fopivot() { # <rw_root> <ro_root> <dupe?>
root=$1
{
- if grep -q mini_fo /proc/filesystems; then
+ if grep -q overlay /proc/filesystems; then
+ mount -t overlayfs -olowerdir=/,upperdir=$1 "overlayfs:$1" /mnt && root=/mnt
+ elif grep -q mini_fo /proc/filesystems; then
mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
else
mount --bind / /mnt