On Sat, Apr 10, 2021 at 10:34 PM L A Walsh <lkml@xxxxxxxxx> wrote: > > On 2021/04/08 22:44, Amir Goldstein wrote: > > It is generally not allowed to reuse the upper layer and replace the > > lower layers after overlayfs has been mounted once. > > > > If you say you did not change anything, it is not clear what is the > > benefit of reusing the empty upper layer. > > > --- > I can understand that, the upper layer is an empty fs+work dir You must mean empty fs+upper dir+work dir. No? > with no changes. It was attached to the wrong lower layer, > unattached/unmounted. > > I then made sure both upper+work were both empty and tried again > elsewhere. I want to avoid unnecessary steps, so destroying and recreating > an empty partition didn't seem logical. I am probably missing something. How is this complicated? rmdir upperdir workdir; mkdir upperdir workdir > How do you disassociate a > previous connected state? What needs to be initialized on the > unmounted upper and working dir (on the same fs), to reuse the same > file system? > You need to remove the trusted.overlay.* xattrs, but I still don't understand what's the complication with re-creating two empty dirs. Thanks, Amir.
