Date: Wed, 17 Sep 2014 01:25:07 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Ed Maste <emaste@FreeBSD.org>, "O. Hartmann" <ohartman@zedat.fu-berlin.de> Cc: FreeBSD Current <freebsd-current@FreeBSD.org>, Nathan Whitehorn <nwhitehorn@FreeBSD.org>, Allan Jude <allanjude@FreeBSD.org> Subject: Re: CURRENT: EFI boot failure Message-ID: <5418B8C3.7040406@FreeBSD.org> In-Reply-To: <CAPyFy2AicKf-PWGDnq80Zmm8ukwTkURZm8RRUFxdfHK=Xd7XAQ@mail.gmail.com> References: <20140916020541.03c18d04.ohartman@zedat.fu-berlin.de> <54178607.1060305@freebsd.org> <541786BE.6010105@freebsd.org> <20140916075121.29989a53.ohartman@zedat.fu-berlin.de> <5417E20D.8070607@freebsd.org> <20140916230348.189e80cd.ohartman@zedat.fu-berlin.de> <CAPyFy2AicKf-PWGDnq80Zmm8ukwTkURZm8RRUFxdfHK=Xd7XAQ@mail.gmail.com>
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On 17/09/2014 00:32, Ed Maste wrote: > On 16 September 2014 17:03, O. Hartmann <ohartman@zedat.fu-berlin.de> wrote: >> >> In that case, is it still /boot/boot1.efifat or is it /boot/boot1.efi? What is the >> difference? Is the efi partition FAT? > > An EFI system partition (ESP) is a FAT-formatted partition with a > specific GPT or MBR identifier and file system hierarchy; EFI firmware > will try to load /EFI/BOOT/BOOTX64.EFI from the ESP. A very useful read about how EFI boot process works and how different OSes boot on top of it: http://homepage.ntlworld.com/jonathan.deboynepollard/FGA/efi-boot-process.html > boot1.efi is an EFI application - that is, a PECOFF format binary. It > searches for a UFS filesystem and loads loader.efi from that. It is > intended to simplify the UEFI boot process, so that loader.efi, the > .4th files, loader.conf etc. do not all need to be installed in the > ESP. > > boot1.efifat is a FAT filesystem image that contains a copy of > boot1.efi as /EFI/BOOT/BOOTX64.EFI. It exists so that the installer > can treat it as opaque bootcode, like other boot schemes. It's > certainly possible to create a partition, use newfs_msdos to format > it, and copy in boot1.efi instead. > >> It is one disk, dedicated to FreeBSD (a laptop disk). Is there any documentation readable >> for non-developer for that matter? I'm curious about how EFI works on FreeBSD. > > Better user-facing documentation is in progress; for now the best > source is probably the wik. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > -- Andriy Gapon
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