Date: Thu, 23 Jan 2025 23:50:26 -0700 From: Warner Losh <imp@bsdimp.com> To: Garrett Wollman <wollman@bimajority.org> Cc: Freebsd-stable List <stable@freebsd.org> Subject: Re: not working /dev/console Message-ID: <CANCZdfp5vJag=z%2Bf-zgWpdxtTZ12xHGGsses5qrCokEZSmSymg@mail.gmail.com> In-Reply-To: <26514.45659.142313.471958@hergotha.csail.mit.edu> References: <DBE9ABDF-092F-4198-9E14-DF2E0AAB3638@cs.huji.ac.il> <Z0bcQvu36o-rqsJn@fc.opsec.eu> <CAA78225-E266-4CBE-807D-B72D9BCE58E8@cs.huji.ac.il> <CANCZdfoQtYLP62rWO6oTHg4ajbV7SK=ehq2jkv1o0ZX8_im0jw@mail.gmail.com> <365D866D-F7D2-4DB6-AFFB-B4C3829D8467@cs.huji.ac.il> <CANCZdfoiJE6-aKKFhafXPMY8FOg4nEBmhf2hN%2BcJXzMVrkyiqg@mail.gmail.com> <26514.45659.142313.471958@hergotha.csail.mit.edu>
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[-- Attachment #1 --] On Thu, Jan 23, 2025, 2:19 PM Garrett Wollman <wollman@bimajority.org> wrote: > Resurrecting an old thread, because I find myself in a position where > I have to get a serial console working on a UEFI-only Dell R360 (with > iDRAC Express, so no remote video console that I can look at). > What version? > > <<On Wed, 27 Nov 2024 09:42:24 -0700, Warner Losh <imp@bsdimp.com> said: > > > But, the tl;dr is likely just adding 'boot_serial=YES' and the > > "hw.uart.console" > > line above to /loader.conf and deleting all the comconsole lines (since > they > > will result in doubled output if the console really is redirected at the > > UEFI > > level, see below for more details on all this :_ > > So this does not seem to be working for me. The server boots and the > loader is accessible over SOL so I am pretty confident that it's > configured correctly on the UEFI side, but when booting the kernel, > the only thing it displays is the initial probe message where it > identifies where the EFI framebuffer is -- nothing else goes to the > serial port. > > OK boot -s > staging 0x1a800000 (not copying) tramp 0x284f1000 PT4 0x1a6e5000 > Start @ 0xffffffff803081e0 ... > EFI framebuffer information: > addr, size 0x40000000, 0x300000 > dimensions 1024 x 768 > stride 1024 > masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 > [then nothing] > > (The system doesn't have a network connection yet, and won't have SSH > enabled when it's finally installed, so I actually need the serial > console to work. I have some other UEFI systems in a remote DC that > hav broken consoles too, but fixing them requires a disruptive outage, > so I'm trying to get it fixed first on a new machine.) > > Running "show" in the loader tells me the followin things are set: > > beastie_disable=YES > boot_multicons=YES > boot_serial=YES > comconsole_pcidev= > comconsole_port=760 > comconsole_speed=115200 > console=efi > efi-version=2.70 > efi_8250_uid=0 > efi_com_speed=115195 > efi_max_resolution=1x1 > hint.uart.1.at=acpi > hint.uart.1.flags=16 > hint.uart.1.port=0x2F8 > hw.uart.console=io:0x2f8,br:115200 > smbios.system.product=PowerEdge R360 > [a bunch of irrelevant stuff elided] > > The loader reports the following in `efi-show` (which if it is > documented at all I do not know where): > > OK efi-show -v ConOut > global NV,BS,RS ConOut = > PciRoot(0x0)/Pci(0x1C,0x4)/Pci(0x0,0x0)/Pci(0x0,0x0)/AcpiAdr(0x80010100),/PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115195,8,N,1)/VenVt100() > Odd band rate. Makes me suspect serial clock rate. But this is from the bios.. OK > OK efi-show -v ConIn > global NV,BS,RS ConIn = > UsbHID(0xFFFF,0xFFFF,0x1,0x1),/PciRoot(0x0)/Pci(0x1F,0x0)/Acpi(PNP0303,0x0),/PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115195,8,N,1)/VenVt100() > > ...ao I'm guessing that this is taking precedence over `boot_serial`? > Is it safe to just swap these around? > Boot -s should do that. If this is 14 can you see if 15 works? I've fixed a few things. Warner > > -GAWollman > > [-- Attachment #2 --] <div dir="auto"><div><br><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Jan 23, 2025, 2:19 PM Garrett Wollman <<a href="mailto:wollman@bimajority.org">wollman@bimajority.