HELP upgrade 10.3 to 11.2, now it won't boot!

[William Dudley]

It won't boot single user -- Error 19.

Bill Dudley


This email is free of malware because I run Linux.

On Tue, Sep 11, 2018 at 9:27 PM, Rick Miller <vrwmiller at gmail.com> wrote:

>
>
> On Tue, Sep 11, 2018 at 9:24 PM Rick Miller <vrwmiller at gmail.com> wrote:
>
>>
>>
>> On Tue, Sep 11, 2018 at 8:27 PM William Dudley <wfdudley at 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
>>
>
> Or boot to single user at the beastie menu and attempt the same.
>
> --
> Rick
>