* [PATCH 1/1] init-live.sh: fix media automount failed after booting from usb-drive
2013-06-06 6:31 [PATCH 0/1] init-live.sh: fix media automount failed after booting from usb-drive Hongxu Jia
@ 2013-06-06 6:31 ` Hongxu Jia
0 siblings, 0 replies; 2+ messages in thread
From: Hongxu Jia @ 2013-06-06 6:31 UTC (permalink / raw)
To: openembedded-core
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]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
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
--
1.7.10.4
^ permalink raw reply related [flat|nested] 2+ messages in thread