modules.d/90overlayfs/mount-overlayfs.sh

   1 #!/bin/sh
   2
   3 type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
   4
   5 getargbool 0 rd.live.overlay.overlayfs && overlayfs="yes"
   6 getargbool 0 rd.live.overlay.readonly -d -y readonly_overlay && readonly_overlay="--readonly" || readonly_overlay=""
   7
   8 ROOTFLAGS="$(getarg rootflags)"
   9
  10 if [ -n "$overlayfs" ]; then
  11     if [ -n "$readonly_overlay" ] && [ -h /run/overlayfs-r ]; then
  12         ovlfs=lowerdir=/run/overlayfs-r:/run/rootfsbase
  13     else
  14         ovlfs=lowerdir=/run/rootfsbase
  15     fi
  16
  17     if ! strstr "$(cat /proc/mounts)" LiveOS_rootfs; then
  18         mount -t overlay LiveOS_rootfs -o "$ROOTFLAGS,$ovlfs",upperdir=/run/overlayfs,workdir=/run/ovlwork "$NEWROOT"
  19     fi
  20 fi