Re: don't know how to load module '/boot/loader'

From: Warner Losh <imp_at_bsdimp.com>
Date: Mon, 11 Dec 2017 16:16:46 -0700
Ooops I lied. r326784 should fix it. Now I have flight attendants yelling
at me to put this computer away....

Warner

On Mon, Dec 11, 2017 at 4:06 PM, Warner Losh <imp_at_bsdimp.com> wrote:

> I'm seeing the same bug in my qemu VM setup. I'm about to land, so won't
> likely be able to fix this until I get to the hotel, but I'm pretty sure
> that I know what caused it. I didn't notice it before the commit (I gotta
> get a better regression suite in place for this stuff, rather than the
> ad-hoc testing I've been able to do).
>
> Warner
>
> On Mon, Dec 11, 2017 at 3:37 PM, Alan Somers <asomers_at_freebsd.org> wrote:
>
>> On Mon, Dec 11, 2017 at 3:30 PM, Warner Losh <imp_at_bsdimp.com> wrote:
>>
>>>
>>>
>>> On Mon, Dec 11, 2017 at 3:26 PM, Alan Somers <asomers_at_freebsd.org>
>>> wrote:
>>>
>>>> On Mon, Dec 11, 2017 at 3:19 PM, Warner Losh <imp_at_bsdimp.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Mon, Dec 11, 2017 at 3:03 PM, Alan Somers <asomers_at_freebsd.org>
>>>>> wrote:
>>>>>
>>>>>> I just upgraded my head machine to r326772.  Now, boot2 can't find the
>>>>>> loader.  Instead, it tries to boot the kernel directly, which fails
>>>>>> because
>>>>>> the ZFS module isn't loaded.  If I break into boot2 and type "boot
>>>>>> /boot/loader" I get the error "don't know how to load module
>>>>>> '/boot/loader'".  I last updated on 30-Nov, so this bug must've been
>>>>>> introduced since then.  Any ideas?
>>>>>>
>>>>>> BTW, I can successfully boot with the following commands:
>>>>>> unload
>>>>>> load /boot/kernel/kernel
>>>>>> load zfs
>>>>>> boot
>>>>>>
>>>>>> http://bayimg.com/iAKmFaAgl
>>>>>
>>>>>
>>>>> I'd bisect :)
>>>>>
>>>>> However, try to update to just before this commit:
>>>>>
>>>>> Author: imp <imp_at_ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
>>>>> Date:   Fri Dec 8 19:57:16 2017 +0000
>>>>>
>>>>>     Create interp class.
>>>>>
>>>>>     Create an interp class. Use it to separate out the different types
>>>>> of
>>>>>     interpreters: forth and simple with function pointers rather than
>>>>>     via #ifdefs.
>>>>>
>>>>>     Obtained from: lua boot loader project
>>>>>         (via https://bsdimp_at_github.com/bsdimp/freebsd.git
>>>>> lua-bootloader)
>>>>>     Sponsored by: Netflix
>>>>>
>>>>>
>>>>>     git-svn-id: svn+ssh://svn.freebsd.org/base/head_at_326712
>>>>> ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
>>>>>
>>>>> would be a good place to start.
>>>>>
>>>>> It's a shame we can't create zpool images with an unpriv'd user
>>>>> command. Would help out the ZFS testing of the boot loader refinement.
>>>>>
>>>>> Warner
>>>>>
>>>>
>>>> If I bisect this, what parts do I need to reinstall each time?  A full
>>>> buildworld would be too slow.  Is it sufficient to reinstall stand?
>>>>
>>>
>>> Just rebuild stand, reinstall it and reboot.
>>>
>>> Also, why are you trying to load /boot/loader from /boot/zfsloader? That
>>> has me confused. The screen shot looks like it found the kernel OK and was
>>> going to boot it, but then you interrupted it, unloaded it and tried to
>>> load /boot/loader. Shouldn't that be /boot/kernel or /boot/kernel.old or
>>> something like that?
>>>
>>> OK is /boot/loader's prompt (boot2 has no such prompt).... maybe the
>>> real bug here is that the menu has stopped working leading to your
>>> confusion...
>>>
>>
>>> Warner
>>>
>>
>> It certainly could be a bug in the menu.  I'm definitely confused,
>> because this is a domain I've seldom dealt with, since it usually just
>> works.  If I'm actually in /boot/loader, then there are two problems:
>> 1) The menu isn't working
>> 2) The loader isn't reading /boot/loader.conf.
>>
>
>
Received on Mon Dec 11 2017 - 22:16:48 UTC

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