Date: Thu, 12 Aug 2021 15:52:55 +0200 From: "Lizbeth Mutterhunt, Ph.D" <lizbethmutterhunt@gmail.com> To: Roger Pau Monn? <royger@freebsd.org> Cc: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org> Subject: Re: another xen-kernel UEFI story Message-ID: <0FD46B61-6556-4912-814F-4A26988CC23E@gmail.com> In-Reply-To: <YRTHM8qN6B3W9mRE@Air-de-Roger> References: <3839452.BRNeRiNLvY@freebsd_current> <YRItEsEb/IaXqE9V@Air-de-Roger> <3837161.BRNeRiNLvY@freebsd_current> <YRJ//ZedH2Cukpzy@Air-de-Roger> <CAPPf1PGp=kdq1ZWp3-TER5TQvm5sE3reZGNGNMSiqH7NR3Sv4Q@mail.gmail.com> <YRTHM8qN6B3W9mRE@Air-de-Roger>
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--Apple-Mail=_FC70A58B-C817-4ACD-8B50-6CCA2DFCCC70 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > Op 12 aug. 2021, om 09:01 heeft Roger Pau Monn=C3=A9 = <royger@freebsd.org> het volgende geschreven: >=20 > Adding the freebsd-xen mailing list again. >=20 > On Wed, Aug 11, 2021 at 12:48:55AM +0200, Lizbeth Mutterhunt, Ph.D = wrote: >> Op Tuesday, 10 August 2021 15:32:45 CEST schreef u: >>> On Tue, Aug 10, 2021 at 02:41:34PM +0200, = lizbethmutterhunt@gmail.com >> wrote: >>>> Op Tuesday, 10 August 2021 09:38:58 CEST schreef u: >>>>> On Mon, Aug 09, 2021 at 05:23:27PM +0200, = lizbethmutterhunt@gmail.com >> wrote: >>>>>> could someone pleas check this link: >>>>>>=20 >> = https://forums.freebsd.org/threads/xen-kernel-doesnt-start-at-all.8155 >>>>>> 6/ >>>>>>=20 >>>>>> does anyone has another idea then duplicating CURRENT and RELEASE >> via >>>>>> Virtualbox or qemu? >>>>>>=20 >>>>>> XEN simply doesn't boot after setting xen_kernel on in >>>>>> /boot/loader.conf, >>>>>> we tried different ways but none worked. It's loading [text], >> [data], >>>>>> [syms] and the preconfig but afterwards there's just the >> reset-button >>>>>> option, because XEN doesn't boot. >>>>>>=20 >>>>>> any help appreciated! >>>>>=20 >>>>> Hello, >>>>=20 >>>> hello royger! >> hija! >>=20 Hello Roger! >>>>=20 >>>>> There are a couple of things to look at, first of all, do you have = a >>>>> serial console attached to the box? >>>>=20 >>>> I guess so, because there are two possibilities to start from via >> primary >>>> and secodary console! >>>=20 >>> The serial console is a port (usually a RS-232) on your box that you >>> attach a cable to and connect to another computer, so you can get >>> early text debug output: >>>=20 >>> https://www.computerhope.com/jargon/s/serial-console.htm >>> https://tldp.org/HOWTO/Remote-Serial-Console-HOWTO/intro-why.html >> Basically I know the RS-232 "live" in the 80s, and I was soldering a = earth- >> cable to connect two PCs without any swith via a deviate of Midnight >> Commander. So first thought, enable serial port in bios; computer = crashing >> at >> xen and crashes when allocating the re0. so disabled again! >=20 > I 'm afraid I'm a bit lost here, so your computer does have some kind > of serial port? No, no RS-232 output of course but a parallel and serial console in the = BIOS! I activated the serial port and got in troubles with booting; = beasties logo has been disabled, so no boot menu to unset the xen_xernel = at boot prompt. XEN never booted anyway. > Do you mean that when you enable the serial port in BIOS (I assume a > Serial Over LAN) Yup! > the re0 network interface stops working.=20 Yes, at the dhclient allocations it stops immediately with no output or = debugger info at all. Also the keyboard was disabled and I couldn=E2=80=99= t press CTRL+C for avoiding DHCPREQUEST. =20 >>=20 >>> There also some boxes that have a virtual serial console like Intel >>> AMT Serial Over LAN: >>>=20 >>> https://en.wikipedia.org/wiki/Intel_Active_Management_Technology >> I guess my active management is on or there's no way to enable it in = the >> BIOS >> (ASUS P8H77M-Pro); pitty, there's no search function in the advanced = bios. >>=20 >> I managed to watch BTX with 4 years and with 8 I got my first = original IBM >> PC >> and compatible. the C64 was later in my development and I'm atoning = all my >> problem adolescence in front of the SNES here with my shell commands. = Would >> I >> just have been become a gamer, I'm considering all the time at that = point >> of >> regression with a problem. But they do have there own, I think! >>=20 >>> If you can setup one of those it would be handy in figuring it = what's >>> wrong, since the serial is initialized way before than the VGA = adapter >>> and could contain a message detailing what went wrong. >> yes! yes! yes! do I need a second computer for it? I could modify my = Raspi >> 4b >> for that or an old notebook! but I think it is a simple .log file >> somewhere. >=20 > Sure, you just need something at the other end of the serial (null > modem) cable. Whether it's an old laptop or a raspberry pi doesn't > make much of a difference. >=20 I make myself a bit trusted with the matter RS-232 and not sure how to = connect those two PCs=E2=80=A6 when there=E2=80=99s some outcome for me = today, I do my best tomorrow, ok? > Regards, Roger. Best regards,=20 Lizbeth= --Apple-Mail=_FC70A58B-C817-4ACD-8B50-6CCA2DFCCC70--
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