Re: UEFI boot hangs after loader

From: Harry Newton <hn_at_yewbarrow.net>
Date: Wed, 24 Oct 2018 08:55:54 +0100
Re the efibootmgr hang: it appears to be in / under the call to
efidp_format_device_path()  in efibootmgr.c which is called with -v.
Without -v:

gryphon# efibootmgr
BootCurrent: 0002
Timeout : 2 seconds
BootOrder : 0001, 0002
Boot0001* UEFI OS +
Boot0002* UEFI: USB Flash Memory1.00
gryphon#



On 24 October 2018 at 08:13, Harry Newton <hn_at_yewbarrow.net> wrote:

> Booted with the installer image makes efibootmgr to work as you said:
>
> gryphon# efibootmgr -v
> BootCurrent: 0002
> Timeout : 2 seconds
> BootOrder : 0001, 0002
> Boot0001* UEFI OS HD(1,GPT,b19ccd5d-7c6a-11e7-
> ae3e-28b2bde107e4,0x28,0x640)/File(\EFI\BOOT\BOOTX64.EFI)
> ada0p1:/EFI/BOOT/BOOTX64.EFI (null)
>
> However it (efibootmgr) hangs and doesn't return to the shell, though it
> is interruptible with ^C.
>
> The partition listed against Boot0001 is my efi partition.
>
> /H
>
> On 23 October 2018 at 22:51, Kyle Evans <kevans_at_freebsd.org> wrote:
>
>> Hi,
>>
>> I suspect 4th vs. lua has no impact here, given the output shown --
>> can you throw one of the installer images [0] on some removable media
>> and give that a shot for booting? If that works, we can explore UEFI
>> variables from there.
>>
>> efibootmgr will only work on a successful UEFI boot, unfortunately- if
>> we didn't make uefi loader -> kernel transition, then we don't have
>> access to runtime services.
>>
>> Thanks,
>>
>> Kyle Evans
>>
>> [0] https://download.freebsd.org/ftp/releases/amd64/amd64/ISO-IM
>> AGES/12.0/
>>
>> On Tue, Oct 23, 2018 at 4:23 PM Harry Newton <hn_at_yewbarrow.net> wrote:
>> >
>> > I set LOADER_DEFAULT_INTERP=4th and went in /usr/src/stand and re-made
>> the
>> > binaries in /boot but this doesn't solve the problem.  It did copy
>> > /boot/loader_4th.efi to /boot/loader.efi which is (according to uefi(8)
>> > which is what is called from /boot/boot1.efi and which contains the
>> strings
>> > I see on the console before the hang.  But it must then call / read
>> > something else and I don't think it can find it.  Not sure why it
>> doesn't
>> > produce an error message.  I *think* it may be something to do with EFI
>> > variables, but as efibootmgr doesn't work I can't explore this, despite
>> > efirt being in the kernel.
>> >
>> > Suggestions received welcomed, and new suggestions / leads to follow
>> also
>> > very much welcomed.
>> >
>> > /H
>> >
>> >
>> > On 23 October 2018 at 21:33, Harry Newton <hn_at_yewbarrow.net> wrote:
>> >
>> > > Right ... I've the binaries in /boot, freshly made.  This might be a
>> silly
>> > > question ... do I not need to copy them (or dd the boot1.efifat
>> image) to
>> > > the EFI partition ?
>> > >
>> > > /H
>> > >
>> > > On 23 October 2018 at 21:30, Toomas Soome <tsoome_at_me.com> wrote:
>> > >
>> > >> you should have the binaries in boot - just ln (or copy) one to
>> loader.efi
>> > >>
>> > >> rgds,
>> > >> toomas
>> > >>
>> > >>
>> > >> On 23 Oct 2018, at 23:22, Harry Newton <hn_at_yewbarrow.net> wrote:
>> > >>
>> > >> Yes ... so as everything is built, can I just alter
>> LOADER_DEFAULT_INTERP
>> > >> in /etc/make.conf and then reinstall just the loader and boot parts
>> onto
>> > >> the UEFI partition ?  If so, how ?
>> > >>
>> > >>
>> > >> On 23 October 2018 at 21:17, Toomas Soome <tsoome_at_me.com> wrote:
>> > >>
>> > >>> ok, in that case I’d suggest to test out if forth based one is still
>> > >>> working - at least you can get the bootable system. And then there
>> is a
>> > >>> chance to debug the lua version too (note it should be possible to
>> chain
>> > >>> /boot/loader_lua.efi).
>> > >>>
>> > >>> rgds,
>> > >>> toomas
>> > >>>
>> > >>> > On 23 Oct 2018, at 23:08, Harry Newton <hn_at_yewbarrow.net> wrote:
>> > >>> >
>> > >>> > So it's got FORTH in it, but my loader is lua based, and also
>> doesn't
>> > >>> > appear to read loader.rc.
>> > >>> >
>> > >>> > /H
>> > >>> >
>> > >>> > On 23 October 2018 at 21:03, Toomas Soome <tsoome_at_me.com> wrote:
>> > >>> >
>> > >>> >> hm. in that case, whats the content of /boot/loader.rc ?
>> > >>> >>
>> > >>> >> rgds,
>> > >>> >> toomas
>> > >>> >>
>> > >>> >>
>> > >>> >> On 23 Oct 2018, at 23:01, Harry Newton <hn_at_yewbarrow.net> wrote:
>> > >>> >>
>> > >>> >> If boot menu is the screen where you get the options for various
>> > >>> kernels
>> > >>> >> and the picture of the daemon head, no.  It stops at the point
