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Date:      Thu, 5 Jul 2018 11:19:27 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: EFI booting from external USB pen drive
Message-ID:  <CANCZdfqpEcvv-dYK-uspaJiXapK-Uko8UFn0gksiti0CRhMGwQ@mail.gmail.com>
In-Reply-To: <F2FA85B0-75AB-4F6A-BF79-93D74F00102C@lists.zabbadoz.net>
References:  <F2FA85B0-75AB-4F6A-BF79-93D74F00102C@lists.zabbadoz.net>

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FAT12 isn't good for UEFI. Use FAT16 or FAT32.

Warner

On Thu, Jul 5, 2018, 9:32 AM Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net=
>
wrote:

> Hi,
>
> while I can boot memstick images just fine (which are created using
> makefs/mkimg), doing the same thing using gpart/newfs_msdos -F 12/.. I
> am not able to get anything that boots.
>
> On a Thinkpad (secure boot is off) from the =E2=80=9Cboot device chooser =
from
> =E2=80=98BIOS=E2=80=99=E2=80=9D I get a quick blank screen and am back at=
 the chooser.
> I=E2=80=99ve tried the gpart =E2=80=9Cthinkpad hack=E2=80=9D as well as t=
rying an MBR (why
> that should work I don=E2=80=99t know but the memstick one does) and GPT
> options of various kinds.
>
>
> Anyone successfully done this lately?
>
>
> /bz
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> freebsd-current@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org=
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>



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