[FS#1215] `/sbin/block` is not able to mount logical volumes over the `/overlay` directory.

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Tomás Abad (tabad) 

Attached to Project - LEDE Project
Summary - `/sbin/block` is not able to mount logical volumes over the `/overlay` directory. 
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - Some days ago I wrote the topic //[[https://forum.lede-project.org/t/how-to-use-lvm-for-extend-the-root-filesystem/9166|How to use LVM for extend the root filesystem]]//  into //[[https://forum.lede-project.org/c/general|Installing and Using LEDE]]// category of LEDE Forum trying to do exactly that but when the system tryies to mount the logical volume destinated to `/overlay` on boot time, the command `block mount` fails.

Everything information about the bug and the way to reproduce it is wrote in //[[https://forum.lede-project.org/t/how-to-use-lvm-for-extend-the-root-filesystem/9166|How to use LVM for extend the root filesystem]]//.

Thanks in advance,

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1215