Tobias Geerinckx-Rice 写道：
>  λ findmnt /gnu/store TARGET     SOURCE                FSTYPE
> OPTIONS
>  /gnu/store /dev/sda1[/gnu/store] bcachefs ro,relatime,…

And just to show I'm not bluffing:

  λ sudo rm -rf /gnu/store
  …
  …
  <phew>
  rm: cannot remove '/gnu/store/…': Read-only file system
  rm: cannot remove '/gnu/store/…': Read-only file system
  rm: cannot remove '/gnu/store/…': Read-only file system
  ^C
  λ

Kind regards,

T G-R