Date: Wed, 18 Aug 2021 16:53:15 +0200 From: Gerd Hafenbrack <gerd.hafenbrack@gmail.com> To: "Lizbeth Mutterhunt, Ph.D" <lizbethmutterhunt@gmail.com> Cc: freebsd-xen@freebsd.org Subject: Re: another xen-kernel UEFI story Message-ID: <d5c5a55b-5eb7-aa4f-b221-cc23980b1b92@gmail.com> In-Reply-To: <4DAB0DB2-E18D-4024-B80B-FCA2D2F51A45@gmail.com> References: <3839452.BRNeRiNLvY@freebsd_current> <YRVQHmzo5c7Tq3Dn@Air-de-Roger> <9cf13949-3436-ce43-9884-d7a028c940fb@gmail.com> <2659512.iL6vRArjjl@freebsd_current> <f02a63b1-0b48-55ce-7f98-9486216e8ecf@gmail.com> <4DAB0DB2-E18D-4024-B80B-FCA2D2F51A45@gmail.com>
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As all my desktop computer have a RS-232 port, I can't help further. cu, Gerd On 2021-08-18 16:03, Lizbeth Mutterhunt, Ph.D wrote: > Ok, the RS-232 cable arrived yestereday to connect it with my ASUS board shouldn’t be the problem, but how to connect on the other side of a 7 year old Dell Notebook with FreeBSD 14 CURRENT running? I guess I need a USB -> RS232 adapter there, or? And the Raspi would need something like this, too? > > Greetz, > Lizbeth > > P.S.: Clover can boot XEN, but not FreeBSD!? > > > > > > >> Op 13 aug. 2021, om 14:49 heeft Gerd Hafenbrack <gerd.hafenbrack@gmail.com> het volgende geschreven: >> >> Hello lizbeth, >> >> there should be no USB involved at all. >> Just connect the cable of the RS-232 port slot bracket module onto the connector labeled "COM1" on the mainboard. See "10. Serial port connectors (10-1 pin COM1)" in "Chapter 2" on page 2-27 in the P8H77-M PRO user manual E8626. >> https://dlcdnets.asus.com/pub/ASUS/mb/LGA1155/P8H77-M_PRO/E8626_P8H77-M_PRO.pdf >> >> cu, >> Gerd >> >> On 2021-08-13 13:36, lizbethmutterhunt@gmail.com wrote: >>> Op Thursday, 12 August 2021 18:56:29 CEST schreef u: >>>> Hello, >>>> >>>> The ASUS P8H77M-Pro has an internal serial connector onboard. Lizbeth >>>> should get a DB9 male slot bracket with 10 pin internal connector and a >>>> null modem cable. >>>> >>>> Regards, Gerd >>> ok guys, i decided to get some connectors for the rs-232 via usb on both sides >>> and also thought on the cable connect in between. this should take 2-3 days, >>> serial console should be able to /proc the very early preboot. when ready, I >>> will report immidiately. look at this output: >>> grep uart /var/run/dmesg.boot >>> uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 >>> uart0: console (115200,n,8,1) >>> uart0: fast interrupt >>> uart0: PPS capture mode: DCD >>> uart: uart0 already exists; skipping it >>> pcib0: allocated type 4 (0x2f8-0x2f8) for rid 0 of uart1 >>> uart1 failed to probe at port 0x2f8 irq 3 on isa0 >>> pcib0: allocated type 4 (0x3e9-0x3e9) for rid 0 of uart2 >>> uart2 failed to probe at port 0x3e9 irq 4 on isa0 >>> and this I entered up to now: >>> sudo stty -a -f /dev/ttyv1 >>> speed 9600 baud; 90 rows; 320 columns; >>> lflags: -icanon -isig -iexten -echo -echoe -echok -echoke -echonl >>> -echoctl -echoprt -altwerase -noflsh -tostop -flusho -pendin >>> -nokerninfo -extproc >>> iflags: -istrip -icrnl -inlcr -igncr ixon ixoff -ixany -imaxbel -ignbrk >>> -brkint -inpck -ignpar -parmrk >>> oflags: -opost onlcr -ocrnl tab0 -onocr -onlret >>> cflags: cread cs8 -parenb -parodd hupcl clocal -cstopb -crtscts -dsrflow >>> -dtrflow -mdmbuf rtsdtr >>> cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>; >>> eol2 = <undef>; erase = ^?; erase2 = ^H; intr = ^C; kill = ^U; >>> lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q; >>> status = ^T; stop = ^S; susp = ^Z; time = 0; werase = ^W; >>> cu soon, >>> lizbeth >>> thx for help, >>> lizbeth >>>> >>>> On 2021-08-12 18:45, Roger Pau Monné wrote: >>>>> On Thu, Aug 12, 2021 at 03:52:55PM +0200, Lizbeth Mutterhunt, Ph.D wrote: >>>>>>> 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.> >>>>> I think it would be better to get Xen out of the picture here, and >>>>> initially focus on getting a serial console working with plain >>>>> FreeBSD. >>>>> >>>>> Once you have that it should be trivial to attempt to boot >>>>> Xen and get the output on the serial, but first you need to have it >>>>> working properly with plain FreeBSD. >>>>> >>>>> The handbook contains a good section about how to get it working: >>>>> >>>>> https://docs.freebsd.org/en/books/handbook/serialcomms/#serialconsole-setu >>>>> p >>>>> >>>>> But it seems like you will need some help from your hardware vendor in >>>>> order to figure out how to enable Serial Over LAN properly on the >>>>> firmware. >>>>> >>>>> Note that you should be able to get the output of both the FreeBSD >>>>> loader and kernel on the serial console. >>>>> >>>>> Regards, Roger. >
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