Cannot install using serial console

Jeremie Le Hen jeremie at
Tue Sep 7 15:07:40 UTC 2010

Hi list,

=> Please Cc: me when replying, as I am not subscribed. <=

I tried to install FreeBSD (201008 -CURRENT snapshot, but I don't think
it's important here) in a KVM-backed virtual machine on a headless Linux
host, following section 2.12.1 of the handbook.

I've rebuilt the ISO image with the following lines in boot/loader.conf:

The kernel boots correctly (see output below) but the output invariably
stalls after the following lines:
	Trying to mount root from ufs:/dev/md0

(Yes, only one `l'.)

Any idea?

/boot/kernel/kernel text=0x919885 data=0xe7a54+0x203be0 syms=[0x4+0xa25d0+0x4+0xde647]
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2010 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-CURRENT-201008 #0: Tue Aug  3 20:41:56 UTC 2010
    root at i386
WARNING: WITNESS option enabled, expect reduced performance.
CPU: QEMU Virtual CPU version 0.9.1 (2667.06-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x663  Family = 6  Model = 6  Stepping = 3
  AMD Features=0xe0100800<SYSCALL,NX,LM,3DNow!+,3DNow!>
  AMD Features2=0x4<SVM>
real memory  = 268435456 (256 MB)
avail memory = 239321088 (228 MB)
Event timer "LAPIC" frequency 0 Hz quality 500
ioapic0: Changing APIC ID to 1
ioapic0 <Version 1.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: <QEMU QEMURSDT> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xb008-0xb00b on acpi0
cpu0: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci_link0: BIOS IRQ 9 does not match initial IRQ 10
pci0: <ACPI PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 1.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX3 WDMA2 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xc000-0xc00f at device 1.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
uhci0: <Intel 82371SB (PIIX3) USB controller> port 0xc020-0xc03f irq 11 at device 1.2 on pci0
uhci0: [ITHREAD]
usbus0: controller did not stop
usbus0: <Intel 82371SB (PIIX3) USB controller> on uhci0
pci0: <bridge> at device 1.3 (no driver attached)
vgapci0: <VGA-compatible display> mem 0xc2000000-0xc3ffffff,0xc4000000-0xc4000fff at device 2.0 on pci0
re0: <RealTek 8139C+ 10/100BaseTX> port 0xc100-0xc1ff mem 0xc4001000-0xc40010ff irq 11 at device 3.0 on pci0
re0: Chip rev. 0x74800000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rlphy0: <RealTek internal media interface> PHY 0 on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
re0: Ethernet address: 54:52:00:78:4a:3e
re0: [FILTER]
pci0: <memory, RAM> at device 4.0 (no driver attached)
atrtc0: <AT realtime clock> port 0x70-0x71,0x72-0x77 irq 8 on acpi0
atrtc0: [FILTER]
Event timer "RTC" frequency 32768 Hz quality 0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [ITHREAD]
psm0: model IntelliMouse Explorer, device ID 4
fdc0: <floppy drive controller> port 0x3f2-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: does not respond
device_attach: fdc0 attach returned 6
uart0: <Non-standard ns8250 class UART with FIFOs> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
uart0: [FILTER]
uart0: console (9600,n,8,1)
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x100>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
attimer0: <AT timer> at port 0x40 on isa0
Timecounter "i8254" frequency 1193182 Hz quality 0
attimer0: Can't map interrupt.
ppc0: parallel port not found.
Timecounter "TSC" frequency 2667064832 Hz quality 800
Starting kernel event timers: LAPIC @ 100Hz, RTC @ 128Hz
Timecounters tick every 10.000 msec
md0: Preloaded image </boot/mfsroot> 4423680 bytes at 0xc1186af4
usbus0: 12Mbps Full Speed USB v1.0
ad0: 10240MB <QEMU HARDDISK 0.9.1> at ata0-master WDMA2
ugen0.1: <Intel> at usbus0
uhub0: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
acd0: CDROM <QEMU DVD-ROM/0.9.1> at ata1-master WDMA2
WARNING: WITNESS option enabled, expect reduced performance.
Root mount waiting for: usbus0
uhub0: 2 ports with 2 removable, self powered
Trying to mount root from ufs:/dev/md0

Jeremie Le Hen

Humans are born free and equal.  But some are more equal than others.

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