> Why not use "fstrim --all --verbose" instead? I knew there would be a reason, I just didn't know what it was. The reason is to avoid trimming on ad-hoc mounted devices:
https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/commit/sys-utils/fstrim.service.in?id=0d73ea8bf96b036cc12fae6865158c936705238d https://github.com/karelzak/util-linux/issues/673 https://bugs.debian.org/889668
