Hi, Is the Linux support for mounting overlay file system over another overlayfs lowerdir still supported? In kernel 4.1, this seems supported but not in 4.19 and above. //Create lower directoy on an overlayfs mount root@device2:/# mkdir /lower /upper /work /merged //User the 'lower' directory as lowerdir in overlayfs mount root@device2:/# mount -t overlay overlay -o lowerdir=/lower,upperdir=/upper,workdir=/work /merged mount: /merged: wrong fs type, bad option, bad superblock on overlay, missing codepage or helper program, or other error. root@device2:/# mount ... /dev/mmcblk0p9 on /overlay type ext4 (rw,noatime,nodelalloc,data=journal) overlayfs:/overlay on / type overlay (rw,noatime,lowerdir=/,upperdir=/overlay/bank_1,workdir=/overlay/work) ... root@device2:/# Could someone please shed some light on this error. Regards, Santosh
