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Date:      Tue, 11 Sep 2018 21:58:18 -0400
From:      William Dudley <wfdudley@gmail.com>
To:        Rick Miller <vrwmiller@gmail.com>, freebsd-questions <freebsd-questions@freebsd.org>
Subject:   Re: HELP upgrade 10.3 to 11.2, now it won't boot!
Message-ID:  <CAFsnNZJY45_H+jBH9gfcM1Nu6h2Lnr-Kck2Sa7MG-+75TksueQ@mail.gmail.com>
In-Reply-To: <CAHzLAVGM7AbC=rEq6RCeuHDT5-AJ2tHwgFHsPygtJCyMoPjY4Q@mail.gmail.com>
References:  <CAFsnNZLG3dUyG54qq_WUpLXAYQWSyWkyLET9EGHO1+vy=p67FQ@mail.gmail.com> <CAHzLAVFNpa4WjVQSwqJJ9q9V0S8b5qBCDVbLjMFNR8Bhi2f89g@mail.gmail.com> <CAFsnNZKu5aitRc=WLsuR-3ZMrvyxko+EWmUq5C8tbH_gy=6fTA@mail.gmail.com> <CAHzLAVGM7AbC=rEq6RCeuHDT5-AJ2tHwgFHsPygtJCyMoPjY4Q@mail.gmail.com>

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Rick,

The problem was that my root partition had an "old" name: /dev/ad0s1a,
instead of the
"new" name, /dev/ada0s1a.  I booted a live CD and fixed it, and now it's
booting.

That scared the crap out of me.

I'm not running ZFS -- I try to be as conservative as possible, not wanting
to get bitten
by experimental new tech.  So the boot drive is PATA, UFS.  I have a
gmirror running
on some SATA drives where the data is actually stored.

Thanks very much for your help -- you had the answer.

If you're ever in central New Jersey, let me buy you a beer.  Or equivalent.

Bill Dudley


This email is free of malware because I run Linux.

On Tue, Sep 11, 2018 at 9:52 PM, Rick Miller <vrwmiller@gmail.com> wrote:

>
>
> On Tue, Sep 11, 2018 at 9:28 PM William Dudley <wfdudley@gmail.com> wrote:
>
>> This was a straight upgrade using freebsd-upgrade.  I don't do source
>> builds anymore, since freebsd-upgrade was "reliable".
>>
>> What is the boot loader expecting to find in /etc/fstab ?
>>
>> I can boot live media and fix that, if I know what to change it to.
>>
>
> The device for / in /etc/fstab must be valid. Do you know your partition
> layout? The device in fstab must be the device with root. Check the devices
> returned from '?' at the mountroot prompt. Unfortunately, the circumstances
> surrounding our experiences with this error are quite different and fixing
> the two are different.
>
> Is this ZFS? Are there options to boot an alternate kernel? Tried that?
> Failing that, boot to external media to verify and validate /etc/fstab.
>
>
>> Thanks,
>> Bill Dudley
>>
>>
>>
>> This email is free of malware because I run Linux.
>>
>> On Tue, Sep 11, 2018 at 9:24 PM, Rick Miller <vrwmiller@gmail.com> wrote:
>>
>>>
>>>
>>> On Tue, Sep 11, 2018 at 8:27 PM William Dudley <wfdudley@gmail.com>
>>> wrote:
>>>
>>>> I started the upgrade from 10.3 to 11.2.
>>>>
>>>> I followed all the instructions and all "looked OK" until I got to
>>>> the reboot.
>>>>
>>>> Now the system won't boot.
>>>>
>>>> copied from a photo of the screen:
>>>>
>>>> Mounting from ufs:/dev/ad01e failed with error 19.
>>>>
>>>> (something)dev variables:
>>>> (something)ufs.root.mountfrom=ufs:/dev/ad0s1e
>>>> (something)ufs.root.mountfrom.options=rw
>>>>
>>>> (something)ual root filesystem specification:
>>>> <fstype>:<device> [options]
>>>>       Mount <device> using filesystem <fstype>
>>>>       and with the specified (optional) option list.
>>>>
>>>> e.g. ufs:/dev/da0s1a
>>>>        zfs:tank
>>>>        cd9660:/dev/cd0 r0
>>>>
>>>> and obviously, more stuff intended to be helpful printed below that.
>>>>
>>>
>>> Ugh! This error is the bane of my existence! AFAIK, mountroot() error 19
>>> means the root filesystem cannot be found. vfs.root.mountroot, which is
>>> expected to contain the root filesystem, is derived from /etc/fstab unless
>>> explicitly defined in loader(8)*. Theoretically, you can boot to whatever
>>> root filesystem you may have by defining vfs.root.mountfrom at this prompt.
>>>
>>> Entering '?' at this prompt outputs a list of geom managed disk devices.
>>> The root filesystem is expected to be on one of these.
>>>
>>> It's unclear how the upgrade was attempted (e.g. freebsd-update(8) or
>>> source update). I've observed this error most when PXE booting bootonly
>>> media, never during an OS upgrade.
>>>
>>> You may be able to resolve it by booting the system to external media
>>> and mounting the disk with the root filesystem and modifying /etc/fstab.
>>>
>>> * https://twitter.com/hostileadmin/status/1035887403821686784
>>>
>>> --
>>> Rick
>>>
>>
>>
>
> --
> Take care
> Rick Miller
>



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