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

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

The fundamental problem turned out to be that the system had 1GB of
memory.  Replacing that with 512MB allows the installer to proceed.

However, it won't load the driver for the onboard ethernet with a 2.4
kernal (`error on modprobe -v tg3').  A modprobe in the shell
produces:

  Using /lib/modules/2.4.27-2-sparc64/kernel/drivers/net/tg3.o
  insmod: /lib/modules/2.4.27-2-sparc64/kernel/drivers/net/tg3.o: unresolved symbol request_firmware_R29d3fa0a
  insmod: /lib/modules/2.4.27-2-sparc64/kernel/drivers/net/tg3.o: unresolved symbol release_firmware_R6ef56f31
  
The 2.6 kernel takes a long time apparently loading the driver, but it
doesn't seem to work then.  dmesg shows this, once for each of the
four interfaces:

  tg3.c:v3.10 (September 14, 2004)
  tg3: tg3_request_firmware (eth%d): Couldn't get firmware "tg3/tso-1.4.0".
  tg3: eth%d: Firmware "tg3/tso-1.4.0" not loaded; continuing without TSO.
  eth0: Tigon3 [partno(Sun 570X) rev 2003 PHY(5704)] (PCI:66MHz:64-bit) 10/100/1000BaseT Ethernet 00:03:ba:5a:0d:f7
  
#282728 also reports problems with tg3 (on x86?), but with no details.