Re: ZFSROOT UEFI boot

From: Steven Hartland <killing_at_multiplay.co.uk>
Date: Mon, 1 Feb 2016 18:06:14 +0000
Ok thanks, I hoped as much, otherwise we where looking a very broken EFI 
firmware ;-)

I've found and fixed the match issue, so if you could re-test 2 and 3 we 
should be able confirm all is good.

If all is good a confirmation that there's no issues with the rest, but 
no need for output, needed.

     Regards
     Steve

On 01/02/2016 16:19, Tomoaki AOKI wrote:
> Woops! Found mistype in Diff8 report. Sorry. :-(
> Attached is the fixed one. [imagepath line of 1) is fixed.]
>
>
> On Mon, 1 Feb 2016 23:36:27 +0900
> Tomoaki AOKI <junchoon_at_dec.sakura.ne.jp> wrote:
>
>> Thanks in advance.
>> But unfortunately, the boot behavior of Diff7 and Diff8 are changed
>> from Diff6. Back to old problematic behavior.
>>
>> FYI, I re-tested Diff6 (previously built binary) and reproduced the
>> behavior I already reported. (So no new logs for it.)
>>
>> Please see attached 2 files (for Diff7 and Diff8 respectively).
>> In addition to test 2) and 3), 5) [USB boot] for Diff7 and 1) [single
>> drive] for Diff8 are done.
>>
>> Regards.
>>
>>
>> On Sun, 31 Jan 2016 13:58:23 +0000
>> Steven Hartland <killing_at_multiplay.co.uk> wrote:
>>
>>> Thanks for doing that it was very helpful, and I know transcribing from
>>> video would have been quite a time consuming task.
>>>
>>> I noticed a few interesting facts:
>>> 1. It looks like when you boot from ada0 and ada1 its still picking the
>>> same device (according to device order).
>>> Its not 100% clear as your devices are sata which Diff 6 didn't have
>>> decoding for. I've added that now so hopefully we can confirm, also
>>> added output of boot1 imgpath: so we can see what the EFI thinks the
>>> boot device is.
>>> 2. Your usb device path has two message path entries which means
>>> msg_paths_match would result in a false positive for usb devices, this
>>> is now fixed by matching until we see a media path.
>>>
>>> If you can now re-test the following two cases:
>>> 2) Boot from ada0 without USB memstick attached (2 drives).
>>> 3) Boot from ada1 without USB memstick attached (2 drives).
>>>
>>> I'm interested to confirm two things:
>>> 1. If the boot1 imgpath lines do indeed vary
>>> 2. If the "load: '/boot/loader.efi'" line devpath matches the boot1 imgpath.
>>>
>>> The changes from Diff 7 shouldn't effect the outcome of the other tests,
>>> but confirming that too wouldn't hurt but no need for the output.
>>>
>>>       Regards
>>>       Steve
>>> On 31/01/2016 11:43, Tomoaki AOKI wrote:
>>>> I found Diff6 you uploaded to PHABRICATOR. So my report below is based
>>>> on it.
>>>>
>>>> The patched boot1.efi runs as expected (== as you wrote) for me.
>>>>     *boot1.efi without -DEFI_DEBUG isn't tested. Needed?
>>>>
>>>> As I mentioned in my previous post, I have no serial console
>>>> environment. So I took movie of limited tests and typed it.
>>>>
>>>> Which of the tests are typed:
>>>>
>>>>     1) Boot from ada0 removing ada1, no USB memstick attached, ZFS in
>>>>        ada0 has loader.efi. (Single drive config.)
>>>>
>>>>     2) Boot from ada0, no USB memstick attached, ZFS in ada0 has
>>>>        loader.efi.
>>>>
>>>>     3) Boot from ada1, no USB memstick attached, ZFS in ada1 has
>>>>        loader.efi.
>>>>
>>>>     4) Boot from ada1, no USB memstick attached, only UFS in ada0 has
>>>>        loader.efi.
>>>>
>>>>     5) Boot from da0 (USB memstick with memstick.img of head).
>>>>        UFS in da0 has loader.efi and ZFS isn't present in da0.
>>>>        (3 drives [2 drives + USB memstick] config.)
>>>>
>>>> Please see attached text for detail. Are more outputs needed?
>>>>
>>>> Thanks in advance! I'm looking forward to see this MFC'ed before
>>>> releng/10.3 is branched. (Relies on imp_at_'s test?)
>>>>
>>>>    *Will need to be in conjunction with changes after r294265 in head, as
