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| author |   Justin Bronder <jsbronder@cold-front.org> | 2022-02-10 15:23:22 -0500 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2022-02-12 17:05:30 +0000 |
| commit | 4dc7af6d25597ea10ea43e76c7c3d7251462c0e5 (patch) | |
| tree | 57c9afdff71f326b81d0600e9c90d9d3cd2c90ab /meta/recipes-core/initrdscripts/initramfs-framework/finish | |
| parent | 775e3e4ca357bd11ec77cd01ca072c6adca89173 (diff) | |
| download | openembedded-core-4dc7af6d25597ea10ea43e76c7c3d7251462c0e5.tar.gz | |
initramfs-framework: unmount automounts before switch_root
If mounts are left lingering, then after we switch_root, attempts to
modify the block devices will result in an EBUSY with no way to unmount
them. As we're about to switch_root anyways, there isn't much use to
keep anything mounted unless it has the new rootfs.
Signed-off-by: Justin Bronder <jsbronder@cold-front.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core/initrdscripts/initramfs-framework/finish')
| -rwxr-xr-x | meta/recipes-core/initrdscripts/initramfs-framework/finish | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/finish b/meta/recipes-core/initrdscripts/initramfs-framework/finish index 717383ebac..f08a920867 100755 --- a/meta/recipes-core/initrdscripts/initramfs-framework/finish +++ b/meta/recipes-core/initrdscripts/initramfs-framework/finish @@ -12,6 +12,18 @@ finish_run() { fatal "ERROR: There's no '/dev' on rootfs." fi + # Unmount anything that was automounted by busybox via mdev-mount.sh. + # We're about to switch_root, and leaving anything mounted will prevent + # the next rootfs from modifying the block device. Ignore ROOT_DISK, + # if it was set by setup-live, because it'll be mounted over loopback + # to ROOTFS_DIR. + local dev + for dev in /run/media/*; do + if mountpoint -q "${dev}" && [ "${dev##*/}" != "${ROOT_DISK}" ]; then + umount -f "${dev}" || debug "Failed to unmount ${dev}" + fi + done + info "Switching root to '$ROOTFS_DIR'..." debug "Moving /dev, /proc and /sys onto rootfs..." |