I have an embedded device running BusyBox, there are a number of directories mounted with
overlayfs with work and data directories mounted on separate UBI partitions using the following style of command.
The main root filesystem is a
squashfs read only image that's been updated with a newer version. I need to delete the changes that have been made to certain files so that the changes to
squashfs take place. How can I do that?
mount -t overlay etc_overlay -o lowerdir=/etc,upperdir=/mnt/config/.data,workdir=/mnt/config/.work /etc