>>>>     currently Diff6 doesn't apply to stable/10.
>>>>
>>>> Regards.
>>>>
>>>>
>>>> On Sat, 30 Jan 2016 19:12:34 +0000
>>>> Steven Hartland <killing_at_multiplay.co.uk> wrote:
>>>>
>>>>> I believe, based on testing, that the from Diff 5 onwards of
>>>>> https://reviews.freebsd.org/D5108 this should work as you expect it i.e.
>>>>>
>>>>> If boot1 is loaded from a device which has either a UFS or ZFS bootable
>>>>> install then this is the device that will be used to boot.
>>>>>
>>>>> If said device has both then the ZFS setup will still be tried first.
>>>>>
>>>>> If you can test in your setup and confirm either way that would be most
>>>>> appreciated.
>>>>>
>>>>>        Regards
>>>>>        Steve
>>>>>
>>>>> On 30/01/2016 06:57, Tomoaki AOKI wrote:
>>>>>> Thanks for your quick support!
>>>>>> I tried your patch [Diff1] (built with head r295032 world/kernel) and
>>>>>> now have good and bad news.
>>>>>>
>>>>>> Good news is that without USB memstick boot1.efi runs as expected.
>>>>>> Great!
>>>>>>
>>>>>> Bad news is that when booting from USB memstick (the one I used my
>>>>>> previous test, boot1.efi [bootx64.efi] and loader.efi is replaced) and
>>>>>> whichever of internal disk (ada[01]) have loader.efi in its ZFS pool,
>>>>>> ada[01] is booted instead of da0 (USB memstick).
>>>>>>
>>>>>>      *If ada0 has loader.efi, always booted from ada0 (stable/10).
>>>>>>      *If ada0 doesn't have loader.efi and ada1 has, booted from ada1
>>>>>>       (head).
>>>>>>      *If both ada0 and ada1 don't have loader.efi, da0 (USB memstick) is
>>>>>>       booted (head, installer is invoked).
>>>>>>
>>>>>>     *Whichever ada[01] has loader.efi in their UFS or not didn't matter.
>>>>>>
>>>>>> These behaviour would be because ZFS thoughout all disks is tried
>>>>>> before trying UFS throughout all disks, if I understood correctly.
>>>>>>
>>>>>> Changing boot order (ZFS to UFS per each disk, instead of each
>>>>>> ZFS to each UFS) would help.
>>>>>> But providing ZFS-disabled boot1.efi (boot1ufs.efi?) for installation
>>>>>> media (memstick, dvd, ...) helps, too. I built ZFS-disabled boot1.efi
>>>>>> and it worked fine for USB memstick for me.
>>>>>>
>>>>>>     *`make clean && make -DMK_ZFS=no` in sys/boot/efi/boot1 didn't disabled
>>>>>>       ZFS module, so I must edit the definition of *boot_modules[] in
>>>>>>       boot1.c. I'd have been missing something.
>>>>>>
>>>>>> Regards.
>>>>>>
>>>>>>
>>>>>> On Fri, 29 Jan 2016 02:58:26 +0000
>>>>>> Steven Hartland <killing_at_multiplay.co.uk> wrote:
>>>>>>
>>>>>>> On 28/01/2016 16:22, Doug Rabson wrote:
>>>>>>>> On 28 January 2016 at 15:03, Tomoaki AOKI <junchoon_at_dec.sakura.ne.jp> wrote:
>>>>>>>>
>>>>>>>>> It's exactly the NO GOOD point. The disk where boot1 is read from
>>>>>>>>> should be where loader.efi and loader.conf are first read.
>>>>>>>>>
>>>>>>>> I just wanted to note that gptzfsboot and zfsboot behaves this way. Boot1
>>>>>>>> looks for loader in the pool which contains the disk that the BIOS booted.
>>>>>>>> It passes through the ID of that pool to loader which uses that pool as the
>>>>>>>> default for loading kernel and modules. I believe this is the correct
>>>>>>>> behaviour. For gptzfsboot and zfsboot, it is possible to override by
>>>>>>>> pressing space at the point where it is about to load loader.
>>>>>>> I believe I understand at least some of your issue now, could you please
>>>>>>> test the code on the following review to see if it fixes your issue please:
>>>>>>> https://reviews.freebsd.org/D5108
>>>>>>>
>>>>>>>         Regards
>>>>>>>         Steve
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>>>>
>>>>
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>>
>> -- 
>> Tomoaki AOKI    junchoon_at_dec.sakura.ne.jp
>
Received on Mon Feb 01 2016 - 17:05:58 UTC

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