Booting Blade 2000 "not enough memory"

I'm not having any luck getting SuSE Sparc Linux 7.3's installation CD
booting on my Blade 2000 Anniversary Edition.

The list archives
(http://lists.suse.com/archive/suse-sparc/2002-Mar/0241.html) mention
someone who managed to find a kludge for his E450 for this problem
(booting Solaris first to initialize memory, then rebooting to Linux).
Not a great solution, and didn't work for me since my system wants to
power cycle when going from a running Solaris to "boot cdrom ...".

I saw that the release notes say the Blade 1000 is supported (and
Blade 100) but doesn't mention the 2000.  Well, it's new, so I'm
trying.

The symptom:  I try booting from the "ok" prompt with something like:
  ok boot cdrom /boot/vmlinuz64 mem=1024M initrd=/boot/initrd64.small

SILO runs and the SuSE Linux/SPARC 7.3 menu displays, then

  Uncompressing image...
  Could not find any available memory for initial ramdisk
  Fatal error: You do not have enough continuous available memory for such initial ramdisk.
  Program terminated


I've tried variations (smaller/bigger/no memory arg, no initrd
arg...).  I've checked through the kernel source & kernel mailing list
archives to see if there is any particular limitation with the amount
of RAM in a machine, but it's inconclusive where the limitation or
problem lies.

The system is a Blade 2000 Anniversary Edition with 8GB of RAM and 2
UltraSPARC-III+ CPUs.

Any suggestions would be welcome, including "this just doesn't work"
or "you need a newer kernel".  I'd like to try a different distro, too,
but none of the other sparc64 distros have an easy-to-try CD image
(the Blade doesn't have a floppy drive).

Thanks....Greg
[email protected] http://ils.unc.edu/gbnewby

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