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Resurrecting an old thread, because I find myself in a position where<br> I have to get a serial console working on a UEFI-only Dell R360 (with<br> iDRAC Express, so no remote video console that I can look at).<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">What version?</div><div dir="auto"></div><div dir="auto"><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br> <<On Wed, 27 Nov 2024 09:42:24 -0700, Warner Losh <<a href="mailto:imp@bsdimp.com" target="_blank" rel="noreferrer">imp@bsdimp.com</a>> said:<br> <br> > But, the tl;dr is likely just adding 'boot_serial=YES' and the<br> > "hw.uart.console"<br> > line above to /loader.conf and deleting all the comconsole lines (since they<br> > will result in doubled output if the console really is redirected at the<br> > UEFI<br> > level, see below for more details on all this :_<br> <br> So this does not seem to be working for me. The server boots and the<br> loader is accessible over SOL so I am pretty confident that it's<br> configured correctly on the UEFI side, but when booting the kernel,<br> the only thing it displays is the initial probe message where it<br> identifies where the EFI framebuffer is -- nothing else goes to the<br> serial port.<br> <br> OK boot -s<br> staging 0x1a800000 (not copying) tramp 0x284f1000 PT4 0x1a6e5000<br> Start @ 0xffffffff803081e0 ...<br> EFI framebuffer information:<br> addr, size 0x40000000, 0x300000<br> dimensions 1024 x 768<br> stride 1024<br> masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000<br> [then nothing]<br> <br> (The system doesn't have a network connection yet, and won't have SSH<br> enabled when it's finally installed, so I actually need the serial<br> console to work. I have some other UEFI systems in a remote DC that<br> hav broken consoles too, but fixing them requires a disruptive outage,<br> so I'm trying to get it fixed first on a new machine.)<br> <br> Running "show" in the loader tells me the followin things are set:<br> <br> beastie_disable=YES<br> boot_multicons=YES<br> boot_serial=YES<br> comconsole_pcidev=<br> comconsole_port=760<br> comconsole_speed=115200<br> console=efi<br> efi-version=2.70<br> efi_8250_uid=0<br> efi_com_speed=115195<br> efi_max_resolution=1x1<br> <a href="http://hint.uart.1.at" rel="noreferrer noreferrer" target="_blank">hint.uart.1.at</a>=acpi<br> hint.uart.1.flags=16<br> hint.uart.1.port=0x2F8<br> hw.uart.console=io:0x2f8,br:115200<br> smbios.system.product=PowerEdge R360<br> [a bunch of irrelevant stuff elided]<br> <br> The loader reports the following in `efi-show` (which if it is<br> documented at all I do not know where):<br> <br> OK efi-show -v ConOut <br> global NV,BS,RS ConOut = PciRoot(0x0)/Pci(0x1C,0x4)/Pci(0x0,0x0)/Pci(0x0,0x0)/AcpiAdr(0x80010100),/PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115195,8,N,1)/VenVt100()<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">Odd band rate. Makes me suspect serial clock rate. But this is from the bios..</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> OK <br> OK efi-show -v ConIn<br> global NV,BS,RS ConIn = UsbHID(0xFFFF,0xFFFF,0x1,0x1),/PciRoot(0x0)/Pci(0x1F,0x0)/Acpi(PNP0303,0x0),/PciRoot(0x0)/Pci(0x1F,0x0)/Serial(0x0)/Uart(115195,8,N,1)/VenVt100()<br> <br> ...ao I'm guessing that this is taking precedence over `boot_serial`?<br> Is it safe to just swap these around?<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">Boot -s should do that. If this is 14 can you see if 15 works? I've fixed a few things.</div><div dir="auto"><br></div><div dir="auto">Warner </div><div dir="auto"><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br> -GAWollman<br> <br> </blockquote></div></div></div>home | help
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