On Thu, Apr 8, 2021 at 10:18 PM L. A. Walsh <lkml@xxxxxxxxx> wrote: > > Started to try overlay fs w/one fs, but decided on another, so > umounted the first -- hadn't done any changes. > > Then tried a different lower dir (/home) and tried to mount into new > dir /home2. Got: > mount: /home2: mount(2) system call failed: Stale file handle > > any idea why? I cleared out contents of workdir (two empty dirs) > but still didn't work again. > > running a Vanilla-ish self-made kernel version 5.9.2... > don't know what other info I should provide...oh well... > You should normally at least look at kmsg, where you are likely to find "overlayfs: failed to verify upper root origin". 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. Thanks, Amir.
