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Booting OpenBSD without any console output



Hi,

I'm trying to connect a modem to the serial port on my PC Engines
Wrap1E-board and I can't seem to boot a kernel without having anything
sent to the com-port.

This device doesn't have a screen controller so it uses the serial port
for bios and boot messages. It seems like the bios are redirecting pc0
to com0 up until the kernel booting. There is a boot-option to disable
this, but since there is no way for me to get a kernel to boot on pc0 it
makes no difference.

If I boots the a kernel without the PCCOMCONSOLE-option I can boot the
kernel providing I set the tty to com0 in either the boot loader or
/etc/boot.conf. But if I set the tty to pc0 and tries to boot it freezes
just after the entry point message.

I have even tried to set the tty to com1 in boot.conf to see if that
made any difference, but it seems to freeze up in the same way.

I need to find a way to boot a kernel without any messages on the
serial-port.

Thankful for any help, Rickard.


-----------------------------------

Loading;.....
probing: pc0 com0 pci mem[640K 127M a20=on]
disk: hd0
>> OpenBSD/i386 BOOT 2.06
boot> set tty pc0
switching console to pc0
>> OpenBSD/i386 BOOT 2.06
boot> bsd
booting hd0a:bsd: 14062692+352328 [52+108048+95427]=0xdf1128
entry point at 0x100120
[FREEZE]



Loading;.....
probing: pc0 com0 pci mem[640K 127M a20=on]
disk: hd0
>> OpenBSD/i386 BOOT 2.06
boot> set tty com0
switching console to com0
>> OpenBSD/i386 BOOT 2.06
boot> stty com0 57600
com0: changing speed to 57600 baud in 5 seconds, change your terminal to
match!

com0: 57600 baud
boot> bsd
booting hd0a:bsd: 14062692+352328 [52+108048+95427]=0xdf1128
entry point at 0x100120

[ using 203900 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2005 OpenBSD. All rights reserved. 
http://www.OpenBSD.org

OpenBSD 3.7 (TILDECOS020) #0: Thu May 19 14:34:58 CEST 2005
    root_(_at_)_openbsd37cd_(_dot_)_tilde_(_dot_)_se:/root/cvsflashboot/obj/TILDECOS020
RTC BIOS diagnostic error 80<clock_battery>
cpu0: Geode(TM) Integrated Processor by National Semi ("Geode by NSC"
586-class)
 267 MHz
cpu0: FPU,TSC,MSR,CX8,CMOV,MMX
cpu0: TSC disabled
real mem  = 133804032 (130668K)
avail mem = 112906240 (110260K)
using 331 buffers containing 1355776 bytes (1324K) of memory
RTC BIOS diagnostic error 80<clock_battery>
mainbus0 (root)
bios0 at mainbus0: AT/286+(fa) BIOS, date 05/02/05, BIOS32 rev. 0 @ 0xfc5f2
pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000
pcibios0: pcibios_get_intr_routing - function not supported
pcibios0: PCI IRQ Routing information unavailable.
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xe0000/0x8000
cpu0 at mainbus0
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Cyrix GXm PCI" rev 0x00
sis0 at pci0 dev 14 function 0 "NS DP83815 10/100" rev 0x00: DP83816A,
irq 10, a
ddress 00:0d:b9:01:94:e8
nsphyter0 at sis0 phy 0: DP83815 10/100 PHY, rev. 1
sis1 at pci0 dev 15 function 0 "NS DP83815 10/100" rev 0x00: DP83816A,
irq 9, ad
dress 00:0d:b9:01:94:e9
nsphyter1 at sis1 phy 0: DP83815 10/100 PHY, rev. 1
sis2 at pci0 dev 16 function 0 "NS DP83815 10/100" rev 0x00: DP83816A,
irq 11, a
ddress 00:0d:b9:01:94:ea
nsphyter2 at sis2 phy 0: DP83815 10/100 PHY, rev. 1
gscpcib0 at pci0 dev 18 function 0 "NS SC1100 ISA" rev 0x00
gpio0 at gscpcib0: 64 pins
"NS SC1100 SMI/ACPI" rev 0x00 at pci0 dev 18 function 1 not configured
"NS SCx200 IDE" rev 0x01 at pci0 dev 18 function 2 not configured
"NS SCx200 AUDIO" rev 0x00 at pci0 dev 18 function 3 not configured
geodesc0 at pci0 dev 18 function 5 "NS SC1100 X-Bus" rev 0x00: iid 6
revision 3
wdstatus 0
isa0 at gscpcib0
isadma0 at isa0
wdc0 at isa0 port 0x1f0/8 irq 14
wd0 at wdc0 channel 0 drive 0: <STI Flash 7.2.0>
wd0: 1-sector PIO, LBA, 122MB, 250880 sectors
wd0(wdc0:0:0): using BIOS timings
gscsio0 at isa0 port 0x2e/2: SC1100 SIO rev 1: ACB1 ACB2
iic0 at gscsio0
iic1 at gscsio0
lmtemp0 at iic1 addr 0x48: LM77
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom0: console
biomask f1ef netmask ffef ttymask ffef
rd0: fixed, 22528 blocks
dkcsum: wd0 matched BIOS disk 80
root on rd0a
rootdev=0x1100 rrootdev=0x2f00 rawdev=0x2f02
clock: unknown CMOS layout



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