From patchwork Mon Dec 31 07:55:20 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [1/1] init-live.sh: avoid duplicate mount points for the same filesystem Date: Mon, 31 Dec 2012 07:55:20 -0000 From: Qi.Chen@windriver.com X-Patchwork-Id: 41815 Message-Id: <53d2506b4fd5e55c7a3969ae456bea101f170633.1356940443.git.Qi.Chen@windriver.com> To: Cc: Zhenfeng.Zhao@windriver.com From: Chen Qi A live system had duplicate mount points for the same filesystem in the output of 'mount' command. That was because we didn't handle the temporary mounts properly before switch_root. This patch fixes this problem by moving the mount points of some filesystems to the corresponding directories in the real root filesystem. [YOCTO #3155] Signed-off-by: Chen Qi --- meta/recipes-core/initrdscripts/files/init-live.sh | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh b/meta/recipes-core/initrdscripts/files/init-live.sh index e8d7f70..0ae359d 100644 --- a/meta/recipes-core/initrdscripts/files/init-live.sh +++ b/meta/recipes-core/initrdscripts/files/init-live.sh @@ -59,10 +59,11 @@ read_args() { boot_live_root() { killall udevd 2>/dev/null - # use devtmpfs if available - if grep -q devtmpfs /proc/filesystems; then - mount -t devtmpfs devtmpfs $ROOT_MOUNT/dev - fi + # Move the mount points of some filesystems over to + # the corresponding directories under the real root filesystem. + mount -n --move /proc ${ROOT_MOUNT}/proc + mount -n --move /sys ${ROOT_MOUNT}/sys + mount -n --move /dev ${ROOT_MOUNT}/dev cd $ROOT_MOUNT exec switch_root -c /dev/console $ROOT_MOUNT /sbin/init