Re: another xen-kernel UEFI story
- Reply: Roger Pau Monné : "Re: another xen-kernel UEFI story"
- In reply to: Roger Pau Monné : "Re: another xen-kernel UEFI story"
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Date: Thu, 12 Aug 2021 13:52:55 UTC
> Op 12 aug. 2021, om 09:01 heeft Roger Pau Monné <royger@freebsd.org> het volgende geschreven: > > Adding the freebsd-xen mailing list again. > > 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: >>>>>> >> https://forums.freebsd.org/threads/xen-kernel-doesnt-start-at-all.8155 >>>>>> 6/ >>>>>> >>>>>> does anyone has another idea then duplicating CURRENT and RELEASE >> via >>>>>> Virtualbox or qemu? >>>>>> >>>>>> 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. >>>>>> >>>>>> any help appreciated! >>>>> >>>>> Hello, >>>> >>>> hello royger! >> hija! >> Hello Roger! >>>> >>>>> There are a couple of things to look at, first of all, do you have a >>>>> serial console attached to the box? >>>> >>>> I guess so, because there are two possibilities to start from via >> primary >>>> and secodary console! >>> >>> 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: >>> >>> 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! > > 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. Yes, at the dhclient allocations it stops immediately with no output or debugger info at all. Also the keyboard was disabled and I couldn’t press CTRL+C for avoiding DHCPREQUEST. >> >>> There also some boxes that have a virtual serial console like Intel >>> AMT Serial Over LAN: >>> >>> 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. >> >> 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! >> >>> 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. > > 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. > I make myself a bit trusted with the matter RS-232 and not sure how to connect those two PCs… when there’s some outcome for me today, I do my best tomorrow, ok? > Regards, Roger. Best regards, Lizbeth