Date: Tue, 11 Sep 2018 21:24:38 -0400 From: Rick Miller <vrwmiller@gmail.com> To: wfdudley@gmail.com Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: HELP upgrade 10.3 to 11.2, now it won't boot! Message-ID: <CAHzLAVFNpa4WjVQSwqJJ9q9V0S8b5qBCDVbLjMFNR8Bhi2f89g@mail.gmail.com> In-Reply-To: <CAFsnNZLG3dUyG54qq_WUpLXAYQWSyWkyLET9EGHO1%2Bvy=p67FQ@mail.gmail.com> References: <CAFsnNZLG3dUyG54qq_WUpLXAYQWSyWkyLET9EGHO1%2Bvy=p67FQ@mail.gmail.com>
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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
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