grep remount systemd-debug.log
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: ConditionVirtualization=!container succeeded.
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: ConditionPathExists=/etc/fstab succeeded.
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Passing 0 fds to service
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: About to execute: /lib/systemd/systemd-remount-fs
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Forked /lib/systemd/systemd-remount-fs as 310
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Changed dead -> start
Oct 23 18:10:44 T450s systemd[310]: systemd-remount-fs.service: Executing: /lib/systemd/systemd-remount-fs
Oct 23 18:10:44 T450s systemd-remount-fs[310]: Remounting /
Oct 23 18:10:44 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro
Oct 23 18:10:44 T450s systemd[1]: Received SIGCHLD from PID 310 (systemd-remount).
Oct 23 18:10:44 T450s systemd[1]: Child 310 (systemd-remount) died (code=exited, status=0/SUCCESS)
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Child 310 belongs to systemd-remount-fs.service
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Main process exited, code=exited, status=0/SUCCESS
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Changed start -> exited
Oct 23 18:10:44 T450s systemd[1]: systemd-remount-fs.service: Job systemd-remount-fs.service/start finished, result=done
Oct 23 18:10:46 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,data=ordered,commit=600
Oct 23 18:10:47 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,data=ordered,commit=600
Oct 23 18:10:48 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,data=ordered,commit=600
Oct 23 18:10:48 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,data=ordered,commit=600
Oct 23 18:10:49 T450s kernel: EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro,data=ordered,commit=600