Re: modifying kernel boot parameters

[matthew sporleder <msporleder%gmail.com@localhost>]

On Sun, Nov 1, 2009 at 2:18 AM, Malcolm Herbert <mjch%mjch.net@localhost> wrote:
> On Sat, Oct 31, 2009 at 11:28:49PM +0000, Patrick Welche wrote:
> |On Sat, Oct 31, 2009 at 10:40:50PM +1100, Malcolm Herbert wrote:
> |> I'm able to boot a Soekris net4801 but I can't progress much
> |> further as the net4801 has no video card - I need to modify the
> |> INSTALL_FLOPPY kernel I have to use the serial port ...
> |>
> |> I seem to recall that one could modify an uncompressed kernel to a
> |> certain extent to change these boot parameters, although I can't
> |> recall where I saw that - can anyone give me some pointers?
> |
> |I wonder whether you mean installboot(8), cf -o console=com0 ? don't
> |I known anything about soekris but assume it runs NetBSD/i386?
>
> yes it does, I have a few here running NetBSD which I installed via PXE
> but annoyingly can't recall the details about how I did that now ...
>
> |Then at the boot prompt, you can type consdev com0 for the same effect?
>
> Unfortunately, if I boot using PXE I don't get a chance to type anything
> at the PXE bootloader prompt, as it fails to boot if I interrupt it at
> all ... for example, from powerup I see the following:
>
> |POST: 012345689bcefghipsajklnopqr,,,tvwxy
> |
> |comBIOS ver. 1.33  20080103  Copyright (C) 2000-2007 Soekris Engineering.
> |
> |net4801
> |
> |0256 Mbyte Memory                        CPU Geode SC1100 267 Mhz
> |
> |Pri Mas  ST9160821A                      LBA Xlt 1024-255-63  134 Gbyte
> |
> |Slot   Vend Dev  ClassRev Cmd  Stat CL LT HT  Base1    Base2   Int
> |-------------------------------------------------------------------
> |0:00:0 1078 0001 06000000 0107 0280 00 00 00 00000000 00000000
> |0:06:0 100B 0020 02000000 0107 0290 00 3F 00 0000E101 A0000000 10
> |0:07:0 100B 0020 02000000 0107 0290 00 3F 00 0000E201 A0001000 10
> |0:08:0 100B 0020 02000000 0107 0290 00 3F 00 0000E301 A0002000 10
> |0:18:2 100B 0502 01018001 0005 0280 00 00 00 00000000 00000000
> |0:19:0 0E11 A0F8 0C031008 0117 0280 08 38 00 A0003000 00000000 11
> |
> | 1 Seconds to automatic boot.   Press Ctrl-P for entering Monitor.
> |
> |NSC DP83815/DP83816 Fast Ethernet UNDI, v1.03
> |Copyright (C) 2002, 2003 National Semiconductor Corporation
> |All rights reserved.
> |
> |Pre-boot eXecution Environment  PXE-2.0 (build 082)
> |Copyright (C) 1997-2000  Intel Corporation
> |
> |CLIENT MAC ADDR: 00 00 24 CA 64 48
> |CLIENT IP: 10.0.0.148  MASK: 255.255.255.0  DHCP IP: 10.0.0.254
> |GATEWAY IP: 10.0.0.254
> :
> [ the host pauses here for around 90sec or so ]
> :
> |>> NetBSD/i386 PXE Boot, Revision 1.1
> |>> (builds@wb34, Sat Dec 15 23:18:30 PST 2007)
> |>> Memory: 582/261120 k
> |Press return to boot now, any other key for boot menu
> |Starting in 0
> |PXE BIOS Version 2.1
> |Using PCI device at bus 0 device 6 function 0
> |Ethernet address 00:00:24:ca:64:48
> |net_open: client addr: 10.0.0.148
> |net_open: subnet mask: 255.255.255.0
> |net_open: net gateway: 10.0.0.254
> |net_open: server addr: 10.0.0.1
> |net_open: server path: /data/export/netbsd
> |net_open: file name: pxeboot_ia32.bin
> |3688456+5237460+446920 [303600+286324]=0x9821e4
> :
> [ no further output ]
>
> so, my assumption is that I should be seeing a sysinst screen, but it's
> on the video console I don't have ...
>
> If I try to modify consdev to be the serial port, the following happens:
>
> [ picked up from 90s pause ]
> :
> |>> NetBSD/i386 PXE Boot, Revision 1.1
> |>> (builds@wb34, Sat Dec 15 23:18:30 PST 2007)
> |>> Memory: 582/261120 k
> |Press return to boot now, any other key for boot menu
> |Starting in 0
> |type "?" or "help" for help.
> |> consdev com0
> |
> |>> NetBSD/i386 PXE Boot, Revision 1.1
> |>> (builds@wb34, Sat Dec 15 23:18:30 PST 2007)
> |>> Memory: 582/261120 k
> |> boot
> |PXE BIOS Version 2.1
> |Using PCI device at bus 0 device 6 function 0
> |Ethernet address 00:00:24:ca:64:48
> |net_open: client addr: 10.0.0.148
> |net_open: subnet mask: 255.255.255.0
> |net_open: net gateway: 10.0.0.254
> |net_open: server addr: 10.0.0.1
> |net_open: server path: /data/export/netbsd
> |net_open: file name: pxeboot_ia32.bin
> |read header failed: Input/output error
> |boot: Input/output error
> |>
>
> Any ideas why I can't specify consdev as above? This looks to me to be a
> bug ...
>
> I did attempt to modify the INSTALL_FLOPPY config to use com0 as the
> console and recompiled it, however that doesn't seem to have made any
> difference ...

installboot -e -o console=com0 -o speed=0 -m i386 ./pxeboot_ia32.bin

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