Re: ZFSROOT UEFI boot

From: Steven Hartland <steven_at_multiplay.co.uk>
Date: Sat, 30 Jan 2016 12:53:46 +0000
I just realised an important point, does your usb disk have a UFS
root partition and your internal disk ZFS root partition?

If so then I know what the issue is, I'll have quick look now, so wait for
a diff5 to appear before testing.
On Saturday, 30 January 2016, Steven Hartland <steven_at_multiplay.co.uk>
wrote:

> I did some more work on the review last night, if you could apply the
> latest patch set diff4 to see if that helps.
>
> If not compile with debugging using -DEFI_DEBUG on your make line then you
> will get a lot more information about which disk is being used to load from
> as well as info about the probe order.
>
> What you should see is that the disk you boot from (where boot1 is loaded
> from) should be probed first and hence get flagged as successful
> (preferred).
>
> This also shows up as * instead of + in the non-debug boot process.
>
> If this happens you should see loader.efi loaded from this disk and then
> the kernel.
>
> The debug output is verbose so you may need a serial console to be able to
> capture the output easily.
>
> Thanks for testing so far hopefully we can nail this soon 😊
> On Saturday, 30 January 2016, Tomoaki AOKI <junchoon_at_dec.sakura.ne.jp
> <javascript:_e(%7B%7D,'cvml','junchoon_at_dec.sakura.ne.jp');>> 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
>> > _______________________________________________
>> > freebsd-current_at_freebsd.org mailing list
>> > https://lists.freebsd.org/mailman/listinfo/freebsd-current
>> > To unsubscribe, send any mail to "
>> freebsd-current-unsubscribe_at_freebsd.org"
>> >
>>
>>
>> --
>> 青木 知明  [Tomoaki AOKI]
>>     junchoon_at_dec.sakura.ne.jp
>>     MXE02273_at_nifty.com
>> _______________________________________________
>> freebsd-current_at_freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-current
>> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org
>> "
>>
>
Received on Sat Jan 30 2016 - 11:53:48 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:02 UTC