sadly even with making the link point to /proc/self7mounts it still happens:
Mar 23 11:55:12 localhost systemd-tmpfiles[628]: [/usr/lib/tmpfiles.d/var.conf:14] Duplicate line for path "/var/log", ignoring. Mar 23 11:55:12 localhost systemd-tmpfiles[628]: symlink(../proc/self/mounts, /etc/mtab) failed: Read-only file system Mar 23 11:55:12 localhost systemd[1]: systemd-tmpfiles-setup.service: Main process exited, code=exited, status=1/FAILURE ** Changed in: systemd (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1547033 Title: make snappy's /etc/mtab symlink agree to tmpfiles.d/debian.conf Status in Snappy: New Status in systemd package in Ubuntu: Confirmed Bug description: booting a snappy system which comes with a readonly file system that carries /etc/mtab as pre-created link in the readonly area of the fs (pointing to /proc/mounts), we always get an error message on boot when systemd-tmpfiles tries to re-create the mtab link. systemd-tmpfiles should instead check if /etc/mtab is already there, is a link and points to the desired target. in this case it should just skip the creation attempt gracefully without error. Feb 17 18:56:51 localhost systemd[1]: Starting Create Volatile Files and Directories... Feb 17 18:56:51 localhost systemd-tmpfiles[631]: [/usr/lib/tmpfiles.d/var.conf:14] Duplicate line for path "/var/log" , ignoring. Feb 17 18:56:51 localhost systemd-tmpfiles[631]: symlink(../proc/self/mounts, /etc/mtab) failed: Read-only file syste m Feb 17 18:56:51 localhost systemd[1]: systemd-tmpfiles-setup.service: Main process exited, code=exited, status=1/FAIL URE To manage notifications about this bug go to: https://bugs.launchpad.net/snappy/+bug/1547033/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp