FreeBSD 5.4/6.0 on Virtual PC 7?

[David Paul Zimmerman]

On Nov 10, 2005, at 1:04 PM, John Baldwin wrote:

> On Thursday ١٠ November ٢٠٠٥ ٠٣:٤٦ pm, Julian H. Stacey wrote:
>> David Paul Zimmerman wrote:
>>> Hi, all.  Both FreeBSD ٥.٤ and ٦.٠ are giving me strange behavior 
>>> when
>>
>> I think you'r right, you don't have a hardware issue there (despite
>> this being on hardware@) but have hit a difference between ٤.x &
>> ٥.x CDROMs.  (A difference between El Torito & not as I recall,
>> they changed between ٤ & ٥ to match the modern drift of BIOS boot
>> methodology)  Maybe searching "man boot" & searching El Torito method
>> on freebsd.org web search box will bring you more.   Good Luck
>
> Those changes only affect the bootstrap to get /boot/loader running, 
> they
> shouldn't affect what the kernel thinks about the CD at all.  I'm 
> curious if
> the ٥.x kernel is finding a CD-ROM drive at all?

 From what I can tell, neither the 5.4 nor the 6.0 kernels see the VPC7 
CD device.  4.11 does, though:

Copyright (c) 1992-2005 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 4.11-RELEASE #0: Fri Jan 21 17:21:22 GMT 2005
     root at perseus.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium Pro (334.98-MHz 686-class CPU)
   Origin = "Virtual CPU "  Id = 0x684
real memory  = 268435456 (262144K bytes)
avail memory = 255705088 (249712K bytes)
Preloaded elf kernel "kernel" at 0xc055c000.
md0: Malloc disk
pcibios: No call entry point
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX host to PCI bridge (AGP disabled)> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xffa0-0xffaf at device 
7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <unknown card> (vendor=0x0000, dev=0x0000) at 7.2
chip1: <Intel 82371AB Power management controller> port 0x440-0x44f irq 
0 at device 7.3 on pci0
pci0: <S3 Trio graphics accelerator> at 8.0
de0: <Digital 21041 Ethernet> port 0xec00-0xec7f mem 
0xfebff000-0xfebfffff irq 11 at device 10.0 on pci0
de0: 21041 [10Mb/s] pass 1.1
de0: address 00:03:ff:c7:19:4c
orm0: <Option ROM> at iomem 0xc0000-0xc9fff on isa0
pmtimer0 on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on 
isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on 
isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
de0: enabling 10baseT port
ad0: 5119MB <Virtual HD> [10402/16/63] at ata0-master WDMA2
acd0: DVD-ROM <Virtual CD> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s1a

		dp