Dave Trudgian

Thanks for the follow-up. Glad it is working on RHEL 8.8. Presumably there was some kind of fix in the kernel.

Thanks. These seem interesting: ``` [pid 1684989] readlinkat(AT_FDCWD, "/apps/singularity/3.11.4/var/singularity/mnt/session/final/var", 0xc0000c9a80, 128) = -1 EINVAL (Invalid argument) [pid 1684989] readlinkat(AT_FDCWD, "/apps/singularity/3.11.4/var/singularity/mnt/session/final/var/tmp", 0xc0000c9b00, 128) = -1 EOPNOTSUPP (Operation not supported) ``` But,...

While I remember to ask - could you let us know the exact kernel version that's in use on that box? Thanks!

Thanks - that's useful to know. As it works on EL7 (I assume this is still true)... I'll have a look at what, if anything, has changed in the automounter.

I would expect to see the following error with `enable overlay = driver` with no `image driver` set. ``` FATAL [U=1001,P=116348] StageOne() you need to specify an image driver with...

Hi @wjnadia - Running `singularity build ubuntu.def` on Fedora with proot 5.3.1 I don't see the issue you have - in my case, the `apt-get update` completes successfully. You might...

FYI - there was previous discussion of this / related multiple signature issues in SingularityCE at https://github.com/sylabs/singularity/issues/1150

This is not really going to be an effective way of avoiding the issue. You would have to disable unprivileged user namespaces on the system entirely, *and* disallow `--hostname` through...

Okay. I think we'd consider a PR contributing this, but it's not a high priority to develop unless it affects a broad range of users.

The error `invalid symlink` is being raised from the docker/docker pkg/archive CopyWithTar code.