File: //usr/lib/dracut/modules.d/90overlayfs/prepare-overlayfs.sh
#!/usr/bin/sh
command -v getarg > /dev/null || . /lib/dracut-lib.sh
getargbool 0 rd.live.overlay.overlayfs && overlayfs="yes"
getargbool 0 rd.live.overlay.reset && reset_overlay="yes"
if [ -n "$overlayfs" ]; then
if ! [ -e /run/rootfsbase ]; then
mkdir -m 0755 -p /run/rootfsbase
mount --bind "$NEWROOT" /run/rootfsbase
fi
mkdir -m 0755 -p /run/overlayfs
mkdir -m 0755 -p /run/ovlwork
if [ -n "$reset_overlay" ] && [ -h /run/overlayfs ]; then
ovlfsdir=$(readlink /run/overlayfs)
info "Resetting the OverlayFS overlay directory."
rm -r -- "${ovlfsdir:?}"/* "${ovlfsdir:?}"/.* > /dev/null 2>&1
fi
fi