INTERESTING: In the new kernels, you can still write new files and read them. You cannot read files written in 'old' kernels.
But when booting the old kernel, you can read ALL files, including the one written using the newer kernel! Booting back in 4.8, 4.10 or 4.12, and again you can only read the new file, not the old files. Are there some kind of stricter options that are backwards compatible since 4.8? -- 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/1682410 Title: ecryptfs-utils not working properly with linux kernel 4.8.0-41-generic Status in linux package in Ubuntu: Expired Bug description: I have two systems that have a Dropbox folder synced. One of the subfolders contains sensitive data encrypted using ecryptfs. Both were running linux kernel 4.4.0-53-generic. I have since upgraded one system to use linux kernel 4.8.0-41-generic. Now, the decrypted directory can no longer see groups and owners or read files. All permissions are replaced by questionmarks. 4.8.0-41-generic $ ll ls: cannot access 'Contracts': No such file or directory ls: cannot access 'Documents': No such file or directory ls: cannot access 'Work': No such file or directory total 12K drwxr-x--- 5 redsandro redsandro 4.0K Mar 31 15:54 ./ drwxr-xr-x 7 redsandro redsandro 4.0K Apr 13 13:24 ../ d????????? ? ? ? ? ? Contracts/ d????????? ? ? ? ? ? Documents/ d????????? ? ? ? ? ? Work/ The other machine still works fine. 4.4.0-53-generic: $ ll total 56K drwxr-x--- 5 redsandro redsandro 12K Apr 4 16:11 ./ drwxr-xr-x 8 redsandro redsandro 4.0K Oct 18 13:25 ../ drwxr-xr-x 3 redsandro redsandro 4.0K Nov 2 18:50 Contracts/ drwxr-xr-x 11 redsandro redsandro 4.0K Mar 9 17:03 Documents/ drwxr-xr-x 3 redsandro redsandro 4.0K Mar 4 2013 Work/ For both machines: $ apt version ecryptfs-utils 111-0ubuntu1.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682410/+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