Re: HELP: UEFI/ZFS Boot failure: Ignoring Boot000A: Only one DP found

> On 21 Aug 2019, at 22:30, O. Hartmann <ohartmann_at_walstatt.org> wrote:
> 
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> Am Wed, 21 Aug 2019 22:14:46 +0300
> Toomas Soome <tsoome_at_me.com <mailto:tsoome_at_me.com>> schrieb:
> 
>> If you drop into efi shell, can you start efi/boot/bootx64.efi manually? you should have
>> fs0: or like for ESP.
>> 
>> rgds,
>> toomas
> 
> Hello,
> 
> I can't even stop to gain access to the shell; there is no timeframe to hit any key to stop by
> and access the efi shell. 
> 
> Kind regards,
> oh


hm? efi shell should be available from boot device menu, so you mean, you can not even get into firmware setup?

rgds,
toomas

> 
>> 
>>> On 21 Aug 2019, at 20:58, O. Hartmann <ohartmann_at_walstatt.org> wrote:
>>> 
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>>> I ran into serious trouble booting several boxes off UEFI. On modern hardware,
>>> the ESP is around 200 - 300 MB in size and usually I install
>>> /efi/freebsd/loader.efi, loader.efi taken from /boot/loader.efi. On some older
>>> hardware, specifically on a Lenovo E540 with latest available firmware (2.28),
>>> which uses 12-STABLE and a ZFS-only installation, there seems no working loader
>>> anymore!
>>> The installation of the Laptop has been performed using 12.0-PRERELEASE on an
>>> Samsung EVO 860 500GB SSD. The ESP is 200M in size and contained
>>> /efi/boot/BOOTx64.efi and /efi/boot/startup.nsh.
>>> 
>>> The ESP has been destroyed by accident. Now I tried to solve the problem by
>>> installing a new ESP and the proper loader, assuming that /boot/loader.efi
>>> (taken from a FreeBSD-13-CURRENT or from 12-STABLE of the same revision and
>>> sompiled on the same platform (Intel Haswell) as the lost laptop's revison of
>>> the OS is at. But I fail doing so. Somehow Lenovo's firmware is setting up a
>>> lot of UEFI boot numbers as provided via "efibootmgr -b 000X", X some Hex
>>> numer. -b 000A is usually denoted/labeld with "ATA HDD0".
>>> 
>>> Installing the proper boot/loader.efi loader file from 12-STABLE (r351108) and
>>> setting the EFI variable according the following steps:
>>> 
>>> mount -t msdosfs /dev/ada0p1 /mnt (ESP is on GPT partition 1, 0p2 is zroot)
>>> Install then loader.efi either as BOOTx64.efi or loader.efi under
>>> /mnt/efi/boot/ or /mnt/efi/freebsd/ and then set the boot environment
>>> accordingly via
>>> 
>>> delete 000A first:
>>> efibootmgr -B -b 000A
>>> 
>>> create the new efi boot var:
>>> efibootmgr -a -b 000A -c -l /mnt/efi/{freebsd|boot}/{loader.efi|BOOTx64.efi} -L
>>> FreeBSD
>>> 
>>> The result is a non booting system, the Lenovo firmware jumps immediately into
>>> the menu for selecting a proper boot media.
>>> 
>>> The same happens with /boot/boot1.efi installed as loader.efi or BOOTx64.efi
>>> shown above.
>>> 
>>> In case I just brute-force flash the ESP with /boot/boot1.efifat, dd
>>> if=boot1.efifat of=/dev/ada0p1 (ESP) (taken from the propper 12-STABLE system I
>>> spoeke of above), then booting fails again, but this time with an error I watch
>>> on so many boxes recently:
>>> 
>>> [...]
>>> Ignoring Boot000a: Only one DP found
>>> Trying ZFS pool
>>> Setting currdev to zfs:zroot/ROOT/default:
>>> 
>>> Then the console freezes at that point and only RESET or POWER OFF is capable
>>> of a revive.
>>> 
>>> What is wrong here? What am I missing?
>>> 
>>> Thanks in advance,
>>> 
>>> oh
>>> 
>>> 
>>> - -- 
>>> O. Hartmann
>>> 
>>> Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
>>> Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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> 
> 
> 
> - -- 
> O. Hartmann
> 
> Ich widerspreche der Nutzung oder Übermittlung meiner Daten für
> Werbezwecke oder für die Markt- oder Meinungsforschung (§ 28 Abs. 4 BDSG).
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