[OE-core] [PATCH 1/1] initramfs-live-boot: Make sure we kill udev before switching root when live booting
Saul Wold
saul.wold at intel.com
Mon Aug 15 23:57:07 UTC 2016
On Tue, 2016-07-26 at 22:10 +0000, Alejandro Hernandez wrote:
> When live booting, we need to make sure the running udev processes
> are killed
> to avoid unexepected behavior, we do this just before switching root,
> once we do, a new udev process will be spawned from init and will
> take care
> of whatever work was still missing
>
> [YOCTO #9520]
>
> Signed-off-by: Alejandro Hernandez
> <alejandro.hernandez at linux.intel.com>
Reviewed-by: Saul Wold <sgw at linux.intel.com>
> ---
> meta/recipes-core/initrdscripts/files/init-live.sh | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh
> b/meta/recipes-core/initrdscripts/files/init-live.sh
> index 09fb479..441b41c 100644
> --- a/meta/recipes-core/initrdscripts/files/init-live.sh
> +++ b/meta/recipes-core/initrdscripts/files/init-live.sh
> @@ -80,7 +80,9 @@ read_args() {
> boot_live_root() {
> # Watches the udev event queue, and exits if all current events
> are handled
> udevadm settle --timeout=3 --quiet
> - killall "${_UDEV_DAEMON##*/}" 2>/dev/null
> + # Kills the current udev running processes, which survived after
> + # device node creation events were handled, to avoid unexpected
> behavior
> + killall -9 "${_UDEV_DAEMON##*/}" 2>/dev/null
>
> # Allow for identification of the real root even after boot
> mkdir -p ${ROOT_MOUNT}/media/realroot
> --
> 2.6.6
>
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