From 28c40dcf389f48670a767c8a15ce5ed2101d1fb3 Mon Sep 17 00:00:00 2001 From: Hongxu Jia Date: Thu, 6 Jun 2013 14:31:17 +0800 Subject: [PATCH] init-live.sh: fix media automount failed after booting from usb-drive 1, This issue happens to BSP only. After a BSP board is booted with Yocto linux from USB drive, "cat /proc/mounts" shows: ... /dev/sda3 /media/sda3 ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/sda1 /media/sda1 ext3 rw,relatime,errors=continue,barrier=1,data=ordered 0 0 /dev/sda2 /media/sda2 ext3 rw,relatime,errors=continue,user_xattr,acl,barrier=1,data=ordered 0 0 ... but actually the directory /media/sda1 doesn't exist at all, "df" shows: ... df: /media/sda3: No such file or directory df: /media/sda1: No such file or directory df: /media/sda2: No such file or directory ... 2, This is because the mount data comes from proc setup during early boot before the change root, which then uses a different root filesystem, the media is not in the new root filesystem. 3, During early boot before switch_root, use `mount --move' to move all medias to the new root filesystem could also fix this issue. [YOCTO #2064] [YOCTO #3705] (From OE-Core rev: 79bd773cc5e8b8e873cabeb2b9a91f460501dad7) Signed-off-by: Hongxu Jia Signed-off-by: Saul Wold Signed-off-by: Richard Purdie --- meta/recipes-core/initrdscripts/files/init-live.sh | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/meta/recipes-core/initrdscripts/files/init-live.sh b/meta/recipes-core/initrdscripts/files/init-live.sh index 4bd1b52..804e16e 100644 --- a/meta/recipes-core/initrdscripts/files/init-live.sh +++ b/meta/recipes-core/initrdscripts/files/init-live.sh @@ -79,11 +79,13 @@ boot_live_root() { # Move the mount points of some filesystems over to # the corresponding directories under the real root filesystem. + for dir in `awk '/\/dev.* \/media/{print $2}' /proc/mounts`; do + mkdir -p ${ROOT_MOUNT}/$dir + mount -n --move $dir ${ROOT_MOUNT}/$dir + done mount -n --move /proc ${ROOT_MOUNT}/proc mount -n --move /sys ${ROOT_MOUNT}/sys mount -n --move /dev ${ROOT_MOUNT}/dev - # Move /media/$i over to the real root filesystem - mount -n --move /media/$i ${ROOT_MOUNT}/media/realroot cd $ROOT_MOUNT exec switch_root -c /dev/console $ROOT_MOUNT /sbin/init -- 2.7.4