Having determined that the last bootable install image was 20020311, 
I have network booted my Sony VAIO PCG-SRX7E/P using pxeboot and the
contents of the boot.flp image on an NFS mount.

If the boot process is allowed to progress without interruption, the
kernel panics:

vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0c02> can't assign resources (memory)
psmcpnp0: irq resource info is missing: assuming irq 12

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x6d256d24
fault code              = supervisor write, page not present
instruction pointer     = 0x8:0xc164cf00
stack pointer           = 0x10:0xcb92cd00
frame pointer           = 0x10:0xcb92cd1c
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 27 (irq10: sn0)
trap number             = 12
panic: page fault

syncing disks...
Uptime: 0s
Automatic reboot in 15 seconds - press a key on the console to abort
--> Press a key on the console to reboot.
--> or switch off the system now.

* Setting 'OK set boot_verbose' indicates that 

Device configuration finished.
bpf: lo0 attached

* Setting 'OK set hint.sn.0.disabled=1' resolves the issue and allows
  the machine to boot into the installer, and complete installation.

On reboot, the classic symptoms of pcic unhappiness appear -- the boot
process freezes after ad0: is recognized.

As in the past, Werner Losh's recommended

OK set hw.pcic.intr_path=1
OK set hw.pcic.irq=0
OK boot

resolves the issue.  (Stay calm, there is a pause while the Memory
Stick times-out with the typical 15s SCSI delay.)

Now to the psm0 problem...


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