Seems the flag is disabled again in linux-4.2.0-16-generic. I've upgraded from Ubuntu 15.04 to Ubuntu 15.10 and my exporting of AuFS is broken now.
** Tags added: wily -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1121699 Title: aufs CONFIG_AUFS_EXPORT build option should be enabled Status in linux package in Ubuntu: Fix Released Status in linux source package in Raring: Fix Released Bug description: This is needed to export aufs filesystems via nfs. This was set in a previous version (in Debian - http://bugs.debian.org /cgi-bin/bugreport.cgi?bug=490079), and released in Ubuntu build for aufs 0+20080719-4 (https://launchpad.net/ubuntu/+source/aufs/0+20080719-4), so this could perhaps be considered a regression (although to be fair aufs and its packaging has undergone significant rewriting since then). Regardless considering aufs is a popular method of supporting large storage systems (among other things) and nfs is a popular method of exporting large storage systems, it would be great if this could be enabled in a future build, unless there is some known contraindication. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1121699/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp