Re: EFI zfs loader and beadm?

On 03/09/2016 09:40, Andrey Fesenko wrote:
> Hello,
> I'm test EFI boot ZFSroot with BE, this not support now?
> svn 2965489
>
> If i build simplest system
> http://blog.multiplay.co.uk/2015/12/freebsd-10-2-release-efi-zfs-root-boot/
>
> # zfs get -r mountpoint efifpool
> NAME      PROPERTY    VALUE          SOURCE
> efifpool  mountpoint  /mnt/efifpool  default
>
> =>      40  30712240  da0  GPT  (15G)
>         40      1600    1  efi  (800K)
>       1640  30710632    2  freebsd-zfs  (15G)
>   30712272         8       - free -  (4.0K)
>
> system boot nice
>
> If make BE env
>
> # zfs get -r mountpoint efiwpool
> NAME                              PROPERTY    VALUE              SOURCE
> efiwpool                          mountpoint  none               local
> efiwpool/ROOT                     mountpoint  none
> inherited from efiwpool
> efiwpool/ROOT/init                mountpoint  legacy             local
> efiwpool/ROOT/init_at_init           mountpoint  -                  -
> efiwpool/ROOT/init/boot           mountpoint  /media/boot        local
> efiwpool/ROOT/init/tmp            mountpoint  /media/tmp         local
> efiwpool/ROOT/init/usr            mountpoint  /media/usr         local
> efiwpool/ROOT/init/usr_at_init       mountpoint  -                  -
> efiwpool/ROOT/init/usr/home       mountpoint  /media/usr/home
> inherited from efiwpool/ROOT/init/usr
> efiwpool/ROOT/init/usr/home_at_init  mountpoint  -                  -
> efiwpool/ROOT/init/var            mountpoint  /media/var         local
> efiwpool/ROOT/init/var_at_init       mountpoint  -                  -
> efiwpool/ROOT/init/var/crash      mountpoint  /media/var/crash
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/db         mountpoint  /media/var/db
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/db/pkg     mountpoint  /media/var/db/pkg
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/empty      mountpoint  /media/var/empty
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/log        mountpoint  /media/var/log
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/mail       mountpoint  /media/var/mail
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/run        mountpoint  /media/var/run
> inherited from efiwpool/ROOT/init/var
> efiwpool/ROOT/init/var/tmp        mountpoint  /media/var/tmp
> inherited from efiwpool/ROOT/init/var
>
> system not boot.
>
> Not found /boot/loader.efi (in BE system real path
> efiwpool/ROOT/init/boot/loader.efi) if copy this efiwpool/ROOT/init
> (blank in BE system) loader found this (but not found /boot/kernel) I
> can copy this and get a similar system
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192184#c15 (with out
> msdos kernel part), but this ruin BE update mechanism

Your dataset hierarchy is not what beadm expects.  Specifically, you
have /boot separate from /, which I imagine is causing your problem. 
/boot should be part of /.  Also, you have several file systems in the
BE that are usually not in it; I doubt this is part of your boot
failure, though.

For reference, here is my layout, which is mostly the same as the
default installation:

NAME                          USED  AVAIL  REFER  MOUNTPOINT
zroot                         117G   108G    96K  none
zroot/ROOT                   14.8G   108G    96K  none
zroot/ROOT/10.2               444K   108G  6.35G  /
zroot/ROOT/103beta           14.8G   108G  8.75G  /
zroot/ROOT/103beta1             8K   108G  8.17G  /
zroot/ROOT/103beta3             8K   108G  8.75G  /
zroot/home                   97.8G   108G  94.9G  /home
zroot/usr                    3.36G   108G    96K  /usr
zroot/usr/ports               985M   108G   736M  /usr/ports
zroot/usr/src                2.40G   108G  2.19G  /usr/src
zroot/var                    2.19M   108G    96K  /var
zroot/var/audit                96K   108G    96K  /var/audit
zroot/var/crash                96K   108G    96K  /var/crash
zroot/var/log                1.15M   108G   420K  /var/log
zroot/var/mail                360K   108G   120K  /var/mail
zroot/var/tmp                 416K   108G   144K  /var/tmp

Eric