From: Muhammad Hamza <muhammad_ha...@mentor.com>
Operations such as mkfs fail on devices that are not
switched to the actual rootfs before switch_root is
called. The kernel interprets these devices as still
being used even after unmounting and errors such as
below are seen when the target is fully booted
root@v1000:~# umount /dev/sdb1
root@v1000:~# mkfs.ext4 /dev/sdb1
mke2fs 1.43.8 (1-Jan-2018)
/dev/sdb1 contains a ext4 file system
last mounted on Wed Nov 28 07:33:54 2018
Proceed anyway? (y,N) y
/dev/sdb1 is apparently in use by the system; will not make a filesystem here!
Signed-off-by: Awais Belal <awais_be...@mentor.com>
Signed-off-by: Muhammad Hamza <muhammad_ha...@mentor.com>
Signed-off-by: Alexandre Belloni <alexandre.bell...@bootlin.com>
(cherry picked from commit ec53ffd01972d1be2d6a28de828b3f0b80dc1e61)
Signed-off-by: Steve Sakoman <st...@sakoman.com>
---
.../initrdscripts/initramfs-framework/finish | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/finish
b/meta/recipes-core/initrdscripts/initramfs-framework/finish
index 717383ebac..dee3ab3387 100755
--- a/meta/recipes-core/initrdscripts/initramfs-framework/finish
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/finish
@@ -14,6 +14,15 @@ finish_run() {
info "Switching root to '$ROOTFS_DIR'..."
+ debug "Moving basic mounts onto rootfs"
+ for dir in `awk '/\/dev.* \/run\/media/{print $2}'
/proc/mounts`; do
+ # Parse any OCT or HEX encoded chars such as spaces
+ # in the mount points to actual ASCII chars
+ dir=`printf $dir`
+ mkdir -p "${ROOTFS_DIR}/media/${dir##*/}"
+ mount -n --move "$dir" "${ROOTFS_DIR}/media/${dir##*/}"
+ done
+
debug "Moving /dev, /proc and /sys onto rootfs..."
mount --move /dev $ROOTFS_DIR/dev
mount --move /proc $ROOTFS_DIR/proc
--
2.25.1
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