>> in my
>> > >>> email
>> > >>> >> — though not as I said just before the kernel is loaded but in
>> point
>> > >>> of
>> > >>> >> fact before the menu.
>> > >>> >>
>> > >>> >> I've also rebuilt the kernel and still can't use efibootmgr
>> which is
>> > >>> >> puzzling me.
>> > >>> >>
>> > >>> >> /H
>> > >>> >>
>> > >>> >>
>> > >>> >> On 23 October 2018 at 20:56, Toomas Soome <tsoome_at_me.com> wrote:
>> > >>> >>
>> > >>> >>> Do you get boot menu? if so, press esc to get to ok prompt,
>> then type
>> > >>> >>> start - if its bootfort based loader, it will load the kernel
>> and
>> > >>> modules.
>> > >>> >>> lsmod will then list the loaded files.
>> > >>> >>>
>> > >>> >>> If the loader prompt is still usable, then next command would
>> be:
>> > >>> boot
>> > >>> >>>
>> > >>> >>> rgds,
>> > >>> >>> toomas
>> > >>> >>>
>> > >>> >>>> On 23 Oct 2018, at 20:45, Harry Newton <hn_at_yewbarrow.net>
>> wrote:
>> > >>> >>>>
>> > >>> >>>> Just upgraded my Asus UX303L (amd64) from 11-STABLE to
>> 12.0-BETA1
>> > >>> >>> r339529
>> > >>> >>>> by source.  Have a problem with booting which hangs after:
>> > >>> >>>>
>> > >>> >>>>>> FreeBSD EFI boot block
>> > >>> >>>> Loader path: /boot/loader.efi
>> > >>> >>>>
>> > >>> >>>> Initializing modules: ZFS UFS
>> > >>> >>>> Probing 5 block devices ... done
>> > >>> >>>> ZFS found the following pools: zroot
>> > >>> >>>> UFS found no partitions
>> > >>> >>>> Consoles: EFI console
>> > >>> >>>> FreeBSD/amd64 EFI loader, Revision 1.1
>> > >>> >>>>
>> > >>> >>>>   Command line arguments: loader.efi
>> > >>> >>>>   EFI version 2.31
>> > >>> >>>>   EFI Firmware: American Megatrends (rev 4.654)
>> > >>> >>>>   Console: efi(0)
>> > >>> >>>>   Load Path: HD(4, GPT [ ... ]
>> > >>> >>>>   Load Device: Pci Root [ ... ]
>> > >>> >>>>   Boot Current: 0001
>> > >>> >>>>   Boot Order: 0001 [x]
>> > >>> >>>>   Boot Info Path: HS(1, GPT,  [ ... ]  /\EFI\BOOT\BOOTX64.EFI
>> > >>> >>>> -
>> > >>> >>>>
>> > >>> >>>> So it gets into loader.efi which runs but stops I think just
>> before
>> > >>> >>> loading
>> > >>> >>>> the kernel.  Partitions:
>> > >>> >>>>
>> > >>> >>>> =>       40  250069600  ada0  GPT  (119G)
>> > >>> >>>>        40       1600     1  efi  (800K)
>> > >>> >>>>      1640       1024     2  freebsd-boot  (512K)
>> > >>> >>>>      2664       1432        - free -  (716K)
>> > >>> >>>>      4096    4194304     3  freebsd-swap  (2.0G)
>> > >>> >>>>   4198400  245870592     4  freebsd-zfs  (117G)
>> > >>> >>>> 250068992        648        - free -  (324K)
>> > >>> >>>>
>> > >>> >>>> and the EFI partition is FAT 12.
>> > >>> >>>>
>> > >>> >>>> I can't provide (at the moment) any output from efibootmgr:
>> > >>> >>>>
>> > >>> >>>> root_at_gryphon:~ # efibootmgr -v
>> > >>> >>>> efibootmgr: efi variables not supported on this system. root?
>> > >>> kldload
>> > >>> >>> efirt?
>> > >>> >>>> root_at_gryphon:~ # kldload efirt
>> > >>> >>>> kldload: can't load efirt: module already loaded or in kernel
>> > >>> >>>>
>> > >>> >>>> which I don't understand.
>> > >>> >>>>
>> > >>> >>>> I'm going to rebuild the kernel (currently GENERIC) and see if
>> that
>> > >>> >>> allows
>> > >>> >>>> me to load efirt / use efibootmgr.
>> > >>> >>>>
>> > >>> >>>> In the meantime, I should be very grateful for any advice.
>> > >>> >>>>
>> > >>> >>>> ( Currently booting using a 11-RELEASE memstick image and
>> dropping
>> > >>> into
>> > >>> >>> its
>> > >>> >>>> loader to get to the installed 12-STABLE ).
>> > >>> >>>>
>> > >>> >>>> /Harry
>> > >>> >>>> _______________________________________________
>> > >>> >>>> 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_f
>> > >>> >>> reebsd.org"
>> > >>> >>>
>> > >>> >>>
>> > >>> >>
>> > >>> >>
>> > >>> >> --
>> > >>> >> Harry Newton
>> > >>> >>
>> > >>> >>
>> > >>> >>
>> > >>> >
>> > >>> >
>> > >>> > --
>> > >>> > Harry Newton
>> > >>> > _______________________________________________
>> > >>> > 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_f
>> > >>> reebsd.org"
>> > >>>
>> > >>>
>> > >>
>> > >>
>> > >> --
>> > >> Harry Newton
>> > >>
>> > >>
>> > >>
>> > >
>> > >
>> > > --
>> > > Harry Newton
>> > >
>> >
>> >
>> >
>> > --
>> > Harry Newton
>> > _______________________________________________
>> > 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_f
>> reebsd.org"
>>
>
>
>
> --
> Harry Newton
>



-- 
Harry Newton
Received on Wed Oct 24 2018 - 11:14:26 UTC

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