Hello Serge, Am 15.02.2016 um 19:18 schrieb Serge Hallyn: > Quoting Philipp Wendler (ml@xxxxxxxxxxxxxxxxx): >> I would like to mount an overlayfs inside unprivileged user and mount >> namespaces (i.e., the user creating the namespaces is a regular user >> with no special privileges). >> This works mostly fine, but it fails as soon as I try to delete a file >> which exists in the "lower" directory of the overlay, >> because overlayfs then needs to create a "whiteout" file, >> for which it uses a device node with 0/0 device number >> (https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt), >> but I do not have the permission to create device nodes. >> >> Is there any way to make overlayfs work fully in my situation, >> without requiring additional privileges? >> If not, is this something that could be made work in the future? >> Of course, creating arbitrary devices nodes is something that cannot be >> granted to an unprivileged user, but in this case it is only a specific >> device node with device numbers 0/0, and it is a kernel module creating >> the device node on behalf of me. >> >> I am currently using Linux 4.2. To reproduce the problem, > > Exactly what version from where? > > It sounds to me like you're hitting > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1531747 Thank you for pointing this out! This bug is different from my original problem, but now that that one is solved I tried to reproduce this Ubuntu bug, and indeed I am hitting it, too. Greetings, Philipp _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
