Currently, when wiping the update volume via the recovery partition on a
ccimx6ul with singlemtdsys enabled, the procedure fails with this error:
[RECOVERY] Starting recovery...
[RECOVERY] Wipe 'update' partition requested
[RECOVERY] Formatting 'update' ubi volume
ubi0 error: ubi_open_volume.part.0: cannot open device 0, volume 3, error -16
ubiupdatevol: error!: cannot open "/dev/ubi0_3"
error 16 (Device or resource busy)
This is because the logic used to unmount a volume before formatting it is
expecting this entry format when running "mount":
ubi0:update on /mnt/update type ubifs
While this is the format of the "mount" output in userspace for the rootfs
volume, other trivial volumes have this format instead:
ubi0_3 on /mnt/update type ubifs
Adapt the logic to this format so that the "update" volume wipe procedure can
take place.
Signed-off-by: Gabriel Valcazar <gabriel.valcazar@digi.com>
5695cf15db