[OE-core] [PATCH 2/4] initramfs-live-boot: make it more generic and easy to use
Otavio Salvador
otavio at ossystems.com.br
Thu Oct 13 14:41:17 UTC 2011
The script was making some assumptions that enforced many requirement
in the machine kernel configuration and usage, besides it were too
while booting.
Changes included:
* fix indentation;
* rdepends on udev;
* allow use of isofs as module;
* remove rootdelay param parsing as it was unused;
* don't verbosely kill udevd and mknod;
* mount devtmpfs into rootfs, if available, before swithing root;
Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---
meta/recipes-core/initrdscripts/files/init-live.sh | 32 ++++++++++++-------
.../initrdscripts/initramfs-live-boot_1.0.bb | 3 +-
2 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh b/meta/recipes-core/initrdscripts/files/init-live.sh
index c054863..eb5ab5b 100644
--- a/meta/recipes-core/initrdscripts/files/init-live.sh
+++ b/meta/recipes-core/initrdscripts/files/init-live.sh
@@ -13,6 +13,11 @@ early_setup() {
mkdir /sys
mount -t proc proc /proc
mount -t sysfs sysfs /sys
+
+ # support modular kernel
+ modprobe isofs 2> /dev/null
+
+ mkdir /run
udevd --daemon
udevadm trigger --action=add
}
@@ -25,21 +30,25 @@ read_args() {
root=*)
ROOT_DEVICE=$optarg ;;
rootfstype=*)
- ROOT_FSTYPE=$optarg ;;
- rootdelay=*)
- rootdelay=$optarg ;;
- LABEL=*)
- label=$optarg ;;
- video=*)
- video_mode=$arg ;;
- vga=*)
- vga_mode=$arg ;;
+ modprobe $optarg 2> /dev/null ;;
+ LABEL=*)
+ label=$optarg ;;
+ video=*)
+ video_mode=$arg ;;
+ vga=*)
+ vga_mode=$arg ;;
esac
done
}
boot_live_root() {
- killall udevd
+ killall udevd 2>/dev/null
+
+ # use devtmpfs if available
+ if grep -q devtmpfs /proc/filesystems; then
+ mount -t devtmpfs devtmpfs $ROOT_MOUNT/dev
+ fi
+
cd $ROOT_MOUNT
exec switch_root -c /dev/console $ROOT_MOUNT /sbin/init
}
@@ -78,7 +87,7 @@ done
case $label in
boot)
mkdir $ROOT_MOUNT
- mknod /dev/loop0 b 7 0
+ mknod /dev/loop0 b 7 0 2>/dev/null
if ! $MOUNT -o rw,loop,noatime,nodiratime /media/$i/$ISOLINUX/$ROOT_IMAGE $ROOT_MOUNT ; then
fatal "Couldnt mount rootfs image"
@@ -97,4 +106,3 @@ case $label in
fatal "Installation image failed"
;;
esac
-
diff --git a/meta/recipes-core/initrdscripts/initramfs-live-boot_1.0.bb b/meta/recipes-core/initrdscripts/initramfs-live-boot_1.0.bb
index b404f8c..e85a0e1 100644
--- a/meta/recipes-core/initrdscripts/initramfs-live-boot_1.0.bb
+++ b/meta/recipes-core/initrdscripts/initramfs-live-boot_1.0.bb
@@ -1,9 +1,10 @@
DESCRIPTION = "A live image init script"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+RDEPENDS = "udev"
SRC_URI = "file://init-live.sh"
-PR = "r6"
+PR = "r7"
do_install() {
install -m 0755 ${WORKDIR}/init-live.sh ${D}/init
--
1.7.2.5
More information about the Openembedded-core
mailing list