Date: Tue, 29 Dec 2020 14:40:17 +0700 From: Victor Sudakov <vas@sibptus.ru> To: Dave Hayes <dave@jetcafe.org> Cc: Rick Miller <vrwmiller@gmail.com>, Graham Perrin <grahamperrin@gmail.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: EFI, UEFI, PXE: FreeBSD-12.1-RELEASE-amd64-bootonly.iso boot from SAN device failed, error 0x7f22208e Message-ID: <20201229074017.GA9211@admin.sibptus.ru> In-Reply-To: <20201228225756.30870717@bigus.dream-tech.com> References: <20201224134403.GB13527@admin.sibptus.ru> <a24b96bd-a446-383d-11b7-601b5b96539a@gmail.com> <CAHzLAVE_1TQYWju=Hy8sCY3=GbE1NSSEr2VGRLE30PKd7Cafaw@mail.gmail.com> <20201225084305.GA60871@admin.sibptus.ru> <CAHzLAVFCKfkxwDg-b25OyQ8Zst4Y__f6g5j7uXJGqtCkbw2Dvw@mail.gmail.com> <20201228152202.4ba4fec9@bigus.dream-tech.com> <20201229022714.GA95031@admin.sibptus.ru> <20201228191306.3edcdab1@bigus.dream-tech.com> <20201229034211.GA98610@admin.sibptus.ru> <20201228225756.30870717@bigus.dream-tech.com>
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--VbJkn9YxBvnuCH5J Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Dave Hayes wrote: > > > > Was this happening over network (PXE boot) or from a physical medium > > > > like USB drive/CD-ROM ? =20 > > >=20 > > > Actually both. However, this thread implied that the mfsBSD/ramdisk > > > techniques did not work, and I wanted to provide a datapoint to the > > > contrary. > > >=20 > > > We have one installation which gets the ISO image over FTP and boots = =66rom > > > that, =20 > >=20 > > Can you please elaborate on that? Is this installation using UEFI or > > legacy mode loader? What tools are used? pxelinux/memdisk or anything e= lse? >=20 > This particular installation is a Dell DRAC that has the capability of bo= oting > given an http url for a bootable iso. There actually is still some problem > booting the hybrid disk in BIOS mode, but UEFI works just fine. Highly > effective on an isolated network.=20 Ah, is this more like IPMI booting, where you can attach an ISO image to the IPMI console which has its own networking stack, management interface etc? >=20 > I don't think this is quite what you are after, though I could be mistake= n.=20 > I did try the PXEBOOT idea on the exact same hardware platform and > was unable to get it to work, back at FreeBSD 10->11.=20 I have pxelinux+pxeboot+mfsBSD working fine, but with legacy BIOS. > Do you know of any technical reading that can get one up to speed on the = low > level details of UEFI booting and how it is different from BIOS? One prob= lem in > debugging all these methods is the ever-present lack of documentation. :/= =20 No, I don't. My knowledge of the thing is very rudimentary. I know that the UEFI "BIOS" looks for the "efi" type partition in the GPT, or for the EF partition in the MBR, finds a EFI executable under some special path like /EFI/BOOT/BOOTX64.EFI, and this EFI executable is supposed to know how to load the main OS. Therefore my cheat sheet for making a UEFI bootable freebsd UFS volume is like this: gpart create -s gpt ada1 # will become ada0 gpart add -s200M -t efi ada1 gpart add -s2G -t freebsd-swap ada1 gpart add -t freebsd-ufs ada1 gpart bootcode -p /boot/boot1.efifat -i 1 ada1 =20 Instead of "gpart bootcode -p /boot/boot1.efifat -i 1 ada1" we can just as well run=20 "newfs_msdos /dev/ada1p1 ; mount_msdosfs /dev/ada1p1 /mnt ; rsync -r ... /m= nt" --=20 Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/ --VbJkn9YxBvnuCH5J Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJf6t1hAAoJEA2k8lmbXsY0uBIH/3moH1hCENw4qb1TLFCnx3ZT rpWypI+ilpn133h5vVzKmAo6zYSeDIMxoYlQRYSSKyt5lJAi6mLD6jH/nFmhvuOG MkzvEpLzefHb0i1/cyQg/M0Uga4xgEGH0F8ciLQaPNijwsHY8rPgJ+BaXaqZDhcS FkDPERFkkhL9mVBalOZtXWdazZWH8sitzFDbQI4/BcQa54z8Via0y4mA1ws92Rg/ VUcNteEIKSE6uyL9x+KAx6p+rMFQJ/Bc6g+gNiN2Coq4EI4Orz++iXsDlqftXJ6a A7txjC3wW3i8yLO5M++vWRN59knaMq5loGhcS1U6F15ISSd6nJEaQq65Gw2rdEA= =gBE7 -----END PGP SIGNATURE----- --VbJkn9YxBvnuCH5J--
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