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mx.microsoft.com 1; spf=pass smtp.mailfrom=citrix.com; dmarc=pass action=none header.from=citrix.com; dkim=pass header.d=citrix.com; arc=none Date: Mon, 26 Apr 2021 11:30:26 +0200 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Stephen Walker-Weinshenker CC: Subject: Re: [SUSPECTED SPAM]Re: HEADS UP: FreeBSD/Xen dom0 UEFI support Message-ID: References: Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-ClientProxiedBy: MR2P264CA0036.FRAP264.PROD.OUTLOOK.COM (2603:10a6:500::24) To DS7PR03MB5608.namprd03.prod.outlook.com (2603:10b6:5:2c9::18) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 91ae0726-5480-4abe-19fd-08d90895f0a3 X-MS-TrafficTypeDiagnostic: DM5PR03MB2492: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:10000; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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I am new to Xen and FreeBSD but am > > willing > > > to help test this and get it in a release version. > > > > > > I have 3 Intel NUC 8v5PNK that I am planning on using for Xen hosts, but > > > they can only boot in UEFI mode (intel disabled BIOS booting per their > > > official documentation even though it is still an option in the BIOS > > > /shrug). Until this patch came along I could not get any Xen distribution > > > to boot since they all require BIOS mode. > > > > > > I have 2 of the 3 NUCS running 14.0-CURRENT at git commit > > > 55fc118be8f0cd20e2123cfd2728c5f32317a9fa (after your patch was merged) > > and > > > I have attempted to follow the instructions at > > > > > https://docs.freebsd.org/en_US.ISO8859-1/books/handbook/virtualization-host-xen.html > > > in order to get the Xen kernel booting. Unfortunately, when I rebooted > > > after making the changes, I get an error saying: > > > > > > >Loading Xen kernel... > > > >Failed to load Xen kernel '/boot/xen' > > > >can't load 'kernel' > > > > > > > >can't load 'kernel' > > > > Did you update the loader on the EFI partition? > > > > After an installworld on my box I would usually do: > > > > # mount -t msdosfs /dev/ada0p1 /mnt/ > > # cp /boot/loader.efi /mnt/EFI/freebsd/loader.efi > > # umount /mnt > > > > To update the EFI loader. You might have to check the output of > > `efibootmgr -v`to make sure you are replacing the correct loader. I > > guess there must also be a way to do this with efibootmgr. > > > > For whatever reason my EFI partition nvd0p1 was already mounted at > /boot/efi, > so my copy command was > # cp -f /boot/loader.efi /boot/efi/efi/freebsd/loader.efi > > I did this prior to the last reboot after changing the boot config as > recommended by > > This fixed the issue of the xen kernel not booting on one of the boxes. > (did the copy prior to the final reboot) Looks like I will have to > reinstall the OS on the other one (not a big deal) > > Now, I am just getting a blank screen on boot. I am unable to ssh into the > Dom0 either. What's your Xen command line? (ie: xen_cmdline string in loader.conf) Which version of Xen are you using? Do you have serial output available on those boxes? That might help get some messages if everything else fails. Roger.