; do
+		      if [ -f /run/media/$i/$ROOT_IMAGE ] ; then
+				found="yes"
+				ROOT_DISK="$i"
+				break
+			  elif [ -f /run/media/$i/isolinux/$ROOT_IMAGE ]; then
+				found="yes"
+				ISOLINUX="isolinux"
+				ROOT_DISK="$i"
+				break
+		      fi
+		  done
+		  if [ "$found" = "yes" ]; then
+		      break;
+		  fi
+		  # don't wait for more than $shelltimeout seconds, if it's set
+		  if [ -n "$shelltimeout" ]; then
+		      echo -n " " $(( $shelltimeout - $C ))
+		      if [ $C -ge $shelltimeout ]; then
+		           echo "..."
+			   echo "Mounted filesystems"
+		           mount | grep media
+		           echo "Available block devices"
+		           cat /proc/partitions
+		           fatal "Cannot find $ROOT_IMAGE file in /run/media/* , dropping to a shell "
+		      fi
+		      C=$(( C + 1 ))
+		  fi
+		  sleep 1
+		done
+
+		# The existing rootfs module has no support for rootfs images. Assign the rootfs image.
+		bootparam_root="/run/media/$ROOT_DISK/$ISOLINUX/$ROOT_IMAGE"
+	else
+		break
+	fi
+
+	if [ "$bootparam_LABEL" != "boot" -a -f /init.d/$bootparam_LABEL.sh ] ; then
+		if [ -f /run/media/$i/$ISOLINUX/$ROOT_IMAGE ] ; then
+		    ./init.d/$bootparam_LABEL.sh $i/$ISOLINUX $ROOT_IMAGE $video_mode $vga_mode $console_params
+		else
+		    fatal "Could not find $bootparam_LABEL script"
+		fi
+
+		# If we're getting here, we failed...
+		fatal "Target $bootparam_LABEL failed"
+	fi
+}
meta/recipes-core/initrdscripts/initramfs-framework_1.0.bb +11 -2
index 67a1b04..aa1d847 100644
@@ -13,7 +13,8 @@ SRC_URI = "file://init \
            file://mdev \
            file://udev \
            file://e2fs \
-           file://debug"
+           file://debug \
+	   file://setup-live"
 
 S = "${WORKDIR}"
 
@@ -25,6 +26,9 @@ do_install() {
     install -m 0755 ${WORKDIR}/rootfs ${D}/init.d/90-rootfs
     install -m 0755 ${WORKDIR}/finish ${D}/init.d/99-finish
 
+    # setup-live
+    install -m 0755 ${WORKDIR}/setup-live ${D}/init.d/80-setup-live
+
     # mdev
     install -m 0755 ${WORKDIR}/mdev ${D}/init.d/01-mdev
 
@@ -48,7 +52,8 @@ PACKAGES = "${PN}-base \
             initramfs-module-udev \
             initramfs-module-e2fs \
             initramfs-module-rootfs \
-            initramfs-module-debug"
+            initramfs-module-debug \
+	    initramfs-module-setup-live"
 
 FILES_${PN}-base = "/init /init.d/99-finish /dev"
 
@@ -68,6 +73,10 @@ SUMMARY_initramfs-module-udev = "initramfs support for udev"
 RDEPENDS_initramfs-module-udev = "${PN}-base udev"
 FILES_initramfs-module-udev = "/init.d/01-udev"
 
+SUMMARY_initramfs-module-setup-live = "initramfs support for setup live"
+RDEPENDS_initramfs-module-setup-live = "${PN}-base udev-extraconf"
+FILES_initramfs-module-setup-live = "/init.d/80-setup-live"
+
 SUMMARY_initramfs-module-e2fs = "initramfs support for ext4/ext3/ext2 filesystems"
 RDEPENDS_initramfs-module-e2fs = "${PN}-base"
 FILES_initramfs-module-e2fs = "/init.d/10-e2fs"
Signature · 1 line
2.7.4
#2 lore raw
In reply to [email protected]
Quoted 10 lines · On Mon, Jul 10, 2017 at 2:09 PM, <[email protected]> wrote:

From: "Ng, Wei Tee" <[email protected]>

Hi,

This patch is to get initramfs-framework able to boot up live image. A new scriplet named setup-live module has been created to handle the removeable media detection and assign the rootfs.img. This is because the current rootfs module has no support for rootfs images, only rootfs partitions.

Quoted 4 lines

This version 4 included the changes for squashing 2 commits into single commit. It involve the creation of initramfs-module-setup-live in the recipe and added udev-extraconf rdepends on this module because it is needed for automounting process.

As I said on the other patch, it still has indenting issues; please check.

Signature · 3 lines
Otavio Salvador                             O.S. Systems
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