Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 12 Sep 2015 12:57:00 -0700
From:      Michael Mitchell <mmitchel@gmail.com>
To:        Tim Kientzle <tim@kientzle.com>
Cc:        freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: single user mode freebsd11/rpi2
Message-ID:  <CAKtsCdc6maQGc0n29Nw6b7YS--kNSW2fRVSeEKD=jOrgsTi2Ow@mail.gmail.com>
In-Reply-To: <CB3EAA18-A7BB-42B9-AAA2-240D822E9AEF@kientzle.com>
References:  <20150912150433.GA1204@potato.growveg.org> <CB3EAA18-A7BB-42B9-AAA2-240D822E9AEF@kientzle.com>

next in thread | previous in thread | raw e-mail | index | archive | help
the Prolific 2303 drivers -- SUXXOR -- on windows. we had to eliminate all
use of cables like this in our software lab at work, they actually Blue
Screen of Death at the most in opportune time.

http://www.ftdichip.com/Products/Cables/RPi.htm

These don't have the problem with driver crashes.

On Sat, Sep 12, 2015 at 10:41 AM, Tim Kientzle <tim@kientzle.com> wrote:

>
> > On Sep 12, 2015, at 8:04 AM, John <freebsd-lists@potato.growveg.org>
> wrote:
> >
> > Hello list,
> >
> > I need to either make the system single user node by either becoming
> > it (as root, shutdown now) or booting into it (either at the boot prompt
> or
> > with nextboot) and I can do neither, so obviously I'm going about this
> > the wrong way. "shutdown now" never returns a prompt and
> > "nextboot -o "-s" -k kernel *will* boot the kernel after shutdown -p
> > but I get no prompt. Last two lines of output:
> >
> > warning: no time-of-day clock registered, system time will not be set
> accurately
> > random: unblocking device.
> >
> > and there it sits. I left it for 15 mins to make sure it wasn't just
> slow.
> > ctrl-alt-del rebooted the pi but other than that, nothing had any effect.
>
> The default system console is the serial console.
>
> You'll need one of these (or something equivalent):
>
>     http://www.adafruit.com/product/954
>
> Here's a good picture showing how to connect it:
>
>
> http://tinkersphere.com/raspberry-pi-accessories/317-usb-to-ttl-serial-cable-for-raspberry-pi-debugging.html
>
> Note:  The red wire does not need to be connected:  If you do connect it,
> it will provide power and the board will boot, which may or may not be what
> you want.  (In particular, if you have USB accessories plugged into your
> RPI2, the red wire here may not provide enough power.)
>
> This will also give you access to the U-Boot and ubldr prompts.
>
> >
> > How can I make it single user mode? The reason this needs to be done is
> > I need to move some filesystems around.
>
> If you have another FreeBSD machine, you can mount the SD card there to do
> major surgery like this.
>
> Cheers,
>
> Tim
>
> _______________________________________________
> freebsd-arm@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-arm
> To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
>



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAKtsCdc6maQGc0n29Nw6b7YS--kNSW2fRVSeEKD=jOrgsTi2Ow>