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initramfs-framework: move storage mounts to actual rootfs

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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!

(From OE-Core rev: ec53ffd01972d1be2d6a28de828b3f0b80dc1e61)

Signed-off-by: Awais Belal <awais_belal@mentor.com>
Signed-off-by: Muhammad Hamza <muhammad_hamza@mentor.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Muhammad Hamza
2022-06-17 10:50:22 +05:00
committed by Richard Purdie
parent 4fb44ddc00
commit af80b23aee
1 changed files with 9 additions and 0 deletions
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9
meta/recipes-core/initrdscripts/initramfs-framework/finish
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@@ -26,6 +26,15 @@ 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