Bug#315978: [sparc64] can't net install on v210

[Dave Love <d.love@dl.ac.uk>]

More info on this...

The sparc list reports that tg3 is known not to work since it needs
firmware which has been removed.  In that case I think the driver
should be removed and this should be documented, especially as it
isn't clear the driver has failed with a 2.6 kernel.

I found an hme card and did a net install via that.  The disk had
Solaris on it originally, intended for dual boot and the installation
trashed it.  On the reboot after initial installation, it booted
solaris, not silo, which failed like this:

  Rebooting with command: boot                                          
  Boot device: disk  File and args: 
  SunOS Release 5.10 Version Generic 64-bit
  Copyright 1983-2005 Sun Microsystems, Inc.  All rights reserved.
  Use is subject to license terms.
  WARNING: /pci@1c,600000/scsi@2/sd@0,0 (sd0):
          Corrupt label - bad geometry
  
          Label says 71135847 blocks; Drive says 71132959 blocks
  WARNING: /pci@1c,600000/scsi@2/sd@0,0 (sd0):
          Corrupt label - bad geometry
  
          Label says 71135847 blocks; Drive says 71132959 blocks
  WARNING: /pci@1c,600000/scsi@2/sd@0,0 (sd0):
          Corrupt label - bad geometry
  
          Label says 71135847 blocks; Drive says 71132959 blocks
  Cannot mount root on /pci@1c,600000/scsi@2/disk@0,0:a fstype ufs
  
  panic[cpu0]/thread=180e000: vfs_mountroot: cannot mount root
  
  000000000180b960 genunix:vfs_mountroot+290 (800, 200, 200, 1835200, 11cac00, 187f400)
    %l0-3: 0000000000000000 000000000109c268 000000000109c000 000000000109c34c
    %l4-7: 000000000109c000 000000000109c068 00000000018ad400 0000000000000600
  000000000180ba20 genunix:main+88 (1813c98, 1011c00, 1834340, 18a7c00, 0, 1813800)
    %l0-3: 000000000180e000 0000000000000001 000000000180c000 0000000001835200
    %l4-7: 0000000070002000 0000000000000001 000000000181ba54 0000000000000000
  
  skipping system dump - no dump device configured
  rebooting...

I started again, repartitioning the disk as the installer showed no
partitions, so it really was clobbered.  Then the reboot fails
similarly to this with either a 2.4 or 2.6 kernel install:

  SILO Version 1.4.9
  boot: 
  Allocated 8 Megs of memory at 0x40000000 for kernel
  Uncompressing image...
  Loaded kernel version 2.6.8
  Loading initial ramdisk (3227648 bytes at 0x1F802000 phys, 0x40C00000 virt)...
  |
  Remapping the kernel...      ERROR: Last Trap: Fast Instruction Access MMU Miss
  
  Error -256 
  ok