solved [Re: FreeBSD current: ZFS root mounted readonly at boot]

[Michael Schuster]

On Wed, Dec 2, 2020 at 12:53 PM Ivailo A. Tanusheff
<ITanusheff at postbank.bg> wrote:
>
> Hi,
>
> Can you provide:
> zpool get all
>
> Regards,
> Ivailo
>
> -----Original Message-----
> From: owner-freebsd-fs at freebsd.org <owner-freebsd-fs at freebsd.org> On Behalf Of Michael Schuster
> Sent: Wednesday, December 2, 2020 10:43 AM
> To: freebsd-fs at freebsd.org
> Subject: Re: FreeBSD current: ZFS root mounted readonly at boot
>
> Hi,
>
> On Sun, Nov 8, 2020 at 8:06 PM Michael Schuster <michaelsprivate at gmail.com> wrote:
> >
> > Hi all,
> >
> > I have a laptop with 12.2 RELEASE (ghostbsd) where I build CURRENT and install it into a separate boot environment (described in the thread "Recipe for compiling and installing CURRENT on 12.x RELEASE in a seperate boot env?" on questions@).
> > After initial difficulties, all zfs datasets I want mounted actually are mounted at boot time, but "/" is mounted read-only, which causes a few error messages in the log(s) and, I suspect, the failure of X to start at boot (I can log in on a text console and run startx fine).
> >
> > What I don't understand (and to which I haven't found anything helpful nor current despite some effort) is this:
> >
> > $ zfs get all $ROOT | grep readonly
> > $ROOT readonly              on                                                  temporary
> >
> > (changing this property - either when booted from this BE or from a 12.2 BE - doesn't change this behaviour at next boot).
> >
> > What can I do to change this? This behaviour is not visible in 12.2
> >
>
>
> does anybody have a comment/opinion on this? Do I need to supply anything specific?

I just realised I sent the reply to Ivailo's question only to him ...
sorry, that wasn't my intention.

Be that as it may: this turned out to be this setting:

root_rw_mount="NO"

in /etc/rc.conf, which seems to have been present (and ignored) since
I installed this machine w. GhostBSD (12.1, then 12.2) in July, and
only with the switch to CURRENT did it take effect, it appears.
setting this to "YES" solved the issue immediately, / is now mounted rw.

thx to all who pitched in.
Michael
-- 
Michael Schuster
http://recursiveramblings.wordpress.com/
recursion, n: see 'recursion'