On Thu, Aug 10, 2023 at 14:05:57 +0000, Jeremy C. Reed wrote:
> I saw in mount(8):
>
> "The set of options is determined by first extracting the options for
> the file system from the fstab(5) file ..."
>
> But when I did
>
> mount -u /
>
> Then mount didn't show the "log".
>
> t1:reed$ grep ffs /etc/fstab
> NAME=8ab393d0-4743-11e8-9359-b8ac6fdf499d / ffs
> rw,log 1 1
>
> So then I did
>
> mount -u -o log /
>
> mount then showed:
>
> /dev/dk0 on / type ffs (log, local)
>
> Does the mount -u used the fstab options?
>
> (Sorry I didn't read the code or look at newer versions.)
I'm a bit surprised the man page says that. I can see:
sbin/mount/mount.c:243
/* ignore the fstab file options. */
fs->fs_mntops = NULL;
that has been there for decades. I guess I sort of always
unconsciously assumed that, b/c that seems like the right thing for -u
to do.
-uwe
